Fund calendar 2026
A fund's year has two halves that no regulator or tax authority ever shows you together: the regulatory & reporting filings (Annex IV, ManCo accounts, registry confirmations, fees, ESG and investor reporting) and the investor tax cycle (K-1s, reporting-fund status, subscription tax, CRS/FATCA). Both are on this one page — switch between them with the tabs below. Filter by who it lands on, by domicile and by regulator; every row links to its own primary source.
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Who this calendar is for — the filer of record. Each deadline is tagged to the entity legally responsible for filing it, not the entity it is about. In day-to-day language this gets blurred: an administrator, engaged by the fund manager, prepares "the Annex IV for Fund V" using Fund V's data — but the obligation and the liability sit with the AIFM, not with Fund V and not with the administrator who does the keystrokes. So on this calendar Annex IV sits under the manager/AIFM, FATCA/CRS under the fund (the Reporting FI), economic substance under the manager/GP. Filter to the entity you file as, and the deadlines that are legally yours attach.
If you operate funds across more than one of these domiciles, no regulator gives you the combined picture — each publishes its own deadlines on its own site, in its own format. The tables below consolidate the recurring 2026 filing obligations per regulator, each row linked to the regulator's own page. Deadlines tied to a financial year end are shown for the common 31 December year end — if yours differs, shift them accordingly.
This page holds the dates. For the mechanics behind the biggest recurring row — how your Annex IV frequency is decided, what sits in the file, which portal each regulator uses and what bounces a first-time filing — see the Annex IV practical guide.
By regulator
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| AIFM reporting (Annex IV, Art. 3(3)(d) / 24) | Registered and authorised AIFMs; frequency (quarterly / half-yearly / annual) set by AuM self-assessment | 1 month after period end: 31 Jan (Q4-25 / H2-25 / annual 2025) · 30 Apr · 31 Jul · 31 Oct; +15 days where the AIF is a fund of funds (e.g. 15 Feb, 15 Aug) | eDesk "AIFM Reporting" or S3 API | CSSF AIFMD FAQ · Circular CSSF 23/844 |
| U1.1 monthly financial information | All Luxembourg UCIs — UCITS, Part II, SIFs, SICARs | Within 10 calendar days of each month end | eDesk or S3 API (XML only) | CSSF — reporting by UCIs |
| G2.1 quarterly financial information | Chapter 15/16 management companies and AIFMs | Quarterly versions by the 20th of the month after quarter end; annual version 1 month after AGM approval | e-file / SOFiE (ManCos); email to aifm_reporting@cssf.lu (AIFMs) | CSSF — reporting by IFMs |
| SAQ, Separate Report & Management Letter (IFM level) | All Luxembourg IFMs | SAQ within 4 months of financial year end (30 Apr for Dec YE); SR / ML within 7 months (31 Jul) | eDesk "Collective Investment Sector Reporting Tool" or S3 API | CSSF — reporting by IFMs |
| SRRC — AML/CFT summary report of the RC | All Luxembourg IFMs, including registered AIFMs | Within 5 months of financial year end (31 May for Dec YE) | eDesk "AML/CFT Summary report RC" or S3 API | CSSF — reporting by IFMs |
| MMF reporting (Money Market Fund Regulation) | Managers of Luxembourg MMFs (quarterly or annual, by AuM) | Within 30 days of the end of the quarter / year | e-file / SOFiE | CSSF — reporting by UCIs |
| Commercial real-estate exposure data | IFMs managing funds with CRE exposure | Semi-annual: 20 May and 20 Oct | eDesk or S3 API | CSSF — reporting by IFMs |
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| AIFMD Annex IV transparency reporting | Irish-authorised and registered AIFMs; frequency by AuM | 1 month after period end (same EU-wide mechanics as CSSF/FCA rows: 31 Jan · 30 Apr · 31 Jul · 31 Oct); the Bank publishes its exact submission dates — see "To verify" | Central Bank Portal | CBI — AIFM reporting requirements |
| AIFM annual audited accounts + minimum capital requirement report | Authorised AIFMs | Within 4 months of financial year end (30 Apr for Dec YE) | Central Bank Portal | CBI — AIFM reporting requirements |
| AIFM interim financial statements (balance sheet, P&L) | Authorised AIFMs — reporting interval advised to each firm individually | Firm-specific; confirm your interval on the Portal profile | Central Bank Portal | CBI — AIFM reporting requirements |
| UCITS ManCo annual audited accounts + half-yearly accounts + MCR report | UCITS management companies | Annual: within 4 months of year end (30 Apr for Dec YE); half-yearly: within 2 months of half-year end (31 Aug for 30 Jun) | Central Bank Portal | CBI — UCITS ManCo reporting requirements |
| Fitness & Probity — annual PCF confirmation and CF certification | All regulated firms, including fund managers — every active PCF and CF holder | Annual; exact 2026 submission window in "To verify" below | Central Bank Portal (F&P section) | CBI — F&P ongoing compliance |
| Fund-level supervisory returns (Fund Metadata, Daily Investment Fund Return, MMFR reporting) | Irish-authorised UCITS and AIFs (per fund type) | Per-return schedules set in the Bank's templates and guidance | Central Bank Portal (secure web-based reporting) | CBI — fund reporting requirements |
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| AIFMD transparency reporting — AIF001 / AIF002 (Annex IV) | UK AIFMs (full-scope, small authorised, small registered); frequency by AuM | No later than 1 month after period end; reporting periods end on the last business day of Mar / Jun / Sep / Dec — so 31 Jan (annual, H2, Q4-25) · 30 Apr · 31 Jul · 31 Oct; +15 days where the AIF is a fund of funds — the extension is retained verbatim in the UK assimilated Art. 110(1) | RegData, one report per AIF under its Product Reference Number (PRN) | FCA — AIFM reporting · FCA Annex IV Q&A |
| FCA periodic (annual) fees | All authorised firms, including AIFMs and UCITS ManCos; fund vehicles also pay periodic fees | Invoiced from July; previous-year fees under £50k: pay in full by 1 Aug or within 30 days of invoice; £50k and over: 50% "on account" by 1 Apr, balance per invoice. Late payment: £250 admin fee + interest | FCA online invoicing (fees portal) / direct debit | FCA — pay your annual fee |
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| Registry annual confirmation statement + annual fee | Every Jersey-registered entity — including fund companies and limited partnerships — registered in or before the preceding year | Window 1 Jan – 28 Feb 2026; hard deadline 11:59 pm on 28 Feb 2026 (JFSC staffed the Saturday deadline day) | myRegistry | JFSC — annual confirmation · JFSC deadline reminder |
| Co-ordinated Portfolio Investment Survey (CPIS — IMF statistics) | Banking, funds and insurance businesses and SPV providers contacted by the JFSC (annual email request) | 7 Apr 2026; portal open ~12 weeks from the early-February request | myJFSC (data upload) | JFSC — CPIS guidance · JFSC — CPIS on myJFSC |
| Jersey Private Fund (JPF) annual compliance return | The Designated Service Provider (DSP) of every JPF — responsible for accuracy and completeness; material issues must be reported separately within 28 days, not saved for the return | Annual; in recent cycles the return opened 1 Aug with a 31 Aug deadline — 2026 window in "To verify" | myJFSC (Entities → Applications) | JFSC — JPF annual returns · JFSC — JPF returns via myJFSC |
