Updated October 30, 2026. Quick answer: Publication 54 is the IRS guide to special tax rules for U.S. citizens and resident aliens who live and work abroad, and the title carries the edition label 12/2025. It says the physical presence test needs 330 full days in a foreign country during a period of 12 consecutive months.
More on the 2026 tax figures: the foreign earned income exclusion for 2026.
Quick reference
| Item | As the IRS publication states it |
|---|---|
| Full days in a foreign country for the physical presence test (Foreign Earned Income Exclusion) | 330 full days |
| Period of 12 months for the physical presence test (Foreign Earned Income Exclusion) | 12 consecutive months |
| Automatic extension for filing when tax home and abode are abroad (Chapter 1) | June 15 |
| Net earnings from self-employment that trigger self-employment tax (Chapter 3) | $400 |
| Days present in the current year for the substantial presence test (Introduction) | 31 days |
| Total days over three years for the substantial presence test (Introduction) | 183 days |
| Combined foreign account assets at or under which no FBAR is needed (Chapter 1) | $10,000 or less |
What the publication covers
The introduction says “This publication discusses special tax rules for U.S. citizens and resident aliens who live and work abroad.” It adds “If you are a U.S. citizen or resident alien, your worldwide income is generally subject to U.S. income tax, regardless of where you are living.”
The IRS title reads “Publication 54 (12/2025), Tax Guide for U.S. Citizens and Resident Aliens Abroad”. The What’s New section says “Publication 54 has been converted from an annual revision to a continuous use revision in tax year 2025.”
Chapters in plain words
- Chapter 1, filing information: whether you must file, when and where to file, reporting income paid in foreign currency, a nonresident alien spouse treated as a U.S. resident, and estimated tax.
- Chapter 2, withholding of income, social security and Medicare taxes from pay.
- Chapter 3, who must pay self-employment tax.
- Chapter 4, the foreign earned income exclusion and the foreign housing exclusion and deduction.
- Chapter 5, deductions and credits, including contributions to IRAs and foreign taxes.
- Chapter 6, tax treaty benefits.
- Chapter 7, how to get tax help, followed by a questions and answers section.
Forms, tables and where they fit
- Table 1-1, options for ending the choice to treat a nonresident alien spouse as a resident.
- Form 2555 for the exclusions and the housing deduction, attached to the return.
- Form 2350 for an extension to qualify, FinCEN Form 114 (FBAR) and Form 8938 for foreign accounts, and Form 1116 for the foreign tax credit.
On this site, Form 2555 and the foreign earned income exclusion page cover Chapter 4, Form 1116 covers the foreign tax credit, and Form 2350 covers the extension.
The figures that matter
On the residency tests, the publication says “A total of 183 days during the current year and the 2 preceding years, counting all the days of physical presence in the current year, but only one-third the number of days of presence in the first preceding year, and only one-sixth the number of days in the second preceding year.”
On the exclusion, it says “Alternatively, U.S. citizens and resident aliens must be physically present in a foreign country (or countries) for 330 full days during a period of 12 consecutive months.” It adds “The 330 days don’t have to be consecutive.”
On filing dates, it says “If you are a U.S. citizen or resident and both your tax home and your abode are outside the United States and Puerto Rico on the regular due date, an automatic extension is granted to June 15 for filing the return.” It also says “Interest will be charged on any tax due, as shown on the return, from April 15.”
On a further extension, it says “you can generally get an additional 4 months to file your return, for a total of 6 months (to October 15 for calendar-year taxpayers).”
On self-employment tax, it says “You must pay self-employment tax if your net earnings from self-employment are at least $400.”
On foreign accounts, it says “You do not need to file the report if the assets are with a U.S. military banking facility operated by a financial institution, or if the combined assets in the account(s) are $10,000 or less during the entire year.”
The What’s New section says “The annual inflation adjusted amounts for items such as standard deduction, foreign earned income exclusion, and individual retirement arrangement (IRA) contribution limits have been removed throughout the publication.” So the dollar limit on the exclusion is not printed in this edition, and the IRS points readers to IRS.gov for those yearly amounts.
Where it points elsewhere
The IRS page for Publication 54 lists FinCEN Form 105, FinCEN Form 114, and Forms 2350, 4868, 1040, 1116, 2555 and 8854, along with Publications 3, 519, 570 and 901. On this site, Form 4868 covers the automatic extension request, the FBAR deadline page and Form 8938 cover foreign account reporting.
Where this comes from
The IRS page About Publication 54 opens with “This publication discusses special tax rules for U.S. citizens and resident aliens who work abroad or who have income earned in foreign countries.” It links the PDF and eBook editions and the earlier revisions of the publication.
This page describes the web edition of Publication 54 (12/2025), Tax Guide for U.S. Citizens and Resident Aliens Abroad, as served on irs.gov on October 30, 2026. The IRS can revise a publication after we read it, and the IRS page controls. General information, not tax or legal advice.
Common mistakes
- Reading the 330 days as a calendar year test. The publication says “The physical presence test is based only on how long you stay in a foreign country or countries.”
- Assuming one year abroad makes you a bona fide resident. The publication says “You do not automatically acquire bona fide resident status merely by living in a foreign country or countries for 1 year.”
- Treating the June 15 date as a payment deadline. The publication says “Interest will be charged on any tax due, as shown on the return, from April 15.”
- Expecting the exclusion dollar limit in this edition. The publication says its annual inflation adjusted amounts “have been removed throughout the publication.”
Related: IRS publications by number, Form 2555, Foreign earned income exclusion, Form 2350, extension to qualify, Form 4868, automatic extension, Form 1116, foreign tax credit, FBAR deadline, and Form 8938, foreign financial assets.
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Answer againSources
- IRS, Publication 54 (12/2025), Tax Guide for U.S. Citizens and Resident Aliens Abroad (irs.gov): https://www.irs.gov/publications/p54
- IRS, About Publication 54, Tax Guide for U.S. Citizens and Resident Aliens Abroad (irs.gov): https://www.irs.gov/forms-pubs/about-publication-54
Read from the IRS pages linked above on October 30, 2026. General information, not tax or legal advice. The IRS publication and the instructions for your own form control, and your own facts decide the outcome.