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State rules

District of Columbia residency day rule.

If you keep a place of abode in the District for a total of 183 days or more during the year, you're a resident. The test looks at how long you maintain the abode, so track the home as well as your presence.

Summary as of October 2026 · Not tax advice

Day line183 or more + home
Type of testDay count with a home test
Home in the state requiredYes
LawD.C. Code § 47-1801.04
Official sourceotr.cfo.dc.gov

What it means

Statutory residency tests apply on top of domicile. You can be domiciled elsewhere and still be taxed as a resident if you meet the test.

Keep the record

Whatever the rule, the person claiming not to be a resident usually has to prove it. Log every day, including travel days, and keep the receipts, boarding passes and photos that back it up. What auditors ask for.

States with the same kind of test

Questions

How many days can I spend in District of Columbia without becoming a resident?

If you keep a place of abode in the District for a total of 183 days or more during the year, you're a resident. The test looks at how long you maintain the abode, so track the home as well as your presence. Days alone aren't the whole story: domicile is a separate test.

Does a partial day in District of Columbia count?

Most states with a day test count any part of a day in the state. Check the state's guidance for its exceptions.

Count your days

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