The bona fide residence test is one of the two ways a US citizen whose tax home is in a foreign country becomes a qualified individual for the foreign earned income exclusion, the foreign housing exclusion and the foreign housing deduction (IRS, foreign earned income exclusion, bona fide residence test). The Code puts it in a single clause: a citizen of the United States who establishes to the satisfaction of the Secretary that he has been a bona fide resident of a foreign country or countries for an uninterrupted period which includes an entire taxable year (26 U.S.C. 911(d)(1)(A)). The other route, the physical presence test, counts days instead.
Tax home is a separate gate, failed on its own facts. It carries its section 162(a)(2) meaning, the regular or principal place of business, or, where the individual has no regular or principal place of business because of the nature of the business, the regular place of abode in a real and substantial sense (26 CFR 1.911-2(b)). Nobody has a tax home in a foreign country for any period during which their abode is within the United States, unless the individual is serving in an area designated by the President of the United States by Executive order as a combat zone for purposes of section 112 in support of the Armed Forces of the United States (26 U.S.C. 911(d)(1) and (d)(3)).
Citizenship is the tighter limit. This route is written for a citizen, while the physical presence route is open to a citizen or resident (26 U.S.C. 911(d)(1)(A) and (d)(1)(B)). A resident alien reaches it only as a US resident within the meaning of IRC section 7701(b)(1)(A) who is a citizen or national of a country with which the United States has an income tax treaty in effect (IRS, foreign earned income exclusion, bona fide residence test).
An Entire Tax Year, Not Twelve Months
The period of residence has to contain a whole tax year, January 1 through December 31 for a calendar-year filer, so a stay longer than a year that straddles two of them still fails. The IRS works it on stated dates: a citizen who arrives in Lisbon with their family on November 1, 2024 for an indefinite assignment completes an uninterrupted period covering the full tax year 2025 on January 1, 2026, while the same person transferred back to the United States on December 13, 2025 fails, because no entire tax year sits inside the stay (IRS, foreign earned income exclusion, bona fide residence test).
A mid-year move is therefore a timing problem rather than a permanent loss. Once the qualifying period is complete the exclusion runs from the date residence actually began (IRS, Publication 54 (December 2025)), so the status can cover a full tax year plus parts of one or two others (IRS, foreign earned income exclusion, bona fide residence test).
Uninterrupted describes the residence, not the taxpayer’s location. Bona fide residence may be established even if temporary visits are made during the period to the United States or elsewhere on vacation or business (26 CFR 1.911-2(c)), provided there is a clear intention of returning from those trips without unreasonable delay (IRS, foreign earned income exclusion, bona fide residence test).
The time requirement itself can be waived. Someone who leaves a foreign country during a period for which the Secretary determines, after consultation with the Secretary of State, that individuals were required to leave because of war, civil unrest or similar adverse conditions that precluded the normal conduct of business, and who establishes that they could reasonably have been expected to have met the requirement but for those conditions, is treated as a qualified individual for the period during which they were a bona fide resident of, or present in, that country (26 U.S.C. 911(d)(4)). The countries that qualify, and the dates, are published each year in an Internal Revenue Bulletin (IRS, Publication 54 (December 2025)).
Facts and Intent, Not a Day Count
Bona fide residence is determined by applying, to the extent practical, the principles of section 871 and the regulations thereunder, relating to the determination of the residence of aliens (26 CFR 1.911-2(c)). Those are the transient-or-sojourner rules: a person who is not a mere transient or sojourner is a resident, and whether the person is a transient turns on their intentions with regard to the length and nature of the stay. They were superseded for general residency questions and kept in force for this one alone, continuing to apply for purposes of determining whether an individual is a qualified individual under section 911(d)(1)(A) (26 CFR 1.871-2).
The evidence is documentary. Consideration is given to the type of quarters occupied, whether the family went along, the type of visa, the employment agreement, and any other factor showing whether the stay abroad is indefinite or prolonged (IRS, Publication 54 (December 2025)). Where words and acts conflict, the acts carry more weight (IRS, Instructions for Form 2555 (2025)).