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| Annual fees | All GFSC licensees and funds. 2026 rates: PIF £1,000 per fund (cut from £4,235); open- and closed-ended collective investment schemes £4,400 per scheme | Due 31 Jan 2026. Late payment accrues monthly penalties: £125 first month, £250 second, £375 third and each month after | GFSC invoice / Online Submissions Portal | GFSC — investment fees · GFSC annual fees FAQ |
| Class A fund audited financial statements | Class A (authorised open-ended, retail-eligible) schemes | Within 4 months of the end of the annual accounting period (30 Apr for Dec YE) | GFSC Online Submissions Portal | GFSC — investment returns |
| Licensee audited financial statements (COB Rule 4.2(5)) | POI-licensed firms (managers, administrators) | Deadline set in the Licensees (Conduct of Business) Rules 2021 — exact timeframe in "To verify" | GFSC Online Submissions Portal | GFSC — investment returns |
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| CIMA annual fee | Registered mutual funds (Mutual Funds Act) and private funds (Private Funds Act) | 15 January 2026 (fixed annual date) | CIMA REEFS | CIMA |
| Fund Annual Return (FAR) | Registered mutual & private funds — the operator/GP is legally responsible; the local auditor submits it with the accounts | Within 6 months of financial year end (30 June 2026 for a 31 Dec YE); up to three one-month extensions on application | CIMA REEFS | Maples |
| Audited financial statements | Registered funds — must be signed off and filed by a CIMA-approved local Cayman auditor | Within 6 months of financial year end (30 June 2026) | CIMA REEFS (filed with the FAR) | Ogier |
| Economic Substance return | Entities carrying on fund-management business (managers / GPs) — the investment fund itself is out of scope and files only an ES notification | Within 12 months of financial year end (31 December 2026) — whether a given GP/manager is in scope is fact-dependent; see "To verify" | DITC portal | Maples |
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| Approved / Incubator Fund annual return | Approved funds and incubator funds | 31 January 2026 (in respect of the preceding year) | BVI FSC | Maples |
| FSC annual renewal / licence fee | All fund classes (professional, private, public, approved, incubator); the administrator / registered agent usually pays on behalf | 31 March 2026 | BVI FSC | Mourant |
| Mutual Fund Annual Return (MFAR) | Professional, private and public funds | 30 June 2026 (fixed, regardless of financial year end) | BVI FSC | BVI FSC |
| Audited financial statements | Professional & private funds (approved / incubator funds file unaudited financials) | Within 6 months of financial year end (30 June 2026); extension up to 6 months on application | BVI FSC | Mourant |
| Economic Substance report | The legal entity (registered agent files) — "investment fund business" is carved out of the relevant activities | Within 6 months of the ES financial period end (30 June 2026 for a Jan–Dec period); the period is entity-specific — see "To verify" | ITA (BOSS → VIRGIN from 2026) | Maples |
| Registrar annual company fee | The BVI company (fund vehicle); registered agent pays on behalf | 31 May 2026 (incorporated Jan–Jun) or 30 November 2026 (incorporated Jul–Dec) | BVI Registry | Mourant |
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| BMA annual fee | All fund classes — authorised (Standard, Institutional, Administered, Specified Jurisdiction) and registered (Professional Class A/B, Professional Closed, Private) | 31 March 2026 | BMA | BMA 2026 fee schedule |
| Annual certification / statement of compliance + financial statements | All fund classes; private funds may file management accounts instead of audited statements | Within 6 months of financial year end (30 June 2026); up to 3 months' extension (fee) on application | BMA Integra portal | Appleby |
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| Fund annual report (audited financial statements + Fund Auditor's Report) — to Unitholders and the DFSA | Fund Manager, per fund (Public, Exempt and QIF) | Within 4 months of the annual accounting period end (30 April 2026 for a 31 Dec year end) | DFSA | DFSA CIR 9.4.2 |
| Fund interim report — QIFs exempt unless a material change occurred | Fund Manager, per fund; umbrella funds per sub-fund | Within 2 months of the interim accounting period end (31 August 2026 for a 30 Jun half-year end) | DFSA | DFSA CIR 9.4.2(1)(b) |
| Periodic Fund Return — H1 period (1 Jan–30 Jun) | Fund Manager, per Domestic Fund (External Funds included) | 31 July 2026 | DFSA | DFSA CIR 9.6.1–9.6.2 |
| Periodic Fund Return — H2 period (1 Jul–31 Dec) | Fund Manager, per Domestic Fund | 31 January of the following year (H2 2025 leg: 31 Jan 2026) | DFSA | DFSA CIR 9.6.1–9.6.2 |
| Auditor's reports of the firm (annual financial statements etc.) | Fund Manager as Authorised Person (Branch: head-office filing date + 14 days if later) | Within 4 months of the firm's financial year end (30 April 2026) | DFSA | DFSA GEN 8.6.2 |
| Annual report on Controllers | Fund Manager as Authorised Firm | Within 4 months of the firm's financial year end (30 April 2026) | DFSA | DFSA GEN 11.8.12 |
| Annual AML Return (reporting period 1 Aug prior year – 31 Jul) | Fund Manager as Relevant Person | End of September 2026 | DFSA portal | DFSA AML 14.5.1 |
| Prudential returns (EPRS) — annual return + quarterly/other returns per licence category | Fund Manager as Authorised Firm (PIB category per licence) | Annual return: financial year end + 4 months; other returns: period end + 1 month | DFSA EPRS | DFSA PIB 2.3.8 |
| Obligation | Who it applies to | Deadline / window (2026) | Portal / how filed | Source |
|---|---|---|---|---|
| Fund annual report — to Unitholders and sent to the Regulator | Fund Manager, per fund | Within 6 months of the annual accounting period end (30 June 2026 for a 31 Dec year end) | FSRA | ADGM FUNDS 16.4.2 |
| Fund interim report — QIFs exempt unless a material change occurred | Fund Manager, per fund | Within 3 months of the interim accounting period end (30 September 2026 for a 30 Jun half-year end) | FSRA | ADGM FUNDS 16.4.2(1)(b) |
| Periodic Fund Return — quarterly (Public Funds; open-ended Exempt Funds) | Fund Manager, per fund | Within 1 month of each reporting date (31 Mar / 30 Jun / 30 Sep / 31 Dec) | FSRA | ADGM FUNDS 16.6.1–16.6.4 |
| Periodic Fund Return — semi-annual (closed-ended Exempt Funds; QIFs; Foreign Funds of an Authorised Fund Manager) | Fund Manager, per fund | Within 6 months of each reporting date (30 Jun / 31 Dec — the 31 Dec 2025 leg lands 30 June 2026) | FSRA | ADGM FUNDS 16.6.1–16.6.5 |
| Auditor's reports of the firm (secondary source — see To verify) | Fund Manager as Authorised Person | Within 4 months of the firm's financial year end (30 April 2026) | FSRA | ADGM GEN 6.6.2 |
| Annual report on Controllers (secondary source — see To verify) | Fund Manager as Authorised Person | Within 4 months of the firm's financial year end (30 April 2026) | FSRA | ADGM GEN 8.8.12 |
| Annual AML Return (secondary source — see To verify) | Fund Manager as Relevant Person | End of April 2026 (covers the prior calendar year) | FSRA | ADGM AML 4.6.1 |
The year at a glance — cross-domicile quarter view
Dates below assume a 31 December financial year end and calendar-quarter Annex IV reporting. This view is generated from the same structured data that powers the homepage deadline strip, so the two cannot drift apart. Use the filters to slice by who it lands on, domicile (which then constrains the regulator list), obligation type or business.
