Foreign tax filing deadlines for US expats
The deadline for taxes in the United States is April 15 – but that is only half the picture for Americans abroad.
The same US expat filing rules that apply domestically follow you overseas, and most expats also owe a return in the country where they reside.
US citizens and resident aliens abroad must report all worldwide income and file a federal return regardless of where they live.
You can read more about why US citizens owe taxes no matter where they live – the US is one of only two countries that tax based on citizenship rather than residence.
Your country of residence sets its own filing calendar, and understanding when the income tax deadline falls locally matters just as much as knowing the US dates.
Some countries follow the same calendar year as the US, with deadlines between March and July. Others – the UK, Australia, India, New Zealand – run on a fiscal year that starts and ends months apart from the US cycle.
| Obligation | Standard deadline | Extension available? |
|---|---|---|
| US federal return – Form 1040 | April 15, 2026 | Yes – automatic to June 15; Form 4868 extends to October 15 |
| Foreign country return | Varies – see country tables below | Varies by country |
| FBAR – FinCEN Form 114 | April 15, 2026 | Automatic extension to October 15 |
The deadlines in this article apply to tax year 2025, filed during the 2026 filing season.
You can request an additional US filing extension to October 15 using Form 4868, though interest on unpaid tax still runs from April 15.
What are the US tax deadlines for expats?
The American tax deadline is April 15, but expats get built-in extra time.
If you live and work outside the United States on April 15, the IRS gives you an automatic two-month extension to June 15 – no form required.
Filing Form 4868 extends the deadline further to October 15.
For tax year 2025, taxes are due in the USA by April 15 for payment and June 15 for filing – but these two dates serve different purposes for expats.
| Deadline type | Date | What it means for expats |
|---|---|---|
| Standard filing deadline | April 15, 2026 | Applies to all US taxpayers; expats qualify for automatic extension |
| Automatic expat extension | June 15, 2026 | No form needed – attach a statement to your return explaining you qualified |
| Extended deadline – Form 4868 | October 15, 2026 | Must file Form 4868 by June 15 |
| Tax payment deadline | April 15, 2026 | Extensions do not extend the payment deadline |
The income tax due date for 2026 is April 15 – that date covers tax year 2025 income. If you owe estimated tax payments, those follow a separate quarterly schedule.
The 3 key takeaways for expats:
- The June 15 extension is automatic but does not waive interest on unpaid tax from April 15
- Form 4868 extends filing to October 15 but still requires payment by April 15
- The FBAR follows its own calendar – due April 15 with an automatic extension to October 15, no penalty if filed by that date
Filing vs. payment: When do you pay income tax?
The deadline for an income tax return and the deadline for paying what you owe are two different dates. This distinction matters most for expats using the June 15 or October 15 extension – the IRS extends the time to file, not the time to pay.
Expats owe payment by April 15 regardless of filing extensions – the late filing penalty runs at 5% per month, while the late payment penalty is 0.5% per month.
| Filing | Payment | |
|---|---|---|
| Standard date | April 15 | April 15 |
| Expat auto-extension | June 15 | Still April 15 |
| Form 4868 extension | October 15 | Still April 15 |
| Late filing penalty | 5% of unpaid tax per month, up to 25% | N/A |
| Late payment penalty | N/A | 0.5% of unpaid tax per month, up to 25% |
| Interest | N/A | Accrues from April 15 on any unpaid balance |
TFX client scenario: late payment from London
- US marketing director in London filed her return September 30 under the October 15 extension
- Owed $4,200 in federal tax but did not pay until September 30
- IRS charged about $126 in late-payment penalty (0.5% per month for 6 months – the IRS counts any partial month as a full month) plus roughly $127 in interest at the rates in effect for 2026 – adding about $253 to her bill
If you cannot pay the full amount by April 15, file anyway.
The late filing penalty is 10 times higher than the late payment penalty.
Paying even a partial amount reduces the interest and penalties that accrue. If you cannot cover the full balance, you still have options for paying your tax bill late.
What are the local tax deadlines by country?
