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US taxpayer with a nonresident spouse: ITIN and filing-election review
Marriage to a nonresident spouse can affect filing status, identification-number requirements and whether an election to treat the spouse as a US resident should be considered. The election can expand US reporting, so it should be reviewed before filing.
Who it may apply to
US citizens or residents whose spouse is a nonresident alien, including couples living between the US, Canada and India or where the spouse has foreign income, assets or a pending immigration status.
Records to collect
Marriage details, residency and travel history, spouse income records, SSN or ITIN status, foreign accounts and assets, prior joint or separate returns and any immigration documents relevant to tax residency.
Filing and decision points
Compare filing positions, determine whether an ITIN application is appropriate, review the consequences of a resident-spouse election and map any added worldwide income or information reporting.
Common mistakes
Treating marriage as automatic joint filing, applying for an ITIN without a filing plan, overlooking the election’s future effects or failing to document the spouse’s residency and income.
Official sources
Reviewed by Gurleen Kaur, CPA (Washington State). Reviewed September 7, 2026.