# United States Tax Residence & Foreign Income

US citizens and resident aliens generally remain within the federal worldwide-income framework while abroad; reliefs and filing obligations need separate checks.

Scope: US federal individual income-tax scope, including citizens abroad and resident/nonresident aliens; not state taxes or a calculation of tax due.

Jurisdiction: United States federal individual taxation. Sources reviewed 2026-09-17; review due 2026-12-16.

General information, not personal tax advice. Nationality, tax residence and source of income are different questions. Consult the tax authority or a qualified adviser for your circumstances.

## Citizens living abroad

US citizens and resident aliens abroad generally report taxable worldwide income under the same federal framework as those living in the US.

Evidence: documented. [US Internal Revenue Service: US citizens and resident aliens abroad](https://www.irs.gov/individuals/international-taxpayers/us-citizens-and-resident-aliens-abroad). Source location: Opening paragraphs.

## Tax residence for non-citizens

The green-card or substantial-presence test can establish resident-alien status. The presence test weights days across three years and has exclusions and exceptions.

Evidence: conditional. [US Internal Revenue Service: Topic 851: resident and nonresident aliens](https://www.irs.gov/taxtopics/tc851). Source location: Resident aliens; Green card test; Substantial presence test.

## Relief is not automatic exemption

Foreign earned-income exclusions and foreign tax credits may help eligible taxpayers, but claiming them requires a US return and satisfying the relevant rules.

Evidence: conditional. [US Internal Revenue Service: US citizens and resident aliens abroad](https://www.irs.gov/individuals/international-taxpayers/us-citizens-and-resident-aliens-abroad). Source location: Foreign tax benefits.

## Nonresident-alien treatment

Nonresident aliens follow different source-income rules; do not apply the citizen-abroad summary merely because someone visits the US.

Evidence: conditional. [US Internal Revenue Service: Topic 851: resident and nonresident aliens](https://www.irs.gov/taxtopics/tc851). Source location: Taxation of nonresident aliens.

## Foreign accounts and filing

Foreign financial accounts can trigger separate reporting. Check the IRS-linked FBAR rules and filing guidance rather than assuming no tax due means no reporting.

Evidence: conditional. [US Internal Revenue Service: US citizens and resident aliens abroad](https://www.irs.gov/individuals/international-taxpayers/us-citizens-and-resident-aliens-abroad). Source location: Foreign financial accounts; When to file.

## Scope and limitations

- No tax rates, filing thresholds, state-tax rules or individual treaty outcomes are calculated here. Multiple citizenship does not merge the tax rules of the countries involved.

## Explore this passport

- [Passport rank and travel access](https://multipassrank.com/passport/united-states)
- [Citizenship requirements](https://multipassrank.com/passport/united-states/citizenship)
- [Country-profile JSON, including sources and scoped requirements](https://multipassrank.com/api/v1/country-profiles/US)
- [Multiple-citizenship policy guide](https://multipassrank.com/dual-citizenship-countries)

[Canonical page](https://multipassrank.com/passport/united-states/taxes)