Income tax filing deadlines vary widely – from March in Japan and Switzerland to January of the following year in the UK. Whether other countries require you to file taxes depends on your residency status, income source, and local tax law.
The master table below shows the deadline for income tax in 30 countries where US expats commonly live. Each entry covers the standard filing deadline, payment due date, and whether extensions are available.
Most countries with a calendar tax year set their filing deadline between April and July. Countries with a fiscal year – the UK, Australia, India, Hong Kong, New Zealand, South Africa – follow their own schedules.
The Americas
Canada and Mexico share April 30 deadlines, while Brazil files by late May.
| Country | Tax year | Filing deadline | Payment deadline | Extensions? |
|---|---|---|---|---|
| Canada | Calendar | April 30; self-employed June 15 | April 30 for all | No formal extension |
| Mexico | Calendar | April 30 | April 30 | SAT may extend in specific years |
| Brazil | Calendar | May 29 | May 29 (first installment or lump sum); later installments due the last business day of each following month | No standard extension |
Europe
European deadlines range from late April to January of the following year. UK tax rates are high enough that most US expats in the UK owe little or no additional US federal tax after claiming the foreign tax credit.
| Country | Tax year | Filing deadline | Payment deadline | Extensions? |
|---|---|---|---|---|
| United Kingdom | April 6–April 5 | Paper: Oct 31; Online: Jan 31, 2027 | Jan 31, 2027 | No automatic; £100 late penalty |
| France | Calendar | Paper: May 19; Online: May 21–June 4 by zone | Pay-as-you-earn; balance Sept/Oct | No |
| Germany | Calendar | July 31 self-filing; March 1, 2027 with advisor | 1 month after assessment | Via tax advisor or request |
| Spain | Calendar | June 30; direct debit June 25 | June 30 or 60/40 split in Nov | No – fixed campaign dates |
| Netherlands | Calendar | May 1 | 6 weeks after assessment | Yes – typically to September 1 |
| Sweden | Calendar | May 4 | Preliminary withholding | No |
| Switzerland | Calendar | March 15–April 30 by canton | Varies by canton | Widely available |
| Ireland | Calendar | Oct 31 paper; ROS mid-Nov | Same as filing | ROS extension is primary mechanism |
| Italy | Calendar | Modello 730: Sept 30; Redditi PF: Nov 2, 2026 (the ordinary Oct 31 date is pushed back because it falls on a Saturday, with Nov 1 a holiday) | June 30 or July 30 +0.40% | 30-day deferral with surcharge |
| Portugal | Calendar | June 30 | August 31 | No – 3-month filing window |
| Belgium | Calendar | Late June–mid-October by return type | 2 months after assessment | Set annually by royal decree |
| Denmark | Calendar | May 1; self-employed July 1 | Via withholding | Self-employed: up to 4 months |
| Norway | Calendar | April 30 (wage earners/pensioners); May 31 (self-employed) | Aug + Oct installments | Up to 1 month on request |
Asia and the Pacific
Asian deadlines cluster between March and June, but five countries use fiscal years that fall out of sync with the US cycle.
| Country | Tax year | Filing deadline | Payment deadline | Extensions? |
|---|---|---|---|---|
| Japan | Calendar | March 16, 2026 | March 16 | No |
| China | Calendar | June 30 | June 30 | No |
| Hong Kong | April 1–March 31 | ~June 2026; e-filers +1 month | Jan + April installments | 1–2 months routinely granted |
| Singapore | Calendar | April 15 paper; April 18 e-filing | Per Notice of Assessment | On request to IRAS |
| Australia | July 1–June 30 | October 31, 2026 (moves to Monday, November 2, 2026, since Oct 31 falls on a Saturday) | November 23, 2026 for self-lodgers who lodge by October 31 (21 days after the lodgment due date, moved from the 21st since that date falls on a Saturday) | Via tax agent – up to May 2027 |
| New Zealand | April 1–March 31 | July 7 | Feb 8, 2027 terminal tax (moves from Feb 7 since that date falls on a Sunday) | Via tax agent or request |
| India | April 1–March 31 | July 31 non-audit; Oct 31 audit | Quarterly advance tax | CBDT sometimes extends |
| South Korea | Calendar | May 31 | May 31 | No |
| Thailand | Calendar | March 31; e-filing ~April 8 | March 31 | E-filing 8-day extension only |
| Philippines | Calendar | April 15 (extended to May 15, 2026 for tax year 2025 returns per BIR RMC No. 30-2026) | April 15 (extended to May 15, 2026 for tax year 2025 returns per BIR RMC No. 30-2026) | By presidential proclamation |
Middle East and Africa
The UAE and Saudi Arabia have no individual income tax. Israel and South Africa follow unique calendars with variable deadlines.
