The June 15 tax deadline for US expats: what you need to know

The June 15 tax deadline is the automatic two-month extension granted to US citizens and resident aliens living and working outside the United States and Puerto Rico on April 15.

You do not need to file any form to claim it – simply attach a brief written statement to your Form 1040 when you file.

This extension applies only to the filing deadline. Any tax you owe was still due on April 15, 2026, for tax year 2025 returns, and interest accrues on unpaid balances from that date.

The same rule applies every year. For tax year 2026 returns filed in 2027, the automatic extension deadline is June 15, 2027.

The June 15 extension is one of the most common filing provisions for Americans abroad, yet it is also one of the most misunderstood. The sections below cover who qualifies, how to claim it, what happens if you miss it, and how it connects to other expat tax obligations.

Who qualifies for the June 15 expat tax deadline?

You qualify for the June 15 deadline if you’re a US citizen or resident alien and, on April 15, your tax home and main place of business or post of duty are outside the United States and Puerto Rico – or you’re serving in the military outside the United States and Puerto Rico.

You don’t need to pass the bona fide residence test or the physical presence test for this extension; those tests apply to the Foreign Earned Income Exclusion

The IRS June 15 deadline applies when both of the following are true on the regular April 15 due date:

• You are living outside the United States and Puerto Rico, and your main place of business or post of duty is outside the United States and Puerto Rico.
• You are a US citizen or resident alien – including green card holders.

Military personnel on active duty outside the United States also qualify for the automatic extension.

The qualifying conditions are outlined in IRS Publication 54 and on the IRS’s automatic 2-month extension page.

You do not need to meet the bona fide residence test or the physical presence test to get the two-month extension – those tests determine whether you qualify for the Foreign Earned Income Exclusion.

The June 15 extension has its own, simpler criteria based on your location and tax home on April 15.

See our guide to the bona fide residence test vs. physical presence test for a detailed comparison of both qualification routes for the FEIE.

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June 15 vs April 15: How the expat deadline differs

Unlike the April 15 deadline, the June 15 extension is automatic – qualifying expats do not need to file Form 4868 to receive it, but interest on any unpaid tax still runs from April 15.

The tax deadline June 15 applies only to filing – it does not extend the time to pay any balance owed.

 

The April 15 deadline is both a filing and payment date. The June 15 deadline separates the two: you get extra time to file, but the IRS still expects payment by April 15.

If you owe tax and cannot pay by April 15, filing an estimate and paying what you can reduces the interest and penalty charges that build up between April and your actual filing date.

 

See our guide on paying your US tax liability while living overseas for step-by-step payment instructions from abroad.

What happens if you miss the June 15 deadline?

Missing the June 15 deadline without requesting a further extension can trigger a failure-to-file penalty, a failure-to-pay penalty, and ongoing interest charges on any unpaid balance.

For the June 15 deadline, taxes owed are still due by April 15, and interest accrues from that date regardless of when you file. If you also miss the June 15 filing deadline without requesting Form 4868, three separate charges apply:

• Failure-to-file penalty: 5% of the unpaid tax for each month or partial month the return is late, up to a maximum of 25%.
• Failure-to-pay penalty: 0.5% of the unpaid tax for each month or partial month the balance remains unpaid, up to a maximum of 25%.
• Interest: Compounds daily at the federal short-term rate plus three percentage points, running from April 15.

When both penalties apply in the same month, the failure-to-file penalty is reduced by the failure-to-pay amount – resulting in a combined 5% per month for the first five months.

The IRS may waive penalties if you can show reasonable cause for filing late. Reasonable cause includes situations like serious illness, natural disaster, or reliance on incorrect professional advice.

If you missed the June 15, 2026 deadline, the October 15, 2026 extension is still available if you filed Form 4868 in time. If not, file as soon as possible. The failure-to-file penalty is ten times steeper than the failure-to-pay penalty, so getting the return in – even without full payment – limits the damage.

