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Office of Tax and Revenue

OTR will host its annual Tax Practitioner’s Institute on Tuesday, January 13, 2026, beginning at 9 am. The workshop will be offered in a hybrid format, with an in-person session and a virtual option via Microsoft Teams. The seminar is free, but registration is required. Register here.

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OTR Policy Related to Processing Returns Filed With Individual Taxpayer Identification Number (ITIN)

The Office of Tax and Revenue (OTR) accepts both paper and electronically filed returns that have Individual Taxpayer Identification Number (ITIN) as the primary identification number.

All returns, including returns with ITINs are processed though the normal workflow that includes fraud review.

ITIN returns selected for review will be reviewed according to procedures set forth to verify items on the return. This includes income and identity verification.  

For all returns, the taxpayer is responsible for substantiation of income, identity and any other information requested by the reviewer.  

For additional information, please contact OTR’s Customer Service Administration at 202-727-4TAX (4829).

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