What Is Form 8802, and How Do I Get a U.S. Tax Residency Certificate?

Form 8802 is the application you file with the IRS to obtain a U.S. Residency Certification (Form 6166), which proves to a foreign government that you are a U.S. tax resident entitled to benefits under a tax treaty. Many countries require Form 6166 before they reduce withholding rates on dividends, interest, pensions, or royalties paid to U.S. persons (IRS: Form 8802).

• Form 8802 is your application to the IRS
• Form 6166 is the certification letter that the IRS issues in response
• The foreign country uses Form 6166 to verify your treaty eligibility and reduce withholding

When expats need Form 6166:

• Claiming reduced withholding on foreign dividends, interest, or royalties under a tax treaty
• Opening foreign investment accounts where the institution requires proof of U.S. tax residency
• Claiming treaty benefits on a foreign pension distribution
• Foreign tax authority requests proof that you are a U.S. tax resident before granting treaty relief
• Recovering foreign tax already withheld at the non-treaty rate

How to apply:

• Complete Form 8802 with your name, TIN, the tax year, and the treaty country
• Pay the $85 fee per certification by check or money order
• Mail to the IRS at the Philadelphia address in the instructions
• Allow 4-6 weeks for processing; apply early if you have a foreign filing deadline
• Renewals: You must reapply each year; certifications are not automatically renewed

Form 8802 is not needed if you file Form W-8BEN directly with a U.S. payer. It is specifically intended to prove U.S. residency to foreign governments and financial institutions.

For more on treaty positions, see our Form 8833 guide.