| Quarter | Date | What lands | Domicile |
|---|---|---|---|
| Q1 | 15 Jan | CIMA annual fee — registered mutual / private fund source | KY |
| 31 Jan | DFSA Periodic Fund Return — H2 period (1 Jul–31 Dec) due by 31 January of the following year source | DIFC | |
| 31 Jan | GFSC annual fees due source | GG | |
| 31 Jan | Annex IV annual / H2 / Q4 report to the national competent authority source | LU · IE · UK | |
| 31 Jan | Approved / Incubator Fund annual return to the FSC source | VG | |
| 31 Jan | FSRA Periodic Fund Return, Q4 (reporting date 31 December of the prior year) leg, for Public Funds and open-ended Exempt Funds, within 1 month of the reporting date source | ADGM | |
| 15 Feb | Annex IV fund-of-funds 15-day extension expires (EU NCAs) source | LU · IE | |
| 28 Feb | Jersey registry annual confirmation statement + fee — hard portal cut-off 11:59 pm (window from 1 Jan) source | JE | |
| 28 Feb | Guernsey Registry annual validation source | GG | |
| 31 Mar | BMA annual fee (fund) source | BM | |
| 31 Mar | BVI FSC annual renewal / licence fee source | VG | |
| Q2 | 1 Apr | FCA on-account fee (firms with ≥ £50k prior-year fees) source | UK |
| 7 Apr | Jersey CPIS (IMF portfolio survey) submission via myJFSC source | JE | |
| 16 Apr | AIFMD II applies — transposition deadline; LMT selection obligations start for new funds source | LU · IE · UK · JE · GG | |
| 30 Apr | FSRA Annual AML Return (covers the preceding calendar year), via FSRA Connect source | ADGM | |
| 30 Apr | Annex IV Q1 report to the national competent authority source | LU · IE · UK | |
| 30 Apr | FSRA Periodic Fund Return, Q1 (reporting date 31 March) leg, for Public Funds and open-ended Exempt Funds, within 1 month of the reporting date source | ADGM | |
| 31 May | Registrar annual company fee (incorporated Jan–Jun) source | VG | |
| 30 Jun | FSRA Periodic Fund Return, H2 (reporting date 31 December of the prior year) leg, for closed-ended Exempt Funds, Qualified Investor Funds and Foreign Funds, within 6 months of the reporting date source | ADGM | |
| 30 Jun | Entity-level Principal Adverse Impact (PAI) statement published on the FMP's website by 30 June, covering the preceding calendar year. source | EU | |
| 30 Jun | Mutual Fund Annual Return (MFAR) to the FSC source | VG | |
| Q3 | 1 Jul (from) | FCA annual fee invoices start issuing (payment by 1 Aug or +30 days for < £50k firms) source | UK |
| 31 Jul | DFSA Periodic Fund Return — H1 period (1 Jan–30 Jun) due by 31 July source | DIFC | |
| 31 Jul | Jersey Private Fund (JPF) annual compliance return to the JFSC (made up as at 30 June) source | JE | |
| 31 Jul | Annex IV Q2 / H1 report to the national competent authority source | LU · IE · UK | |
| 31 Jul | FSRA Periodic Fund Return, Q2 (reporting date 30 June) leg, for Public Funds and open-ended Exempt Funds, within 1 month of the reporting date source | ADGM | |
| 1 Aug | FCA annual fee payment deadline (< £50k firms, unless invoiced later) source | UK | |
| 30 Sep | DFSA Annual AML Return via the DFSA electronic portal (reporting period 1 Aug previous year – 31 Jul) source | DIFC | |
| Q4 | 31 Oct | Annex IV Q3 (quarterly reporters) source | LU · IE · UK |
| 31 Oct | FSRA Periodic Fund Return, Q3 (reporting date 30 September) leg, for Public Funds and open-ended Exempt Funds, within 1 month of the reporting date source | ADGM | |
| 31 Dec | FSRA Periodic Fund Return, H1 (reporting date 30 June) leg, for closed-ended Exempt Funds, Qualified Investor Funds and Foreign Funds, within 6 months of the reporting date source | ADGM |
Running all year — obligations set by a rule, not a fixed date
These have no single calendar date: each runs from the fund's own year end or an event. The obligation links to the page that explains it.
In practice: the cross-border crunch is January–February, not year end. Annex IV annual reports for three regulators, Guernsey's annual fees and the whole Jersey registry confirmation window all land inside six weeks. The Jersey deadline is a hard portal cut-off at 11:59 pm, not a postmark. If one team handles several domiciles, book the January capacity now. And remember Annex IV periods end on the last business day of the quarter, so your data reference date is not always the calendar quarter end. The full frequency-and-mechanics walkthrough is in the Annex IV practical guide.
To verify — regulatory
Confirmed obligations whose exact parameter we could not yet pin to a primary source — treat these as open questions, not facts:
- Ireland — F&P annual PCF confirmation window: the obligation and Portal are confirmed; the CBI page does not state the 2026 submission deadline (industry practice suggests a Q1 window). Confirm in the CBI PCF Annual Confirmation guidance (Dec 2024).