| Country | Tax year | Filing deadline | Payment deadline | Extensions? |
|---|---|---|---|---|
| UAE | N/A | No individual income tax | N/A | N/A |
| Saudi Arabia | N/A | No individual income tax on employment | N/A | N/A |
| Israel | Calendar | April 30; extensions common | Same as filing | Yes – blanket postponements in recent years |
| South Africa | March 1–Feb 28 | Non-provisional: ~July–Oct; Provisional: ~July–Jan | Provisional: Aug + Feb | Fixed SARS filing seasons |
Dates reflect the 2026 filing season for tax year 2025 income. Belgium and South Africa set exact dates annually – confirm with the local tax authority before filing. The Philippines extended its 2025 deadline to May 15 per BIR RMC No. 30-2026 – this may revert to April 15 in future years.
The Americas
Canada and Mexico both follow a calendar tax year with April 30 filing deadlines – just two weeks after the US standard deadline. Brazil’s deadline typically falls in late May.
All three countries require payment by the same date as filing – unlike the US, there is no split between filing and payment deadlines.
| Country | Local deadline | Before or after US June 15? | Payment timing |
|---|---|---|---|
| Canada | April 30 | Before | April 30 for all filers |
| Mexico | April 30 | Before | Same as filing date |
| Brazil | May 29 | Before | May 29 (first installment or lump sum); later installments due the last business day of each following month |
TFX client scenario: US–Canada dual filing
- US software engineer in Toronto filed his US return by April 15 to avoid interest on his $3,800 balance
- Canadian return was due April 30 – he claimed a foreign tax credit on his US return for provincial and federal Canadian taxes paid under the US-Canada tax treaty
- Result: both returns filed within a 2-week window; FTC reduced his US liability
In Canada, self-employed filers get until June 15 to file – but any tax owed is still due April 30. This mirrors the US approach of separating filing extensions from payment deadlines.
Mexico requires residents to file by April 30 with no standard extension. The US-Mexico tax treaty can reduce withholding on cross-border income, but it does not change the local filing deadline.
The SAT has occasionally extended deadlines in specific years, but this is not guaranteed.
Europe
European filing deadlines range from late April in Norway to January 31 of the following year in the UK. The date to pay income tax varies just as widely – the UK collects in January and July installments, while Germany bills one month after assessment.
| Country | Filing deadline | Tax-year basis | Key difference from US |
|---|---|---|---|
| UK | Online: Jan 31, 2027 | April 6–April 5 | Fiscal year; payments on account Jan 31 + July 31 |
| France | Online: May 21–June 4 | Calendar | Zone-based online deadlines |
| Germany | July 31 self; March 1, 2027 advisor | Calendar | Using a tax advisor extends the deadline by about 7 months (Abgabenordnung §149(3)) |
| Spain | June 30 | Calendar | Fixed “campaign” period; no extensions |
| Netherlands | May 1 | Calendar | Extension to September 1 available |
| Italy | Sept 30–Nov 2, 2026 (Oct 31 falls on a Saturday, with Nov 1 a holiday) | Calendar | Two return types with different deadlines |
| Switzerland | March 15–April 30 | Calendar | Varies by canton; extensions widely available |
TFX client scenario: US–Germany dual filing
- US consultant in Berlin filed her US return by June 15 using the automatic expat extension
- Filed her German return by the July 31 self-filing deadline – see the full German tax rates and filing guide for US expats
- Claimed the foreign tax credit on her US return for income taxes paid to the Finanzamt
The UK tax year runs April 6 to April 5 – completely out of sync with the US calendar year. The full guide to US expat taxes in the UK covers how the two systems interact.
