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Expat tax due dates and deadlines [update for 2025]

Sure you don’t owe the IRS this year?
Living in a low-tax country like Hong Kong, Dubai, or Singapore doesn’t mean you’re exempt. Avoid surprises – use a tax projection to make estimated payments and steer clear of penalties and interest.

Deadline	Description
January 15, 2025	Final 2024 quarterly tax payment.
March 17, 2025	Tax filing due date for non-personal returns: File Form Form 3520-A for foreign trusts with a December 31 reporting period. S Corporation (Form 1120S) and Partnership (Form 1065) returns are due for calendar-year entities. Deadline for Form 7004 to request extensions for the above filings: 6-month extension for S Corporations and Form 3520-A. 5-month extension for Partnerships. Need us to file your extension – request it in your portal!
April 15, 2025	First estimated tax payment for 2025 is due. Deadline to file US Federal tax returns for the prior year (2024). Automatic extension until June 16 if you reside outside the US. However, interest will accrue on any unpaid tax starting from April 15. Deadline to file extension for personal federal tax returns if you do not reside abroad. Deadline to file US Trust (Form 1041) and C corporation (Form 1120) for tax year 2024. Deadline to file Form 3520 for foreign trusts and estates. If Form 4868 is filed for a personal tax return extension, Form 3520 follows the same October 15 extended deadline. Deadline to file FBAR (FinCEN 114) for foreign accounts. Automatic extension until October 15 applies. Deadline for state tax electronic extension requests in DC or NY. NY allows snail-mail extension requests until June 16. Other states typically honor the Federal extension.
June 16, 2025	Deadline to file an extension for personal federal tax returns if you reside abroad. Second estimated tax payment for 2025 is due. Deadline to file Form 3520 for specified US persons meeting certain conditions.
September 15, 2025	Third estimated tax payment is due. Extended non-personal returns, such as Partnerships and S Corporations, are due.
October 15, 2025	Final due date to file last calendar year’s tax returns for taxpayers who received a 6-month expat extension. Final due date for FBAR (automatic extension expires). Final date to request an additional 2-month extension to December 16 by mailing a letter to the IRS. Request my extension
December 16, 2025	Final date to file a 2024 tax return for expats who requested an additional 2-month extension.

Regular tax filing deadline

"Tax Day" is typically April 15. If it falls on a weekend or holiday, the deadline moves to the next business day. In 2025, it remains April 15.

Federal expatriate extension

If you live abroad, the IRS grants an automatic extension to file until June 16, 2025, but any taxes owed are still due by April 15, 2025, with interest accruing on unpaid balances.

Payments made after June 16 incur both interest and failure-to-pay penalties.

NOTE!

Any taxes owed are still due by April 15 (or the next business day if it falls on a weekend/holiday). While expats get an automatic 2-month extension to file, interest accrues on unpaid taxes from April 15. Payments made after June 17 will incur both interest and late payment penalties.

Extension until October 15

If documents are delayed, you can request an additional extension until October 15, 2025, by filing Form 4868.

Expats needing further extensions for the Foreign Earned Income Exclusion can file Form 2350.

FBAR (FinCEN 114)

The FBAR is due on April 15, 2025, with an automatic extension to October 15, 2025. Expats with over $10,000 in foreign financial accounts at any point during 2024 must file.

This includes not just savings/checking accounts but also brokerage, mutual funds, and certain business accounts.

NOTE!

The FBAR is due April 15, with an automatic extension to October 15. NB FBAR is filed with the Treasury, not the IRS.

Disclaimer. Federal tax return expat tax deadlines & due dates only are listed above - Various states may have other filing deadlines - This only includes the most common filing dates and should not be relied on for all filing dates.