- Ireland — Annex IV exact submission dates: industry summaries cite "last calendar day of the month following the quarter"; confirm the CBI's published 2026 reporting dates on the Portal/ONR guidance.
- Ireland — fund-level annual reports: UCITS annual report (4 months) / half-yearly (2 months) and AIF annual report (6 months) publication-and-filing deadlines — confirm against the UCITS Regulations 2011 and the AIF Rulebook text.
- UK — AIF annual report: FUND 3.3 (believed 6 months from financial year end) — confirm in the FCA Handbook FUND 3.3 (page is JavaScript-rendered; not machine-verifiable here).
- Luxembourg — fund annual/semi-annual report deadlines: UCITS 4 months / semi-annual 2 months, Part II & SIF 6 months (law-based) — confirm against the 2010 Law and SIF Law texts on Legilux.
- Jersey — 2026 JPF annual compliance return window: 1–31 Aug in recent cycles; watch for the JFSC's 2026 announcement.
- Jersey — certified fund annual compliance returns and quarterly fund statistical returns: current form and deadlines on myJFSC.
- Guernsey — Class B / registered fund financial statement deadlines (believed 6 months) and quarterly statistical returns via the Online Submissions Portal; POI licensee audited FS deadline under COB Rule 4.2(5).
- AIFMD II horizon: revised Annex IV reporting applies from 16 Apr 2027, not 2026 — confirm transition details as ESMA finalises the technical standards.
- US — Form N-PORT filing cadence: the 2024 SEC amendments moved N-PORT to monthly filing within 30 days of month end (staggered compliance dates) — confirm the exact 2026 cadence for your fund type before relying on it. Form ADV (31 Mar), Form PF (30 Apr) and Form N-CEN (16 Mar) for 31 Dec filers are on the quarter view above.
- Cayman — CIMA fee amounts & the ES-return scope: the 15 January fee date is fixed. The CI$ amounts vary by fund sub-type, so confirm them on the current CIMA fee schedule. Whether a specific GP or manager files an ES return, rather than the fund's ES notification, depends on its residence and activity.
- BVI — economic-substance period: the ES report is due within 6 months of the entity's ES financial period end, which is entity-specific (not always January to December); set your own period before relying on 30 June. The BVIFARS annual-fee date also rests on a secondary source: confirm it with the ITA.
- Bermuda — FATCA route & date: Bermuda is a Model 2 IGA, so FATCA is filed direct to the US IRS (the 31 March date is IRS-set, not published by Bermuda) — confirm the current route with the administrator. CRS (31 May) and the CRS compliance certification (30 Sep) go to the Bermuda portal.
- ADGM — firm-level GEN and AML deadlines: the auditor's-reports (GEN 6.6.2, FY + 4 months), Controllers-report (GEN 8.8.12, FY + 4 months) and annual AML Return (AML 4.6.1, end of April) rules were located via secondary snippets of the official rulebook — the ADGM rulebook host blocks direct verification. One browser session on the linked pages confirms all three.
- ADGM — prudential (EPRS) return deadlines: expected to mirror the DFSA pattern (annual FY + 4 months, other returns + 1 month) via the ADGM PRU Rulebook, but no primary text located — not on the calendar until verified.
- LU — CSSF commercial-real-estate exposure data, first collection: an open question remains on its scope or date, so it is not on the calendar. Best lead: CSSF — Data collection on commercial real estate for investment fund managers (official eDesk procedure).
- LU — CSSF commercial-real-estate exposure data, second collection: an open question remains on its scope or date, so it is not on the calendar. Best lead: CSSF — Data collection on commercial real estate for investment fund managers (official eDesk procedure).
- IE — Auditor's annual confirmation to the Central Bank on the duty to report (Central Bank Act 1997 s.27B): an open question remains on its scope or date, so it is not on the calendar. Best lead: Central Bank Act 1997, s.27B(2) (Law Reform Commission revised Act).
- ADGM — ADGM Fund Auditor's Report among the auditor reports a Fund Manager files within four months of its own year end (GEN 6.6.2 reading): an open question remains on its scope or date, so it is not on the calendar. Best lead: FSRA General Rulebook GEN 6.6.1(5) and GEN 6.6.2 (GEN VER15.160926; GEN 6.6.2 amended 3 February 2020).
- LU — Luxembourg UCI, SIF or SICAR: réviseur's reports and written comments (management letter) communicated to the CSSF: an open question remains on its scope or date, so it is not on the calendar. Best lead: Law of 17 December 2010 Art. 154(3) + Law of 13 February 2007 (SIF) Art. 55(3) + Law of 15 June 2004 (SICAR) Art. 27(3); Circular CSSF 21/790 not read.
A fund's regulatory calendar is only half the year. The other half is tax: the K-1 your US partners wait for, the UK reporting-fund computation, Luxembourg's subscription tax quarters, Germany's InvStG figures, and a CRS/FATCA deadline that is different in almost every jurisdiction you touch. No tax authority publishes the combined picture — institutional investors assemble it from Big-4 memos, one country at a time. The table below holds it in one filterable view, each row linked to the tax authority's own source.
One vocabulary note. CRS (the Common Reporting Standard — the OECD's automatic exchange of account information) and FATCA (the US equivalent) are filed by funds and financial institutions about investors — but their deadlines drive investor documentation cycles, so they live on this calendar too. From 1 January 2026 the upgraded CRS 2.0 applies: 2025 data still files on the old deadlines below; the first CRS 2.0 cycle lands mid-2027.