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Extending beyond June 15: The October deadline option

Expats who need more time beyond June 15 can file Form 4868 to receive an additional extension, pushing the filing deadline to October 15 – but this does not extend the time to pay any tax owed.

The June 15 tax filing deadline is the starting point for requesting further extensions.

File Form 4868 before June 15 to move your deadline to October 15.

Three things to know about the October extension:

• What Form 4868 does: Extends your filing deadline from June 15 to October 15, 2026, for tax year 2025 returns.
• What it does not do: Extend the time to pay. Interest and the failure-to-pay penalty continue to accrue on any balance unpaid since April 15.
• How to file it: Electronically through IRS Free File, a tax professional, or by mailing the paper form. Electronic filing is generally faster and gives you an electronic acknowledgment that the IRS received your request.

Special December 15 extension for expats in exceptional circumstances

A December 15 extension is available only by written IRS request and is granted at the agency’s discretion, making it a last resort for expats in truly exceptional circumstances.

Expats who still cannot file by October 15 may request an additional two-month extension to December 15 by sending a letter to the IRS before October 15. This is not an automatic extension – the IRS evaluates each request individually and grants it only when circumstances justify the delay.

IRS Publication 54 describes the process. The letter must explain why you need the additional time. Common qualifying reasons include extended illness, loss of records due to a natural disaster, or ongoing complications with foreign tax filings that affect your US return.

This extension is not available to anyone who has an approved Form 2350 extension for meeting the bona fide residence test or physical presence test.

The bona fide residence test and the June 15 deadline

The bona fide residence test requires you to have been a bona fide resident of a foreign country for an uninterrupted period that includes an entire tax year. This test determines eligibility for the Foreign Earned Income Exclusion – not the June 15 deadline, which has its own separate qualifying conditions based on your tax home.

Four key factors the IRS considers:

• Intent to remain abroad: Long-term leases, permanent employment contracts, and family relocation all support your case.
• Nature of the stay: A genuine residence – not a vacation or temporary assignment – in a single foreign country.
• Visa or residency status: A work permit, permanent residency, or long-term visa strengthens your claim. A tourist visa weakens it.
• Ties to the foreign country: Local bank accounts, foreign tax registration, community involvement, and enrollment of dependents in local schools.

Meeting the bona fide residence test also supports your eligibility for the Foreign Earned Income Exclusion, which for tax year 2025 excludes up to $130,000 of qualifying foreign earned income.

Form 2555 is required to claim the exclusion.

See our bona fide residence test guide for a full explanation of each qualifying factor.

The physical presence test and the June 15 deadline

Under the physical presence test, you must be physically present in a foreign country or countries for at least 330 full days during any 12-month period to qualify for the Foreign Earned Income Exclusion. This test does not determine eligibility for the June 15 deadline, which has its own separate qualifying conditions based on your tax home.

A “full day” means a complete 24-hour period, midnight to midnight, spent in a foreign country. Partial days – including your day of departure from the US and your day of arrival back – do not count.

Based on a common TFX client scenario: A US marketing consultant left Houston on February 10, 2025, and worked remotely from Barcelona through the end of the year. She returned to the US for 15 days in July to visit family. Her qualifying days from February 10 through December 31: approximately 310 days. By extending her 12-month window into mid-to-late January 2026, she reached 330 qualifying days and claimed a prorated FEIE on her 2025 return.

The 12-month period does not need to align with the calendar year. You can choose any consecutive 12-month window that gives you 330 qualifying days and overlaps with the tax year you are filing for.

Form 2555 is required to claim the exclusion under either test.

See our physical presence test guide for the full day-counting rules and worked examples.

Foreign Earned Income Exclusion and the June 15 deadline

Qualifying for the June 15 deadline and qualifying for the Foreign Earned Income Exclusion are separate questions. The June 15 deadline depends only on your tax home being outside the United States and Puerto Rico on April 15.

The Foreign Earned Income Exclusion additionally requires passing the bona fide residence test or the physical presence test.

The June 15 income tax deadline extends only the time to file – any tax owed is still due April 15, and interest accrues from that date. The FEIE, claimed on Form 2555, can reduce or eliminate the income tax itself.

