Form 2350 Extension: Extra Time to Qualify for the FEIE

A Form 2350 extension gives a US citizen or resident who has recently moved abroad more time to file their federal return so they can first qualify for the Foreign Earned Income Exclusion. You file Form 2350 by the normal due date. The IRS then generally extends the deadline to 30 days after the date you expect to meet the physical presence or bona fide residence test. It does not extend the time to pay.

The first year abroad creates a timing problem. The Foreign Earned Income Exclusion, claimed on Form 2555, only works once you pass one of two residence tests. Many people moving to London or Dubai part-way through a year cannot pass either test by April or even October of the following year. The Form 2350 extension was designed for exactly this gap, as IRS Publication 54 explains. This guide explains when to use it and when an alternative is better.

Why the first year abroad needs a Form 2350 extension

The Foreign Earned Income Exclusion lets you exclude up to $132,900 of foreign earned income for 2026 (IRS, 2026). To claim it, you must have a tax home abroad and meet one of two tests.

The physical presence test

You pass the physical presence test if you are physically present in a foreign country or countries for at least 330 full days in any period of 12 consecutive months. The 12-month window can straddle two tax years. Therefore, someone who moves in August may not complete 330 days until the following summer.

The bona fide residence test

You pass the bona fide residence test if you are a bona fide resident of a foreign country for an uninterrupted period that includes an entire tax year. For a calendar-year taxpayer, that means a full 1 January to 31 December. As a result, someone who moves in August 2026 cannot pass this test until 1 January 2028. The IRS explains both tests on its Foreign Earned Income Exclusion page.

How the Form 2350 extension works

Form 2350, Application for Extension of Time To File U.S. Income Tax Return, is available on the IRS About Form 2350 page. You complete it with the date you moved, the test you expect to meet and the date you expect to meet it.

When to file it

File Form 2350 on or before the due date of your return. For a 2026 calendar-year return, that is 15 April 2027. If you are living abroad on that date, you have an automatic 2-month extension, so you can file Form 2350 by 15 June 2027.

How long it extends

If approved, the extension generally runs to 30 days after the date you expect to meet the relevant test. For example, if you expect to complete 330 days on 10 July 2027, your new deadline would be around 9 August 2027. In limited cases involving the allocation of moving expenses, the IRS can extend to 90 days after the end of the year following the year of the move.

It does not extend time to pay

Interest runs on any unpaid tax from the original due date, 15 April. Consequently, if you expect to owe tax even after the exclusion, you should pay an estimate with Form 2350 or separately. Otherwise, interest and possibly a late-payment penalty accrue.

Worked examples for a 2026 move

The examples below are illustrative. Your own dates depend on your travel record.

Moving to London in August 2026

Consider an American who moves to London on 1 August 2026 and stays put. Using the physical presence test, they could complete 330 full days in the 12 months starting 1 August 2026 by early July 2027. A Form 4868 extension to 15 October 2027 would already cover that date. Therefore, Form 2350 may not be needed at all, and Form 4868 is the simpler choice. However, a UK resident often does better with the foreign tax credit than the exclusion anyway, because UK Income Tax usually exceeds US tax.

Moving to Dubai in November 2026

Now consider an American who moves to Dubai on 1 November 2026. Because the UAE has no personal income tax, the exclusion is valuable. They will complete 330 days around early October 2027 at the earliest, and any trips back to the US push that later. Here, Form 2350 is often the right tool, because the qualifying date may fall after 15 October 2027. Our guide to US citizens working in Dubai covers the wider picture.

Alternatives to a Form 2350 extension

Form 2350 is not the only route. Instead, you can file on time without the exclusion, paying US tax or claiming the foreign tax credit, and then file an amended return on Form 1040-X to claim the exclusion once you qualify. You generally have 3 years from the original filing date to amend. This route means paying tax up front and waiting for a refund. However, it avoids missing a deadline if your qualifying date slips.

Choosing between the exclusion and the credit

For many UK residents, the foreign tax credit on Form 1116 beats the exclusion. That decision can make Form 2350 unnecessary. Our guide to the Foreign Earned Income Exclusion and our foreign tax credit and double taxation page compare the two.

Common mistakes

Several errors recur in first-year files. People file Form 2350 after the due date, which makes it invalid. Others assume the extension delays payment and are surprised by interest. Some count days wrongly when estimating the Form 2350 extension date, forgetting that partial days in transit and days in the US do not count towards 330. Finally, many forget that state tax returns may have their own deadlines, which Form 2350 does not change.

If you moved abroad this year and are unsure which deadline applies, book a consultation with our US expat tax team. We plan your first-year return and choose between Form 2350, Form 4868 and the credit route.

Frequently Asked Questions

What is Form 2350 used for?

Form 2350 requests an extension of time to file a US income tax return for US citizens and residents abroad who need more time to meet the physical presence or bona fide residence test for the Foreign Earned Income Exclusion. The extension generally runs to 30 days after the date you expect to qualify.

When is the Form 2350 deadline?

You must file Form 2350 by the due date of your return, which is 15 April for calendar-year taxpayers. If you are living abroad on 15 April, the automatic 2-month extension lets you file it by 15 June. For a 2026 return, those dates are 15 April 2027 and 15 June 2027.

Does Form 2350 extend the time to pay US tax?

No. Form 2350 only extends the time to file. Interest accrues on any unpaid tax from the original 15 April due date, so you should estimate and pay any tax you expect to owe when you file the extension.

What is the difference between Form 2350 and Form 4868?

Form 4868 extends the filing deadline to 15 October for any taxpayer. Form 2350 is only for people abroad waiting to qualify for the Foreign Earned Income Exclusion, and can extend beyond 15 October, to 30 days after the expected qualifying date. Neither extends the time to pay.

Can I claim the Foreign Earned Income Exclusion later instead of using Form 2350?

Yes. You can file your return on time without the exclusion and later file an amended return on Form 1040-X claiming it once you pass the physical presence or bona fide residence test. You generally have 3 years from the original filing date to amend.

How many days do I need for the physical presence test?

You need at least 330 full days in a foreign country or countries during any 12 consecutive months. Days spent in the United States, and partial days in transit over international waters, do not count as full days abroad.