| Jurisdiction | Obligation | Applies to | 2026 deadline / rule | Extension | Source |
|---|---|---|---|---|---|
| United States | Qualified Intermediary (QI) Periodic Certification (secondary source) | withholding agents, financial institutions (only a Qualified Intermediary, an entity with a QI agreement with the IRS) | 31 Dec 2025 | — | IRS official QI program page |
| Germany | Investmentsteuergesetz (InvStG 2018) – Vorabpauschale Publication | fund operators, investors (an investor-side tax on investors holding the fund on 31 December, not a filing by every fund) | 13 Jan 2026 | — | German Federal Ministry of Finance (BMF) official publication |
| Ireland | Investment undertaking return and payment of appropriate tax (exit tax): chargeable events 1 July to 31 December | investment undertakings, regulated funds (investment undertakings only; an investment limited partnership is tax transparent) | 30 Jan 2026 | — | Revenue Tax and Duty Manual 27-01a-02 para. 5.1 (January 2026); TCA 1997 s. 739F(2)(b)-(3) |
| United States | Form 1099-DIV Dividend & Distribution Reporting | mutual funds, ETFs, US individual investors | 2 Feb 2026 | An automatic 30-day extension is available on Form 8809 through FIRE. | IRS general information returns instructions |
| United States | Form 1065 Partnership Return & Schedule K-1 | partnership funds, LP partners (funds taxed as partnerships only) | 16 Mar 2026 | An automatic six-month extension to 15 September is available on Form 7004. | IRS official form page |
| United States | Form 1042-S Withholding on Foreign Investors | the withholding agent paying US-source income to foreign persons (a fund, its GP, an SPV or a blocker when it makes such payments) (only an entity acting as withholding agent for payments to foreign persons) | 16 Mar 2026 | An automatic 30-day extension is available on Form 8809 through FIRE. | IRS official instructions |
| United States | Form 8966 FATCA Report | financial institutions, custodians | 31 Mar 2026 | An extension of time to file can be requested on Form 8809-I. | IRS official form page |
| British Virgin Islands | FATCA registration on BVIFARS (one-time, in the first year a Reporting Financial Institution must report) | reporting financial institutions (only a Reporting Financial Institution in the first year it must report; registration is required once) | 1 Apr 2026 | — | BVI International Tax Authority, BVIFARS deadlines (2026); Mutual Legal Assistance (Tax Matters) Act (Revised Edition 2020, as amended) s. 13(9) |
| United States | FBAR — Report of Foreign Bank and Financial Accounts (FinCEN Form 114) | the fund, the AIFM or management company (US persons with a financial interest in, or signature authority over, foreign accounts above $10,000 in total) | 15 Apr 2026 | Automatic extension to 15 October 2026; no extension request is needed. | IRS FBAR guidance page |
| Bermuda | CRS notification (enrolment) for new Reporting Financial Institutions | reporting financial institutions (new Reporting Financial Institutions only) | 30 Apr 2026 | — | Bermuda CRS Regulations 2017, reg. 5(1)(a) |
| British Virgin Islands | CRS registration on BVIFARS (one-time, the year after an entity becomes a BVI Financial Institution) | reporting financial institutions (only an entity that became a BVI Financial Institution in the prior calendar year; registration is required once) | 30 Apr 2026 | — | BVI International Tax Authority, BVIFARS deadlines (2026); Mutual Legal Assistance (Tax Matters) Act (Revised Edition 2020, as amended) s. 28(3) |
| Bermuda | CRS return to the Bermuda Tax Information Reporting portal | reporting financial institutions | 31 May 2026 | — | regulator |
| Singapore | CRS Return (Common Reporting Standard) | reporting financial institutions, custodians | 31 May 2026 | — | IRAS (Inland Revenue Authority of Singapore) official portal |
| Singapore | FATCA Return | reporting financial institutions, custodians | 31 May 2026 | — | IRAS official portal |
| United Kingdom | HMRC CRS/FATCA Returns | financial institutions, custodians | 31 May 2026 | — | UK — International Tax Compliance Regulations 2015, reg. 6(4); HMRC 'How to report Automatic Exchange of Information' |
| British Virgin Islands | FATCA & CRS annual report to BVIFARS (prior-year data) | reporting financial institutions | 31 May 2026 | — | BVI International Tax Authority, BVIFARS deadlines (2026); Mutual Legal Assistance (Tax Matters) Act (Revised Edition 2020, as amended) s. 29(3)-(4) (CRS) and s. 13(5)(b) (FATCA) |
| Jersey | Jersey company income tax — instalment payment on account (50% of estimated liability; large corporate remitters: 31 March) | companies (funds, managers, SPVs) (companies that are not large corporate remitters; those pay by 31 March) | 31 May 2026 | — | Revenue Jersey — company tax payment dates (official) |
| Austria | Austrian CRS/FATCA Returns | reporting financial institutions, custodians | 30 Jun 2026 | — | EU CRS/FATCA directive compliance (DAC2) secondary-only |
| Switzerland | Swiss CRS/FATCA Returns (Automatic Exchange of Information) (secondary source) | reporting financial institutions, banks | 30 Jun 2026 | — | Swiss FTA (ESTV) official portal |
| Guernsey | FATCA Return | financial institutions, custodians | 30 Jun 2026 | — | Guernsey Revenue Service official bulletin |
| Guernsey | Common Reporting Standard (CRS) Return | financial institutions, custodians | 30 Jun 2026 | — | Guernsey government official CRS portal |
| Ireland | Revenue CRS/FATCA Returns | financial institutions, custodians | 30 Jun 2026 | — | Revenue.ie official CRS/FATCA page |
| Jersey | FATCA Return | financial institutions, custodians | 30 Jun 2026 | — | Jersey government official portal |
| Jersey | Common Reporting Standard (CRS) Return | financial institutions, custodians | 30 Jun 2026 | — | Revenue Jersey (gov.je) — Common Reporting Standard guidance |
| Luxembourg | ACD FATCA/CRS Returns | reporting financial institutions, custodians | 30 Jun 2026 | — | Luxembourg CRS Law of 18 Dec 2015, Art. 2(3), and FATCA Law of 24 Jul 2015, Art. 2(4) (Mémorial A) |
| UAE / Dubai | CRS/FATCA reporting to the Ministry of Finance | reporting financial institutions, custodians | 13 Jul 2026 | The standing deadline is 30 June; for reporting year 2025 the Ministry of Finance extended it to 13 July 2026. | UAE Ministry of Finance: Ministerial Resolution No. 134 of 2021, Art. 4(2)-(3) (CRS); MoF FATCA FAQ Q27 |
| Ireland | Investment undertaking return and payment of appropriate tax (exit tax): chargeable events 1 January to 30 June | investment undertakings, regulated funds (investment undertakings only; an investment limited partnership is tax transparent) | 30 Jul 2026 | — | Revenue Tax and Duty Manual 27-01a-02 para. 5.1 (January 2026); TCA 1997 s. 739F(2)(a)-(3) |
| Germany | FATCA & CRS Reporting to BZSt | reporting financial institutions, custodians | 31 Jul 2026 | — | FKAustG § 27(2) (CRS) and FATCA-USA-UmsV § 8(3) (FATCA) |
| Cayman Islands | FATCA & CRS report to the DITC | reporting financial institutions | 31 Jul 2026 | — | regulator |