A US expat in London files a UK return covering April 2025 – April 2026 income by January 31, 2027, while their US return covers January – December 2025 income.
Tracking which income falls in which tax year is essential for reporting the timing of foreign income and taxes paid correctly on your US return.
Germany offers one of the longest extensions in Europe. Hiring a Steuerberater – a registered tax advisor – automatically extends the filing deadline from July 31, 2026 to March 1, 2027.
Asia and the Pacific
Asian and Pacific countries split between calendar-year and fiscal-year systems. Japan and South Korea file by spring, while Australia and New Zealand follow fiscal years ending in June and March, respectively.
Singapore’s April 15 paper deadline is identical to the US standard deadline, and South Korea’s May 31 falls within the June 15 expat extension window.
| Country | Tax year | Filing deadline | Closest to US deadline? |
|---|---|---|---|
| Japan | Calendar | March 16 | Earlier – 1 month before US standard |
| China | Calendar | June 30 | Later – aligns with October extension window |
| Singapore | Calendar | April 15–18 | Same window as US standard |
| South Korea | Calendar | May 31 | Within June 15 expat extension |
| Thailand | Calendar | March 31 | Earlier |
| Australia | July–June | October 31, 2026 (moves to Monday, November 2, 2026, since Oct 31 falls on a Saturday) | Offset by 6 months |
| New Zealand | April–March | July 7 | Offset by 3 months |
| Hong Kong | April–March | ~June | Offset |
| India | April–March | July 31 | Offset |
Japan’s March 15 deadline – shifted to March 16 in 2026 because March 15 falls on a Sunday – is one of the earliest in this region.
The full guide to taxes in Japan for US expats covers rates, forms, and filing requirements.
If you live in Japan, your local return is due a full month before the US standard deadline.
Australia’s October 31, 2026 self-lodgement deadline (moves to Monday, November 2, 2026, since Oct 31 falls on a Saturday) applies to the fiscal year ending June 30, 2026. Using a registered tax agent can extend this to May 2027.
The full guide to taxes in Australia for US expats covers rates and the dual-filing process.
Middle East and Africa
The UAE and Saudi Arabia do not impose individual income tax on employment income. US expats in these countries still file US federal returns but have no local return to prepare – and no foreign taxes to claim as credits.
Dubai and UAE expats benefit from the Foreign Earned Income Exclusion – up to $130,000 (2025) – but cannot claim the foreign tax credit because they pay no foreign income tax. The same applies to Saudi Arabia.
If you live in a no-tax country, you can read more about choosing between the FEIE and the Foreign Tax Credit.
In short, the exclusion is your only option because there is no foreign tax to credit.
Israel follows a calendar tax year with an April 30 filing deadline. The guide to taxes in Israel for US expats covers the full filing process.
In recent years, the Israel Tax Authority has issued blanket deadline postponements due to the security situation – confirm the current extended date before filing.
South Africa uses a March 1 – February 28 tax year and a fixed filing season set by SARS each year. Non-provisional taxpayers typically file between July and October, while provisional taxpayers file between July and January.
The 4 things to watch in this region:
- UAE and Saudi Arabia have no personal income tax – the FEIE still applies, but there is no foreign tax credit to claim
- Israel deadlines may shift due to government-issued blanket extensions
- South Africa’s SARS filing seasons are announced annually – check before planning your timeline
- Several Gulf states have introduced corporate taxes in recent years, but individual employment income remains untaxed
Countries with April/May deadlines
The income tax return filing date in 11 countries falls between April 1 and May 31 for calendar-year 2025 income. Knowing when personal tax is due in your country helps you plan the filing sequence – all of these local deadlines fall before or near the US June 15 automatic expat extension.
