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Form 2350 vs Form 4868: Which Expat Tax Extension Do You Need?
Updated: 2 days ago
Short answer: Many Americans abroad get an automatic extension to June 15 to file, but interest still runs from April 15. Form 4868 extends filing to October 15. Form 2350 is for people who will meet the exclusion's residence or presence test only after the return is due.
Key takeaways
Qualifying Americans abroad get an automatic 2-month extension to June 15, with no form filed in advance.
No extension of time to file is an extension of time to pay. Interest runs from April 15.
Form 4868 gives a total of 6 months from April 15, which is October 15 for calendar-year filers.
Form 2350 is for people who expect to meet the bona fide residence or physical presence test only after the return is due.
An approved Form 2350 rules out the discretionary December 15 extension.
The automatic extension to June 15
For a calendar-year return, you get an automatic 2-month extension to June 15 if, on the April 15 due date, either of these is true:
You live outside the US and Puerto Rico, and your main place of business or post of duty is also outside them.
You are in military or naval service on duty outside the US and Puerto Rico.
You file no form in advance. You attach a statement to your return explaining which situation applies.
It extends filing, not payment
The extension to June 15 does not stop interest. Interest runs from April 15 on any tax you have not paid by then. The late-payment penalty is measured differently: for people who qualify for the automatic extension, it is measured from June 15, not April 15.
Form 4868: filing extended to October 15
If you file Form 4868 by June 15, you get a total of 6 months from April 15, which is October 15 for calendar-year filers. Check the "out of the country" box on line 8. The extra 4 months is not time to pay. Interest runs from April 15, and a late-payment penalty can apply.
The discretionary extension to December 15
Taxpayers abroad can ask for 2 more months, to December 15, by sending the IRS a letter explaining why, by October 15. The IRS replies only if it denies the request.
Form 2350: for people still waiting to qualify
You expect to meet the bona fide residence test or the physical presence test, but only after your return is due. You also need a foreign tax home throughout the qualifying period.
Bona fide residence: you are a bona fide resident of a foreign country for an uninterrupted period that includes an entire tax year.
Physical presence: you are in a foreign country at least 330 full days during any 12 consecutive months.
An approved extension is generally for 30 days beyond the date you can reasonably expect to qualify. File it by the return's due date, generally June 15 if both your tax home and abode are outside the US.
Form 2350 cannot be combined with the December extension: that request is not available to anyone with an approved Form 2350. It is an extension to meet the residency tests, so do not treat it as time to pay.
Form 4868 vs Form 2350 at a glance
Who it is for — Form 4868: Anyone who needs more time to file; Form 2350: People abroad who expect to meet the residence or presence test only after the return is due
How long — Form 4868: 6 months from April 15 in total, to October 15 for calendar-year filers; Form 2350: Generally 30 days beyond the date you expect to qualify
When to file — Form 4868: By the regular due date, or by June 15 if you use the automatic extension; Form 2350: By the return's due date, generally June 15 if tax home and abode are outside the US
December 15 request — Form 4868: Allowed, by letter by October 15; Form 2350: Not available
Why the tests matter
Many expats file to claim the foreign earned income exclusion. The maximum is $130,000 per qualifying person for tax year 2025 and $132,900 per person for tax year 2026. You claim it on Form 2555, and only if you file a return reporting the income.
How we help
Sabih Shafi is an IRS Enrolled Agent, federally licensed to represent taxpayers before the IRS in all 50 states. We work remotely with Americans abroad, in English or Spanish. We can:
Work out whether the automatic extension, Form 4868 or Form 2350 fits your dates.
Prepare the statement, the extension and the return.
You get a flat fee, quoted in writing before any work starts. The free review is 20 minutes: call or text (323) 900-0305, or book your free 20-minute tax review.
General information, not tax advice for your situation.
Frequently Asked Questions
Do I need to file anything to get the June 15 extension?
No form is filed in advance. You attach a statement to your return explaining which situation qualified you.
When is my tax payment due if I get an extension?
Interest runs from April 15 on tax not paid by then. The extension gives you more time to file, not to pay.
Can I use Form 2350 and also ask for the December 15 extension?
No. The December 15 extension is not available to anyone with an approved Form 2350.
Do I need an ITIN to file Form 4868?
No. An ITIN is not needed to request an extension on Form 4868, or to make estimated tax payments.
Can a couple use the automatic extension if only one spouse lives abroad?
On a joint return, either spouse can qualify the couple. On separate returns, it applies only to the spouse who qualifies.
Last reviewed: October 2026 by Sabih Shafi, EA
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Talk to an Enrolled Agent
This article is general information, not individual tax advice. If you want to talk through your own IRS or state balance, book a free 20-minute review or call or text us directly.
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