Three key facts about the FEIE for tax year 2025:

• Claimed on Form 2555, filed with your Form 1040. The election is not automatic – you must file the form each year you want the exclusion.
• The exclusion amount for tax year 2025 is $130,000 per qualifying person. For tax year 2026, the amount increases to $132,900.
• The deadline to elect the FEIE can be extended. If you expect to meet the bona fide residence test or the physical presence test after your filing deadline, file Form 2350 by that deadline – April 15, or June 15 if you qualify for the automatic extension for living abroad – to request more time. Form 2350 must be filed on or before your regular deadline, not after it.

 

See our FEIE vs. Foreign Tax Credit comparison to determine which approach saves more for your situation.

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FBAR deadline: Does June 15 apply to foreign bank account reports?

The FBAR – FinCEN Form 114 – has its own deadline of April 15 with an automatic extension to October 15. The June 15 expat filing deadline does not apply to FBAR.

The June 15 IRS deadline covers your federal income tax return on Form 1040. The FBAR is a separate filing with a separate schedule:

• FBAR due date: April 15, 2026, for tax year 2025 accounts.
• Automatic extension: October 15, 2026 – no form or request required.
• Filed separately through FinCEN, not the IRS. The FBAR is submitted electronically through the BSA E-Filing System, not attached to your tax return.

 

See our detailed FBAR guide for filing instructions.

State tax deadlines for expats: Does June 15 apply?

The June 15 automatic extension applies only to your federal Form 1040 – state tax deadlines vary by state, and most do not automatically grant expats the same two-month extension.

Some states have no income tax – Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. If your last state of domicile was one of these, you likely have no state return to file.

For states that do impose income tax, check the filing deadline and extension rules for your last state of domicile. States like California and New York may still consider you a resident for tax purposes if you maintain ties such as property, voter registration, or a driver’s license.

Self-employed expats and the June 15 deadline: What you need to know

Self-employed US expats qualify for the June 15 filing deadline but must still pay self-employment tax on net earnings from self-employment, even if the Foreign Earned Income Exclusion eliminates their income tax liability.

The FEIE reduces income tax. Self-employment tax – 15.3% for tax year 2025, covering Social Security at 12.4% up to the $176,100 wage base and Medicare at 2.9% with no cap – is a separate calculation on Schedule SE that the FEIE does not reduce.

Four things self-employed expats should know about the June 15 deadline:

• Self-employment tax still applies. If your net self-employment earnings exceed $400 for the year, you owe SE tax regardless of the FEIE.
• Estimated quarterly payments may be required. If you expect to owe $1,000 or more after subtracting withholding and credits, estimated payments on Form 1040-ES help you avoid an underpayment penalty.
• Form 1040 Schedule SE calculates the tax. It is filed with your return on or before the June 15 deadline – or October 15 if you file Form 4868.
• Totalization agreements may reduce SE tax. If you work in a country that has a totalization agreement with the US and you pay into that country’s social security system, you may be exempt from US self-employment tax. You need a Certificate of Coverage from the foreign country to claim the exemption

Resident aliens abroad: Does the June 15 deadline apply to you?

Resident aliens – including green card holders – who live and work outside the United States qualify for the same automatic June 15 extension as US citizens, provided their tax home is in a foreign country.

The filing requirements are the same: resident aliens report worldwide income on Form 1040, not Form 1040-NR. You must attach a statement to your return explaining that you were living and working outside the US on the April 15 due date.

Three points that distinguish resident aliens from other filers:

• Green card holders are resident aliens for as long as the card is valid – even if they live abroad full-time. Filing obligations continue until the card is formally surrendered via Form I-407.
• The substantial presence test is separate. It determines whether a foreign national without a green card is treated as a resident alien for tax purposes. Do not confuse it with the physical presence test used for the FEIE.
• Form 1040 applies, not Form 1040-NR. Resident aliens file on the same form as US citizens, with the same deadlines and extension options.