The 11 countries with spring filing windows:
- Canada – April 30
- Mexico – April 30
- Norway – April 30 (wage earners/pensioners); May 31 for self-employed
- Israel – April 30
- Singapore – April 15 paper; April 18 e-filing
- Philippines – April 15, extended to May 15, 2026 for tax year 2025 returns (BIR RMC No. 30-2026)
- Netherlands – May 1
- Denmark – May 1
- Sweden – May 4
- Brazil – May 29
- South Korea – May 31
Payment may still be due earlier than your US filing deadline.
France is a borderline case – paper returns are due May 19, but online deadlines extend to June 4 depending on your zone. US expats in France face French tax rates and filing rules that differ sharply from the US system.
Countries with different tax years
Six countries in the tables above use a fiscal year instead of a calendar year. The local filing deadline rarely lines up with the US April 15 deadline – determining when income taxes are due on each side is the first step in claiming the foreign tax credit correctly.
When the US and foreign tax years don’t align, the foreign taxes you pay may straddle two US tax years – affecting which year you claim the credit.
| Country | Local tax year | US tax year overlap | Filing mismatch |
|---|---|---|---|
| United Kingdom | April 6, 2025 – April 5, 2026 | Straddles US tax year 2025 + 2026 | UK return due Jan 31, 2027 – after US tax year 2025 return |
| Australia | July 1, 2025 – June 30, 2026 | Straddles US tax year 2025 + 2026 | Australian return due Oct 31, 2026 (moves to Monday, Nov 2, 2026, since Oct 31 falls on a Saturday) |
| New Zealand | April 1, 2025 – March 31, 2026 | Straddles US tax year 2025 + 2026 | NZ return due July 7, 2026 |
| India | April 1, 2025 – March 31, 2026 | Straddles US tax year 2025 + 2026 | Indian return due July 31, 2026 |
| Hong Kong | April 1, 2025 – March 31, 2026 | Straddles US tax year 2025 + 2026 | HK return due ~June 2026 |
| South Africa | March 1, 2025 – Feb 28, 2026 | Straddles US tax year 2025 + 2026 | SA return due July – Oct 2026 |
TFX client scenario: US–Australia fiscal year mismatch
- US teacher in Sydney paid Australian tax on income earned July 2025 through June 2026
- Her US return for calendar year 2025 was due April 15, 2026 – six months before her Australian return
- She filed a provisional foreign tax credit on her US return and amended it after receiving her Australian tax assessment
Mismatched fiscal years often require either a provisional credit or an amended return.
The 3 key points for mismatched tax years:
- Foreign taxes paid during a fiscal year that straddles two US calendar years must be allocated to the correct US year
- You can elect to claim the credit on an accrual basis on Form 1116 to match foreign income with the year it was earned
- Filing the US return first and amending after the foreign assessment is the most common approach for expats in fiscal-year countries
How do I handle overlapping tax seasons?
Preparation order matters most when tax returns are due in both the US and your country of residence within weeks of each other. The checklist below helps you manage both returns without missing a deadline or leaving credits on the table.
US expats in calendar-year countries typically face a 2–4 month window where both the US and local returns are due – planning the sequence avoids missed deadlines and maximizes the foreign tax credit.
| Scenario | US deadline | Local deadline | Action |
|---|---|---|---|
| Same season – e.g., Canada | June 15 | April 30 | File and pay local return first; claim FTC on US return |
| Offset season – e.g., Australia | June 15 | October 31, 2026 (moves to Monday, November 2, 2026, since Oct 31 falls on a Saturday) | File US return with estimated FTC; amend after local assessment |
| Local first – e.g., Japan | June 15 | March 16 | Local return completed before US filing season opens |
TFX client scenario: US–Canada overlapping deadlines
- US financial analyst in Toronto owed $12,400 in Canadian federal and provincial tax for 2025
- Paid Canada by April 30, then filed his US return by June 15
- Claimed the full Canadian tax as a foreign tax credit, reducing his US federal liability to $0
A 3-step checklist for overlapping tax seasons:
- Identify which deadline comes first – your US or local return
- If the local return is first, file and pay it, then use those figures for your US foreign tax credit
- If the US return is first, estimate the foreign tax credit and plan to amend after your local return is assessed
Year-end tax planning can help you anticipate which credits and exclusions to claim before either deadline arrives.