| Cayman Islands | CRS Compliance Form to the DITC | reporting financial institutions | 15 Sep 2026 | — | regulator |
| Bermuda | CRS Annual Compliance Certification Form | reporting financial institutions | 30 Sep 2026 | — | regulator |
| Jersey | Jersey company income tax return (Section 7 carries the economic substance questions) | companies, partnerships (companies tax resident in Jersey) | 30 Nov 2026 | — | Revenue Jersey — corporate tax return guidance notes |
| Jersey | Jersey company income tax — balance due (large corporate remitters: 30 September) | companies (funds, managers, SPVs) (companies that are not large corporate remitters; those pay the balance by 30 September) | 30 Nov 2026 | — | Revenue Jersey — company tax payment dates (official) |
| Guernsey | Guernsey company income tax return | companies (funds, managers, SPVs) (Guernsey-registered companies that do not hold exempt status; a collective investment scheme may apply for exemption) | 30 Nov 2026 | — | States of Guernsey Revenue Service — company tax returns (official) |
| Austria | OeKB Tax Data Notification & Reporting Fund Status | the fund's management company, through an Austrian tax representative, to the OeKB notification office (only funds, domestic or foreign, that seek or keep Austrian reporting-fund status) | within seven months of the fund's financial year end, for domestic and foreign funds alike (FMV 2015 § 3(2) Z 2) | — | Fonds-Melde-Verordnung 2015 (BGBl. II Nr. 167/2015) § 3(2), RIS consolidated; InvFG 2011 §§ 186(2) Z 2, 188 |
| British Virgin Islands | CRS Additional Information Form via BVIFARS | reporting financial institutions | within 9 months of financial year-end | — | BVI International Tax Authority — Guide to Completing the Additional Information Forms (7 Apr 2025), para. 1.3 |
| Cross-jurisdictional | CRS and FATCA: exchange deadline vs filing deadline | all financial institutions, funds | Authorities exchange within nine months of year-end; each institution's filing date is set by domestic law | — | Council Directive 2011/16/EU (current consolidated text), Art. 8(3a) and 8(6)(b); Model 1 IGA Art. 3(5); IRS Form 8966 instructions |
| Cross-jurisdictional | Amended CRS (DAC8) applies to calendar-year 2026 data | all CRS jurisdictions, reporting institutions | 2026 data, first reported in 2027; reporting deadlines unchanged | — | Council Directive 2011/16/EU (current consolidated text), Annex I Sections VIII C(9)-(10) and XI; Directive (EU) 2023/2226 (DAC8) Art. 2(1) |
| EU | DAC6 — disclosure of a reportable cross-border arrangement | the AIFM or management company, the investment adviser (only when a reportable cross-border arrangement exists) | within 30 days of the earliest Article 8ab(1) trigger | — | Council Directive 2011/16/EU (current consolidated text), Article 8ab(1)-(2), inserted by Directive (EU) 2018/822 |
| EU | DAC6 — periodic update of a marketable cross-border arrangement | the AIFM or management company, the investment adviser (only an intermediary of a marketable arrangement) | every 3 months (Article 8ab(2)) | — | Council Directive 2011/16/EU (current consolidated text), Article 8ab(1)-(2), inserted by Directive (EU) 2018/822 |
| Germany | German special investment fund: declaration for the separate and uniform determination of tax bases (§ 51 InvStG) | a domestic special investment fund itself; for a foreign special investment fund, the fund or the German investor (only a German special investment fund, a Spezial-Investmentfonds, or a foreign one with German investors) | within eight months after the end of the special investment fund's financial year (§ 51(2) InvStG) | — | Investmentsteuergesetz 2018 § 51(2)-(3) (gesetze-im-internet.de, last amended by Art. 28 G v. 4.2.2026) |
| Ireland | Dividend Withholding Tax (DWT) Return & Payment | the Irish-resident company paying the distribution, or an authorised withholding agent (only an Irish-resident company paying distributions; an Irish regulated fund is a collective investment undertaking and is outside DWT) | 14th day of the month after the month of the distribution | — | Revenue.ie dividend withholding tax page; TCA 1997 s. 172K(1)-(2) and s. 172A(1)(b) |
| Ireland | Corporation tax return (CT1) and balance of corporation tax | companies (funds, managers, SPVs) (companies within the charge to Irish corporation tax; an Irish regulated fund is an investment undertaking and is generally outside it) | on or before the 23rd of the ninth month after the end of the accounting period (the 21st where the company does not pay and file electronically) | — | Revenue Commissioners — Corporation Tax payment and filing (official) |
| Ireland | Preliminary corporation tax | companies (funds, managers, SPVs) (companies within the charge to Irish corporation tax; an Irish regulated fund is an investment undertaking and is generally outside it) | Large companies: 23rd of the sixth month and 23rd of the eleventh month of the accounting period; small companies (prior-period liability below EUR 200,000): one instalment 31 days before the end of the accounting period, and before the 23rd of that month | — | Revenue Commissioners — When is preliminary Corporation Tax due? (official) |
| Ireland | VAT3 return and payment (bi-monthly taxable period) | companies (funds, managers, SPVs) (VAT-registered entities only) | by the 19th day of the month following the end of each taxable period; ROS filers may file by the 23rd | — | Revenue Commissioners — When VAT becomes payable (official) |
| Japan | Investment Trust Distribution Reporting & Withholding | investment trust operators, investors (investment trusts paying distributions only) | Withholding tax is paid by the 10th of the month after payment. Where the payment is made outside Japan, it is due by the last day of the following month. The payment record (支払調書) goes to the tax office within one month of the payment date | — | National Tax Agency (Japan) — Withholding Tax (official) |
| Jersey | Jersey GST return and payment | companies (funds, managers, SPVs) (GST-registered entities only) | no later than the last day of the month following the return period | — | Revenue Jersey — submitting a GST return (official) |
| Luxembourg | Pillar 2 (OECD GloBE) Registration & GIR Filing | MNE groups, fund groups (constituent entities of groups with consolidated revenue of at least EUR 750 million) | 15 months after the fiscal year-end (first filing was due 30 June 2026) | — | Guichet.lu (State portal) — Pillar 2 filings; Law of 22 December 2023 on minimum effective taxation (Mémorial A N° 864), art. 2: https://legilux.public.lu/filestore/eli/etat/leg/loi/2023/12/22/a864/jo/fr/pdfa/eli-etat-leg-loi-2023-12-22-a864-jo-fr-pdfa.pdf |
| Luxembourg | Corporate income tax (CIT), municipal business tax (MBT) & net wealth tax (NWT) return for the prior tax year | cit liable entities, mancos, soparfi (companies subject to Luxembourg corporate income tax; UCIs such as UCITS, Part II funds, SIFs and RAIFs are exempt and pay the subscription tax instead) | 31 December of the year following the tax year | — | Administration des contributions directes (ACD) — délais de dépôt des déclarations (official) |