See our guide to resident and nonresident alien tax rules for a full breakdown of who files which form.

Common mistakes expats make with the June 15 deadline

The single most costly mistake expats make is assuming the June 15 deadline also extends the time to pay – it does not, and interest begins accruing on unpaid tax from April 15.

Five mistakes that come up repeatedly in our practice:

1. Assuming June 15 extends the payment deadline. It does not. The June 15 extension covers filing only. Any tax owed was due April 15, and both interest and the failure-to-pay penalty accrue from that date.
2. Forgetting that interest accrues from April 15. Even if you file on time by June 15, you will owe interest on any balance not paid by April 15. The interest rate compounds daily at the federal short-term rate plus three percentage points.
3. Confusing the FBAR deadline with the income tax deadline. The FBAR – FinCEN Form 114 – has its own April 15 deadline with an automatic extension to October 15. It is filed separately through FinCEN, not attached to your Form 1040.
4. Failing to attach the required statement to the return. The IRS expects a brief written statement explaining that you were living and working abroad on April 15. Without it, the IRS may not apply the automatic extension.
5. Missing the June 15 deadline and not requesting a further extension. If you cannot file by June 15, filing Form 4868 before that date extends your deadline to October 15. Missing both dates triggers the failure-to-file penalty.

See our case study on how the FEIE can be denied for a case study showing the consequences of documentation errors.

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June 15 deadline for prior-year unfiled returns

Expats with unfiled returns from prior years cannot use the June 15 deadline retroactively – but the IRS Streamlined Filing Compliance Procedures offer a penalty-free path to catch up on multiple years of unfiled returns.

The June 15 automatic extension applies only to the current tax year return. It does not reopen filing deadlines for any year that has already passed.

If you have missed returns from prior years, three facts about the Streamlined Procedures are worth knowing:

• Who qualifies: US persons whose failure to file was non-willful – meaning it happened because of a misunderstanding, oversight, or honest mistake, not intentional evasion.
• What years are covered: Three years of delinquent tax returns and six years of delinquent FBARs.
• Penalty relief available: The Streamlined Foreign Offshore Procedures carry a 0% penalty for qualifying expats who meet the non-residency test – 330 full days outside the US in at least one of the most recent three tax years, with no US abode maintained during that period.

June 15 deadline checklist for US expats

Use this seven-step checklist to confirm you meet every June 15 obligation without missing a payment or form.

1. Confirm your tax home is outside the US. Your main place of business or employment must be in a foreign country on April 15 of the filing year.
2. Verify you meet the bona fide residence or physical presence test. These tests determine FEIE eligibility – you do not need to pass them for the June 15 extension itself, but they affect the exclusions you can claim.
3. Estimate your tax liability and pay by April 15 to stop interest. Even a partial payment reduces interest and penalty charges.
4. Gather your foreign income documents. Foreign employer pay statements, 1099s, records of foreign taxes paid, and foreign bank account statements for FBAR.
5. Determine your FEIE or Foreign Tax Credit strategy. The FEIE excludes up to $130,000 of foreign earned income for tax year 2025. The Foreign Tax Credit may be more beneficial if you live in a high-tax country.
6. Check your FBAR requirement separately. If the aggregate value of your foreign financial accounts exceeded $10,000 at any point during the year, file FinCEN Form 114 by October 15.
7. File your Form 1040 by June 15 – or request a Form 4868 extension. Attach the written statement explaining that you qualify for the automatic extension. If you need more time, file Form 4868 before June 15 to extend to October 15.

Key dates summary: Expat tax deadlines for tax year 2025

For tax year 2025 returns filed in 2026, expats have up to four potential deadlines – April 15, June 15, October 15, and December 15 – each with different requirements and consequences.

 

All four deadlines extend only the time to file. The time to pay is always April 15.

Interest accrues on any unpaid balance from April 15 regardless of which extension applies.

Looking ahead: For tax year 2026 returns filed in 2027, the same four-deadline structure applies. The standard deadline is April 15, 2027, and the automatic expat extension is June 15, 2027.

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