A nonresidence claim filed abroad defeats the status. Someone who tells a foreign country’s authorities that they are not a resident there, and is held not subject to that country’s income tax as a resident on those earnings, is not a bona fide resident of that country (26 U.S.C. 911(d)(5)). A statement of nonresidence whose accuracy that country has not resolved as of the date the determination is being made carries the same effect on that date (26 CFR 1.911-2(c)).
Where It Lands on the Return
Form 2555 splits the two routes, Part II for bona fide residence and Part III for physical presence, and the instruction is to complete one of them but not both (IRS, Instructions for Form 2555 (2025)).
Part II is a facts questionnaire rather than a computation, and it collects the evidence above. Line 10 asks the dates residence began and ended, the lines after it ask what the living quarters, the family arrangements, the visa and the employment terms actually looked like, and a “Yes” on line 13a with a “No” on line 13b ends the claim on the form itself (IRS, Form 2555 (2025)).
The election is sticky. It applies to the year for which it is made and to all subsequent years unless revoked, and a taxpayer who revokes may not elect again before the 6th taxable year after the year of the revocation except with the consent of the Secretary (26 U.S.C. 911(e)). The instructions put the same lockout from the taxpayer’s side, as the next 5 tax years without IRS approval (IRS, Instructions for Form 2555 (2025)).
The exclusion it unlocks is capped at $130,000 for tax year 2025 and $132,900 for tax year 2026 (IRS, tax inflation adjustments for tax year 2026). That ceiling is an annual rate rather than a flat allowance, because excludable foreign earned income is computed on a daily basis at the annual rate for the calendar year in which the tax year begins (26 U.S.C. 911(b)(2)(A)).
Form 2555 does that arithmetic on lines 37 through 40, entering the ceiling, then the qualifying days that fall within the tax year, then those days divided by the days in the tax year, then the ceiling multiplied by that decimal (IRS, Form 2555 (2025)). A partial-year qualifier therefore excludes a fraction of the headline number.
No deduction or exclusion from gross income and no credit against the tax is allowed to the extent it is properly allocable to or chargeable against the excluded amount, which is what stops foreign taxes paid on excluded income from also being taken as a credit or a deduction (26 U.S.C. 911(d)(6)). That is the seam between this relief and the credit route in double tax, and the excluded amount comes back into several definitions of modified adjusted gross income. None of it shrinks the reporting that runs alongside the return, which is worked through in international tax services.
What It Is Commonly Confused With
A year abroad. The status is not acquired automatically by living in a foreign country for one year, and going there to work for a specified period ordinarily does not create it even where the work runs a tax year or longer (IRS, foreign earned income exclusion, bona fide residence test).
The substantial presence test. That test decides whether a foreign national is a US resident for tax purposes, while this one decides whether a US citizen abroad may exclude foreign earned income; its weighted day count is worked through in nonresident alien.
Common Questions
Establish a tax home in a foreign country, go there for an indefinite or prolonged period rather than a defined errand, hold that residence unbroken across a full tax year, and report the facts in Part II of Form 2555. The IRS decides the question largely on what that form reports and cannot decide it until the form is filed (IRS, foreign earned income exclusion, bona fide residence test).
The physical presence test is arithmetic, met by a citizen or resident of the United States present in a foreign country or countries during at least 330 full days in any period of 12 consecutive months (26 U.S.C. 911(d)(1)(B)). It does not depend on the kind of residence established, the intention about returning, or the nature and purpose of the stay (IRS, Publication 54 (December 2025)). The bona fide residence test asks exactly those questions.
It means having made a home in the foreign country rather than visiting it. Going there for an indefinite or extended period and setting up permanent quarters for the household probably establishes a bona fide residence, even where the intention is to return to the United States eventually (IRS, foreign earned income exclusion, bona fide residence test).
Firms absorbing expatriate individual returns on top of a domestic busy season can put a block of that preparation through a trial task before any of it reaches a client file.