| Luxembourg | Annual VAT return for the prior year | vat registered funds, mancos (VAT-registered entities only) | Before 1 March of the following year (annual-only filers, turnover below EUR 112,000); before 1 May of the following year (filers that also submit monthly or quarterly returns); filed via eCDF | — | Guichet.lu — filing VAT returns (official) |
| Luxembourg | Subscription Tax (Taxe d'Abonnement) Quarterly Declaration | the fund, per fund on MyGuichet.lu; a manager or agent may submit for it (funds that pay the subscription tax: UCITS, Part II funds, SIFs and RAIFs, not a risk-capital RAIF under art. 48; a vehicle outside those laws pays none) | within the first 20 days of the following quarter (20 April, 20 July, 20 October, 20 January) | — | AED (Administration de l'enregistrement, des domaines et de la TVA): taxe d'abonnement, fonds d'investissement; Arrêté grand-ducal du 20 février 1914 art. 2; Law of 17 December 2010 arts. 174-176 |
| Luxembourg | Periodic VAT return (monthly or quarterly) via eCDF | companies (funds, managers, SPVs) (VAT-registered entities only) | Monthly filers: before the 15th day of the month following the month; quarterly filers: before the 15th day of the quarter following the quarter | — | Guichet.lu — filing VAT returns (official) |
| Singapore | Section 13O, 13OA or 13U fund tax incentive: Annual Declaration to MAS | the approved fund; for a section 13OA limited partnership, its General Partner (funds approved under the section 13O, 13OA or 13U tax incentive only) | within 4 months after the end of the basis period (the fund's financial year) for each Year of Assessment (MAS Circular FDD Cir 05/2026) | — | MAS Circular FDD Cir 05/2026, Tax Incentive Schemes for Funds (31 July 2026), FAQ Q4; Income Tax Act 1947 s. 13O |
| South Korea | Withholding agent's beneficial-owner (treaty-rate) report | the Korean withholding agent (the payer); the foreign fund supplies its beneficial-owner application (filed by the Korean withholding agent, not by the fund) | End of February of the year after the payment year (earlier if the agent suspends or closes its business) | — | Korean Corporate Tax Act, Art. 98-6(4) (amended 23 Dec 2025) |
| South Korea | Treaty-rate correction claim for over-withheld tax | foreign investors, non residents (only a foreign investor whose Korean tax was withheld above the treaty rate) | Within 5 years from the 11th day of the month after the month the tax was withheld | — | Korean Corporate Tax Act, Art. 98-6(5)-(6) (treaty-rate correction claim) |
| Switzerland | Profit-tax return of a Swiss fund that is a tax subject (a fund with direct real estate, or a SICAF) | real estate funds, sicaf (only a Swiss fund that holds real estate directly, or a SICAF; a contractual fund, SICAV or KmGK without direct real estate is not a tax subject) | no federal date: DBG art. 124 leaves the filing deadline to the cantonal tax authority of the seat of the fund management company, SICAV or KmGK | — | Federal Act on Direct Federal Tax (DBG, SR 642.11) arts. 10(2), 49(2), 66(3), 124 (fedlex consolidation in force from 2 September 2026); ESTV Kreisschreiben Nr. 25, ss. 3.2 and 3.3 |
| Switzerland | Swiss fund annual report and accounts to the ESTV (fund tax information) | the fund management company, SICAV, KmGK or SICAF (the withholding-tax taxpayer) | within six months after the end of the financial year (VStV art. 32(2)); if not ready, the reason to the ESTV before the end of the seventh month (art. 32(4)) | — | Withholding Tax Ordinance (VStV, SR 642.211) art. 32 (fedlex consolidation in force from 1 January 2025); ESTV Kreisschreiben Nr. 24 and Nr. 25 |
| UAE / Dubai | UAE corporate tax return (not filed by an exempt Qualifying Investment Fund, which files the exemption declaration instead) | all in scope entities, investment funds (not an Exempt Person: an exempt Qualifying Investment Fund files the exemption declaration instead) | 9 months after financial year-end | — | UAE Ministry of Finance official portal; Federal Decree-Law No. 47 of 2022, arts. 48 and 53(1) (MoF English translation) |
| UAE / Dubai | Qualifying Investment Fund annual exemption declaration to the FTA (replaces the corporate tax return) | the fund (only a fund that is an exempt Qualifying Investment Fund; it replaces the corporate tax return) | no later than nine months from the end of the relevant Tax Period | — | Federal Tax Authority Decision No. 11 of 2023, art. 2 (unofficial translation published by the FTA); Federal Decree-Law No. 47 of 2022 arts. 4(1)(f), 4(3), 10, 53(5) |
| United Kingdom | HMRC Reporting Fund Status Computation & Investor Report | reporting funds, investors (offshore funds with HMRC reporting-fund status only) | within six months after the end of the reporting period (report to participants, reg. 90(5)) and of the period of account (information to HMRC, reg. 106(2)) | — | Offshore Funds (Tax) Regulations 2009 (S.I. 2009/3001), regs. 90(5), 91 and 106(2), latest revised text |
| United Kingdom | CT61 Quarterly Withholding Tax Return & Payment | withholding agents, companies (only a UK company that makes payments subject to income tax deduction, such as annual interest) | 14 days after quarter-end | — | UK government (GOV.UK) official form publication + Income Tax Act 2007 ss. 946-949 (legislation.gov.uk) |
| United Kingdom | Company Tax Return (CT600) | companies (funds, managers, SPVs) (companies within the charge to UK corporation tax; a limited-partnership fund is tax transparent and files no CT600) | 12 months after the end of the accounting period it covers | — | GOV.UK — Company Tax Returns (official) |
| United Kingdom | Corporation tax payment (companies that are not large) | companies (funds, managers, SPVs) (companies that are not large; large companies pay by quarterly instalments instead) | 9 months and 1 day after the end of the accounting period | — | GOV.UK — Pay your Corporation Tax bill (official) |
| United Kingdom | VAT Return and payment (quarterly) | companies (funds, managers, SPVs) (VAT-registered entities only) | one calendar month and 7 days after the end of the VAT accounting period (return and payment) | — | GOV.UK — Submit your VAT Return (official) |
The CRS/FATCA deadline spread — same obligation, a different date in almost every jurisdiction
| Reporting deadline (2026, for 2025 data) | Jurisdictions on this calendar |
|---|---|
| 31 March 2026 | Bermuda — FATCA only (Model 2 IGA: filed direct to the US IRS, not the local portal) |
| 31 May 2026 | UK · Singapore · BVI · Bermuda (CRS) |
| 30 June 2026 | Ireland · Luxembourg · Jersey · Guernsey · Austria · Switzerland · UAE |
| 31 July 2026 | Germany · Cayman |
| 15 September 2026 | Cayman — CRS Compliance Form |
| 30 September 2026 | BVI — CRS Additional Information Form · Bermuda — CRS compliance certification |
In practice: a fund group reporting across these jurisdictions runs several different CRS/FATCA dates for identical data — and some don't even use the same channel (Bermuda's Model-2 FATCA goes straight to the IRS, not the local portal). Map your entity list against this table before May, not in May.
