The Physical Presence Test: how the 330-day rule actually works

Updated September 2026 · Covers 2025 returns (filed 2026) & 2026 planning · Sources: IRS Pub. 54, Form 2555 instructions, Rev. Proc. 2025-32 · Spot an error?

Last reviewed September 2026 by Ken Hoven against IRS Publication 54, the Form 2555 instructions, and the IRS Physical Presence Test page. See editorial standards. Educational content only — not tax or legal advice.

What the Physical Presence Test is

The Physical Presence Test (PPT) is one of the two ways a U.S. citizen or resident alien can qualify for the Foreign Earned Income Exclusion. The other is the Bona Fide Residence Test. You only need to pass one of them, and the PPT is the one most people use in their first year or two abroad because it's purely arithmetic: 330 full days physically present in a foreign country or countries during any period of 12 consecutive months.

Two other conditions ride along with the day count. Your tax home has to be in a foreign country for the same period — meaning your regular place of business or employment is abroad, not just your mailing address. And the income you want to exclude has to be earned income (salary, wages, self-employment) for services performed while you were abroad. Passive income like rent, dividends, and pensions never qualifies for the FEIE regardless of how many days you spend overseas.

The 12-month window is not the calendar year

This is the point I got wrong my first year abroad, and it's the one I see people get wrong more than any other. The 330 days do not have to fall inside January 1 to December 31. The test asks whether there is any period of 12 consecutive months during which you were in foreign countries for 330 full days. The period can start on any day of any month, and it can straddle two tax years.

So if you moved abroad on September 10, 2025, you cannot possibly have 330 foreign days in calendar 2025 — but you almost certainly have them in the window September 10, 2025 to September 9, 2026. That window qualifies you, and it lets you exclude the foreign earned income you received from September 10 onward in 2025, prorated for the number of qualifying days that fall in the 2025 tax year (more on proration below).

Three rules about the window:

• You choose it. Pick the 12-month period that gives you the most excludable income. The IRS lets you use overlapping windows for different tax years.
• It must be 12 consecutive months. Not 365 days from a mid-month start rounded to something convenient — 12 full months. A window starting September 10 ends September 9 the following year.
• The 330 days inside it don't have to be consecutive. You can leave and come back. What matters is the total count of full foreign days inside the window, and the total time not in a foreign country cannot exceed about 35 days across the whole window.

Counting days: the midnight rule

A "full day" is a 24-hour period that begins at midnight. You are physically present in a foreign country for a full day only if you are there for the entire period from one midnight to the next. Partial days don't count toward the 330.

Practically:

• The day you arrive in a foreign country is not a full foreign day unless you arrived before midnight the previous night. If your flight lands at 2 p.m. on March 3, your first full foreign day is March 4.
• The day you leave a foreign country is not a full day either. If you fly out at 9 a.m. on June 20, your last full foreign day was June 19.
• Moving between two foreign countries generally keeps the count running, as long as the travel doesn't route you through the U.S. or spend a full 24 hours over international waters (see the next section).

I keep a one-line-per-trip spreadsheet: departure date, arrival date, where. It's the single document that makes Form 2555 Part III take ten minutes instead of an afternoon, and it's what you'd hand the IRS if they ever asked. Our Physical Presence Test calculator does the arithmetic if you'd rather not.

Travel days, U.S. visits, and international waters

Days spent in the United States never count as foreign days — including U.S. territories and possessions, which the FEIE rules treat as part of the U.S. for this purpose. That much everyone expects. The two cases that catch people:

• Transiting through the U.S. A connection through JFK or LAX on the way from one foreign country to another counts as time in the U.S. for the days you're on the ground there. A long layover can cost you a full day; an overnight connection costs two partial days, which means two calendar days that are not full foreign days.
• International waters and airspace. Time spent over international waters — a long-haul flight, a cruise, a ferry crossing — is not time in a foreign country. If you're not physically in some foreign country for a full 24 hours, that day doesn't count. A direct flight from Doha to Manila that stays within a single calendar day usually costs you just that one travel day; a multi-day ocean passage costs each day you're at sea.

Think of the 35-day allowance (365 minus 330) as the total budget for U.S. trips, travel days, and time at sea inside your window. A two-week Christmas trip home plus the travel days at each end typically uses 16 to 18 of those 35. Two such trips and a wedding, and you're at the edge.

Three worked examples

1. Mid-year move — the window saves the first year

Priya moves from Chicago to Singapore, landing on July 14, 2025. She takes one trip home: December 20, 2025 to January 4, 2026. She has not lived abroad before.

Calendar 2025 has only about 170 foreign days for her, so she fails the test if she counts by calendar year. But the window July 15, 2025 – July 14, 2026 contains 365 days minus the 16-day U.S. trip and its travel days — roughly 347 foreign days. She qualifies. On her 2025 return she excludes the Singapore salary earned from July 15 onward, prorated for the 170 qualifying days in 2025.

