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Tax filing deadlines by country

Every 2026-year return deadline in one calendar — grouped by month.

January · 4
  • Bulgaria30 April (from 10 January); 5% credit for e-filing by 31 March
  • South AfricaFor 2026/27: announced by the revenue service in mid-2027. (The 2026 season, covering the year ended 28 February 2026, ran to 23 October 2026 / 22 January 2027.)
  • South KoreaMay of the following year; employees settled via January year-end settlement
  • United Kingdom31 January online (31 October paper)
February · 4
  • Croatia28 February; most withholding is final so many never file
  • Germany31 July following the year (end of February of the second year with an adviser)
  • Japan16 February – 15 March; most employees settled by year-end adjustment
  • Poland30 April of the following year (window opens 15 February)
March · 12
  • Belize31 March 2027
  • Costa Rica15 March for the self-employed; employees settled by withholding
  • Ecuador10-28 March of the following year, by tax-number digit
  • Georgia31 March 2027 — the law says before 1 April (annual declaration, only where tax was not withheld at source)
  • IndonesiaEnd of March (third month after year-end)
  • Latvia1 March – 1 June (from 1 April if income exceeds EUR 105,300)
  • Panama15 March of the following year (1-month extension on request)
  • Slovakia31 March of the following year (extendable 3 months)
  • SwitzerlandEnd of March or April, canton-dependent; extensions routine
  • Thailand31 March of the following year on paper; electronic filing ran to 8 April in the 2026 season
  • TurkeyEnd of March; most wage earners and investors never file
  • Vietnam31 March via employer finalization; end of April if you file yourself
April · 19
  • Andorra30 September 2027 (window opens 1 April 2027)
  • Austria30 April paper / 30 June online (longer via tax advisers)
  • Canada30 April (15 June if self-employed; tax still due 30 April)
  • ChileApril of the following year; single-employer salaries need no return
  • Czech Republic1 April; 1 May electronic; 1 July with a tax adviser
  • El SalvadorApril (4 months after year-end); salary-only earners under USD 9,100 generally file nothing
  • Estonia30 April; tax due 1 October
  • FinlandPre-completed return; corrections due mid/late April
  • Luxembourg31 December of the following year (the filing window opens in early April)
  • Malaysia30 April (salary earners) or 30 June (business income) of the following year
  • Malta30 June of the assessment year, with provisional payments in April, August and December
  • Mexico30 April (no extensions)
  • Montenegro30 April; only income not settled by withholding needs a return
  • Norway30 April (pre-filled return); assessment by mid-October
  • Philippines15 April of the following year
  • Portugal1 April – 30 June, online
  • Singapore15 April (paper) / 18 April (online)
  • SpainEarly April – 30 June following the tax year
  • United States15 April (15 June if living abroad); 6-month extensions routine
May · 9
  • Denmark1 May generally for pre-filled corrections (extended to 20 May in the 2026 season) / 1 July self-assessed and business income
  • FranceLate May – early June online (date varies by region)
  • Hong KongWithin 1 month of the return issued in early May
  • Hungary20 May of the following year (prepopulated returns)
  • Lithuania1 May of the following year
  • Netherlands1 May following the tax year (extensions routine)
  • Romania25 May single tax return (pre-filled from 2025 income)
  • SloveniaTax office assesses by 31 May; passive income withheld at source
  • Sweden4 May of the assessment year (pre-filled return)
June · 4
  • ArgentinaJune of the following year, by tax-number digit; salary-only earners usually have no return
  • Australia31 October following the 30 June year-end (later via a tax agent)
  • BelgiumTypically 30 June paper / mid-July online in the assessment year — exact dates are set annually
  • UruguayJune to August of the following year; pay in 5 instalments to December
July · 3
  • Cyprus31 July of the following year (electronic)
  • Greece15 July of the following year
  • New Zealand7 July; most employees are auto-assessed
August · 1
  • ColombiaAugust to October of the following year, staggered by tax-number digits
September · 1
  • Italy2 November 2026 online this season — the statutory 31 October falls on a Saturday (30 September for pre-filled employee returns)
October · 2
Other · 6
  • BahrainNone — individuals file no income tax return
  • MonacoNo personal tax return exists
  • PeruFirst 3 months of the following year, staggered by tax-number digit
  • QatarNo personal tax return exists
  • Saudi ArabiaNo personal tax return exists
  • United Arab EmiratesNo personal tax return exists

Source: 2026 tax dataset · updated 2026-07-11 · rates are headline figures — see each country's tax guide for the full picture.

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