To verify — tax
Obligations we could not pin to an official 2026 source — treat as open, not fact:
- Bermuda — FATCA report — filed directly to the US IRS (Model 2 IGA) via IDES; Bermuda does not set the date: Researched 2026-07 against primary sources; responsible-filer basis.. Best lead: regulator.
- Japan — J-REIT Distribution Reporting & Withholding Tax: NTA Withholding Tax Guide 2026 (https://www.nta.go.jp/publication/pamph/gensen/shikata_r08/pdf/15.pdf), VII.1: tax withheld "shall be paid by the 10th of the month following the month in which the income subject to withholding was paid. If the due date is a Saturday, Sunday, or holiday, the next business day shall be the due date." NTA Tax Answer No.2885: where Japan-source income is paid outside Japan but treated as paid in Japan, the due date is the last day of the following month. Each payment starts its own clock, so there is no annual date. To verify: the payment record for J-REIT (investment corporation) distributions — the NTA statutory-records list gives one month from payment for dividend payment records (No.3), but does not name investment-corporation distributions.. Best lead: National Tax Agency (Japan) — Withholding Tax (official).
- United States — PFIC Annual Information Statement to US investors (enables their QEF election and Form 8621): Renamed 2026-07-27: the row was 'Form 8621 PFIC/QEF Election & Reporting', which is the INVESTOR's filing, not the fund's. Treas. Reg. 1.1295-1(g)(1): "For each year of the PFIC ending in a taxable year of a shareholder to which the shareholder's section 1295 election applies, the PFIC must provide the shareholder with a PFIC Annual Information Statement." The duty sits on the fund (the PFIC), so the fund-vehicle audience stands; Form 8621 itself is filed by the US shareholder with its own return. The regulation sets no date for the statement, so this row stays undated and confidence uncertain. Treas. Reg. text: https://www.ecfr.gov/current/title-26/chapter-I/subchapter-A/part-1/subject-group-ECFR3d3ec1b2bc6e0b1/section-1.1295-1. Best lead: IRS official instructions (Form 8621) + Treas. Reg. 1.1295-1(g) (govinfo CFR 2025 edition).
Changelog
8 changes to the law and guidance · latest 2026-10-19
- 2026-10-19 — Corrected: Austria’s OeKB annual tax-data notification is due within seven months of the fund’s year end for domestic and foreign funds alike (FMV 2015 § 3(2)). Corrected: Germany sets no publication deadline for a public fund’s tax figures; the dated duty is a special investment fund’s declaration of its tax bases, due within eight months of its year end (§ 51(2) InvStG). Corrected: a Swiss fund’s annual report and accounts go to the ESTV within six months of the year end (VStV art. 32(2)), and its profit-tax return, where it owes one, has no federal date: the canton sets it. Corrected: Irish dividend withholding tax is filed and paid by the company that pays the distribution, by day 14 of the following month (Revenue).
- 2026-10-18 — Corrected: the Jersey annual confirmation statement is due on “the last day of February each year”, and it is filed by every company, foundation, limited liability company, limited liability partnership and limited partnership, not by companies only (JFSC Registry, annual confirmation).
- 2026-10-17 — Corrected: the Luxembourg corporate tax return deadline now cites the tax authority’s own notice; an eight-month Luxembourg VAT extension that no primary source states was removed. Corrected: the Luxembourg and Irish deadlines for a manager’s annual documents to the regulator run from each firm’s financial year end, not a fixed date (CSSF Circular 21/789; Central Bank UCITS Regulations 2026, S.I. 316/2026, reg. 97). Corrected: Jersey’s certified-fund accounts row is the filing with the JFSC, within seven months of the year end.
- 2026-09-23 — Cayman Islands: the CRS and FATCA reporting deadline moves for the 2026 reporting year. It is 31 July 2026 for the 2025 reporting year and 30 June 2027 for the 2026 reporting year, in the DITC’s own words: “Impacts on the Common Reporting Standard 2026 Reporting Year (30 June 2027 Filing Deadline)”. Separately, the DITC Portal closes to CRS XML submissions in early August 2026 for the move to XML Schema v3.0 and is expected to reopen in early 2027 — which the DITC states is not an extension of the 31 July 2026 deadline (DITC Updates Bulletin, posted June 2026).
- 2026-09-22 — Jersey: corrected. There is no standalone Jersey economic substance return. The substance questions are Section 7 of the corporate tax return, and that return is due “by midnight on 30 November of the following year” — so the substance deadline is the return deadline, and for the 2025 year of assessment it is 30 November 2026. This calendar previously carried a separate Jersey substance return due “within 12 months of the end of the accounting period”, which is not what Revenue Jersey states. Late filing is a £300 penalty, then £100 a month for up to nine months (Revenue Jersey corporate tax return guidance notes · Section 7 guidance).
- 2026-09-22 — British Virgin Islands: the ITA has extended the economic substance filing period until further notice for declarations with financial periods ending in June 2025 and December 2025, and temporarily disabled single filing so a registered agent must use bulk filing on the VIRRGIN platform. The underlying rule is unchanged: a declaration is due within 6 months of the end of the entity’s financial period (ITA notice, 13 July 2026 · ITA Rules on Economic Substance, §12.12 and §12.16).
- 2026-09-22 — Cayman Islands: restated. The Fund Annual Return and the audited financial statements are due “within six (6) months of the FYE” — a rule that runs off the fund’s own financial year end, not the fixed 30 June date this calendar previously carried; 30 June 2026 is the worked example for a 31 December year end. An extension can be requested from CIMA, with a fee, up to three months beyond the original deadline. The economic substance return is likewise a rule: “within twelve months after the last day of the end of each financial year” (CIMA notice · DITC Economic Substance Guidance, July 2022).
- 2026-09-22 — added: four obligations that were missing from this calendar. FBAR (FinCEN Form 114) — due 15 April 2026 for the 2025 calendar year, with an automatic extension to 15 October 2026 and no request needed. DAC6 — a reportable cross-border arrangement is disclosed within 30 days of the earliest of the three trigger events in Article 8ab(1), with a further report every three months for a marketable arrangement. BE-13 — due “no later than 45 days after the acquisition is completed, the new legal entity is established, or the expansion is begun”, and mandatory whether or not BEA makes contact. Form D — filed “within 15 days after the first sale of securities in the offering” (IRS FBAR · Directive (EU) 2018/822, Art. 8ab · BEA BE-13 filing instructions · SEC Form D).