2. Too many trips home — one day short

Marcus has lived in Mexico City since 2023. In his 2025 window he flies to the U.S. for three trips: 10 days in March, 14 days in July, and 12 days in November. Counting the travel days at each end as non-foreign days, he's at roughly 36 to 42 non-foreign days depending on flight times — and the test allows 35.

Marcus has two outs. He can shift the window — a period starting after the March trip and running into 2026 might hold 330 foreign days if his 2026 travel is lighter. Or, since he's lived in Mexico for years with a home, a lease, and local ties, he can qualify under the Bona Fide Residence Test instead, which has no day count at all. Long-term expats often move to the BFR test for exactly this reason.

3. The overnight U.S. layover nobody counted

Dana works in Dubai and her family is in Manila. Her flights home route through Los Angeles with an overnight stop each way, twice a year. Each overnight costs two calendar days that aren't full foreign days, so four trips-through-LAX a year quietly consume 8 days of the 35-day budget before a single day in the U.S. proper is counted. Routing through Doha or Hong Kong instead keeps the count intact. This is the kind of thing that only shows up if you actually log the days.

Proration: what you can exclude in a partial year

The FEIE limit — $130,000 for tax year 2025 and $132,900 for 2026 — is an annual figure. If your qualifying period covers only part of a tax year, the limit is prorated by the number of qualifying days in that year divided by the days in the year. Priya, above, with 170 qualifying days in 2025, has a 2025 limit of about $130,000 × 170 ÷ 365 ≈ $60,500. Any foreign earned income above that is taxed normally (and may be a candidate for the Foreign Tax Credit instead).

If your first tax return abroad is due before you've completed the 330 days, you can file Form 2350 to request an extension until after you expect to qualify, instead of filing without the exclusion and amending later.

What happens if you fail the test

You don't get the FEIE for that year — but you're not necessarily paying double tax. Your options, roughly in order:

• Try a different window. The most common fix. Many people fail the calendar year and pass a shifted 12-month period.
• Use the Bona Fide Residence Test. Available if you've been a resident of a foreign country for an uninterrupted period that includes a full tax year and your ties are genuinely there. No day count.
• Take the Foreign Tax Credit. If you live in a country that taxes you at or above U.S. rates, the FTC may leave you owing nothing anyway — and for high-tax countries it's often the better choice even when you do pass the PPT. Here's how to decide.
• The war/civil-unrest waiver. If you had to leave a country because of war, civil unrest, or similar conditions, the IRS publishes a list each year of countries and dates for which the minimum-time requirement is waived. Narrow, but real.

What you can't do is count days you weren't there. The test is verified against passport stamps, boarding passes, and employer records if it's ever examined.

If you're catching up on past years

The 330-day count matters beyond the FEIE. The Streamlined Foreign Offshore Procedures — the IRS catch-up program most people call the "expat amnesty" — require that you were outside the U.S. for at least 330 full days in at least one of the three years you're filing, with no U.S. abode. Same counting rules, same midnight logic. If you're reconstructing old years, the streamlined checklist walks through what evidence you need.

Common mistakes

• Counting by calendar year and concluding you don't qualify in a move year. Shift the window.
• Counting arrival and departure days as foreign days. Only full midnight-to-midnight days count.
• Forgetting layovers through U.S. airports and long ocean crossings.
• Assuming the PPT is the only test. Long-term residents are often better off under Bona Fide Residence, which has no day limit.
• Passing the PPT but having a U.S. tax home — remote workers employed by a U.S. company who keep their "regular place of business" in the U.S. can fail on the tax-home prong even with 365 foreign days. Where your work is actually performed is what matters.
• Not keeping a travel log. Reconstructing three years of trips from old emails is miserable. One spreadsheet, updated each trip.

Frequently asked questions

Do the 330 days have to be consecutive?

No. The 330 full days can be spread across the 12-month window with trips in between. What is required is that the window itself is 12 consecutive months and that the total of full foreign days inside it reaches 330. In practice that leaves about 35 days for U.S. visits, travel days, and time over international waters.

Does the 12-month period have to be a calendar year?

No — and this is the single most common misunderstanding. The 12-month period can begin on any day and can span two tax years. Someone who moved abroad in September can qualify using a September-to-September window and exclude income from the move date onward, prorated for the days that fall in each tax year.

Do layovers in the U.S. count against me?

Yes. Any time you are physically in the United States, including a connection at a U.S. airport, is not time in a foreign country. A same-day connection usually costs one day; an overnight connection costs two calendar days that are no longer full foreign days.

What if I was abroad for 329 days?

You fail the Physical Presence Test for that 12-month window. Try a different window that captures fewer U.S. days, consider the Bona Fide Residence Test if you have established residence abroad, or take the Foreign Tax Credit instead of the FEIE for that year. Being one day short does not change the count; the test has no rounding.

Is the Physical Presence Test the same test used for the Streamlined Procedures?

It's the same 330-full-days-abroad concept. The Streamlined Foreign Offshore Procedures require that in at least one of the three years being filed you were physically outside the U.S. for 330 full days and did not maintain a U.S. abode. The counting rules for full days are the same as for the FEIE.