Are there grace periods or extensions for tax deadlines?
A tax grace period is extra time to file or pay without immediate penalty. In the US, the automatic two-month expat extension functions as a built-in grace period for filing – but it does not extend the payment deadline or stop interest from accruing.
Extensions delay filing deadlines – they do not erase penalties or interest. When you owe income tax, interest runs from April 15 regardless of any extension.
| Type | How it works | Penalty protection? |
|---|---|---|
| Automatic expat extension | 2 months to June 15 – no form needed | Filing: yes. Payment: no – interest runs from April 15 |
| Form 4868 extension | Filing extended to October 15 | Filing: yes. Payment: no |
| Late filing – no extension | Return filed after applicable deadline | 5% penalty per month on unpaid tax, up to 25% |
| Late payment – no balance due | Tax owed but not paid by April 15 | 0.5% per month plus interest |
Many foreign countries offer their own extensions.
Germany extends the deadline by about 7 months when you hire a registered tax advisor. The Netherlands allows extensions to September 1. Australia’s registered tax agents can extend to May 2027.
Others – Spain, Japan, South Korea – offer no extensions at all.
If you have unfiled returns from prior years, the Streamlined Filing Compliance Procedures let you catch up on 3 years of tax returns and 6 years of FBARs.
Filing late carries penalties that increase every month, so catching up sooner reduces the total cost.
Penalties may be waived entirely if the failure was non-willful. You can read more about FBAR penalties and how they are calculated – non-willful violations can reach $16,536 per unfiled report for tax year 2025, not per account.
Whether you need a simple extension or a multi-year catch-up, the key principle is the same: file before the deadline even if you cannot pay in full.
The filing penalty is 10 times steeper than the payment penalty, so getting the return in on time is always the priority.
FAQ
The standard US filing deadline is April 15. Expats living and working abroad on that date get an automatic extension to June 15 – no form required.
Filing Form 4868 extends the deadline to October 15. The date income taxes are due for payment is always April 15 regardless of any extension – interest accrues from that date on any unpaid balance.
A filing extension moves the date your return is due – not the date your tax is due. For US expats, tax owed is due by April 15, the original deadline. The June 15 automatic extension and the October 15 Form 4868 extension both apply only to filing. Pay by April 15 to avoid the 0.5%-per-month late payment penalty and interest.
Most countries require residents to file an annual income tax return, though the rules vary. Some countries – the UK, France, Australia – require returns from anyone with taxable income above a threshold. Others – the UAE and Saudi Arabia – have no individual income tax at all.
Your filing obligation depends on your residency status and income sources in that country.
A grace period is extra time to file or pay without immediate penalty.
For US expats, the automatic two-month extension to June 15 is effectively a filing grace period.
Some countries build in similar windows – Portugal allows a 3-month filing period from April to June, and Hong Kong routinely grants 1–2 month extensions. None of these grace periods eliminate interest on late tax payments.
When your US and local deadlines fall near each other, file and pay the local return first if its deadline comes first.
Use those foreign tax figures to claim the foreign tax credit on your US return. If the US return is due first, estimate the credit and amend later. Tracking both deadlines and the order they fall in determines whether you need to file an amended return.
Yes. Countries like the UK, Australia, India, and New Zealand use fiscal years that do not align with the US calendar year.
Foreign income and taxes paid during a fiscal year that straddles two US tax years must be allocated to the correct year. You can elect accrual-basis reporting on Form 1116 to match foreign income with the year it was earned.
No. An extension of time to file does not extend the time to pay. If you owe US tax and pay after April 15, interest and the late-payment penalty – 0.5% per month – accrue from the original due date. The extension prevents only the late-filing penalty, which is a separate and steeper charge at 5% per month up to 25%.
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