Form 8802 Instructions for U.S. Residency Certification: Filing and Fees

Form 8802 is the IRS application you file to get Form 6166, the Treasury letter that proves you’re a U.S. tax resident so a foreign country will honor treaty benefits or a VAT exemption. These Form 8802 instructions walk through eligibility, timing, the user fee, how to pay through Pay.gov, and what to do if the application comes back. Mail your application at least 45 days before you need the certificate in hand, and never before December 1 of the prior year if you’re requesting current-year certification.¹

Who Can File Form 8802

You qualify if you were a U.S. tax resident during the period you want certified. That covers U.S. citizens, resident aliens, domestic corporations, partnerships, S corporations, estates, trusts, and tax-exempt organizations. You generally need to have filed the appropriate federal return for the year in question, or at least for the most recent year if the certification year is current and no return is due yet.²

Two situations disqualify you. If you filed as a nonresident alien for the requested year, the IRS will not certify you as a resident for that period. The same applies to a dual-resident taxpayer who claimed treaty residence in a foreign country under the tie-breaker rules.

Not required to file a return? You can still apply. Attach a written statement explaining why no return was necessary, with any supporting documentation. For current-year requests, you’ll sign a penalties-of-perjury statement confirming you are a U.S. resident and will remain one for the full tax year.³

When to File and How to Send It

The IRS recommends 45 days of lead time. That is guidance, not a guarantee, so build in a buffer if a foreign filing deadline is fixed.¹

Current-year applications cannot be postmarked before December 1 of the prior year. Anything mailed earlier gets returned.

After paying the user fee, you have three ways to submit the application:⁴

Regular mail: Internal Revenue Service, US Residency Certification, Philadelphia, PA 19255-0625.
Private delivery service: Internal Revenue Service, 2970 Market Street, BLN# 3-E08.123, Philadelphia, PA 19104-5016.
Fax: up to 10 Forms 8802 (100 pages maximum) to 877-824-9110 toll-free within the U.S. or 304-707-9792 (not toll-free). Include a cover sheet stating total pages.

What to Have Ready Before You Fill It Out

Your legal name and TIN on Form 8802 must exactly match what’s on your prior returns. Even a minor mismatch delays or kills the application. Use the same name format that appears on your most recent return.

Know the foreign country where you’ll claim treaty benefits, the tax years you need certified, and the purpose (a specific treaty article for reduced withholding, a VAT exemption, and so on).

If a third party will receive Form 6166 or handle IRS correspondence, attach Form 2848 (Power of Attorney) or Form 8821 (Tax Information Authorization). A phone number for that representative helps the IRS resolve questions faster.⁵

Filling Out the Form

Part I: Identification

Enter your full legal name and TIN — Social Security number for individuals, EIN for entities. Give the mailing address where the IRS should send Form 6166. If an appointee will receive the certificate, use their address instead.

Part II: Certification Details

List the calendar year or years and the treaty country. You can request certificates for multiple countries and multiple years on one Form 8802, which avoids paying a separate user fee for each request.⁵ Indicate how many copies of Form 6166 you want per country.

Mark the specific purpose, including the treaty article you’re relying on. Attaching a copy of your most recently filed federal return can shorten processing time because the IRS won’t have to pull it up.⁴

Sign and date the penalties-of-perjury declaration at the end. An authorized representative can sign if a valid power of attorney is on file.

The User Fee and How to Pay Through Pay.gov

Every Form 8802 requires a nonrefundable user fee. The fee is per application, not per certificate, so consolidating requests onto one form is the cheapest route.⁴

Individuals: $85 per Form 8802, no matter how many countries or years.
Non-individuals (corporations, partnerships, tax-exempt organizations, trusts): $185 per Form 8802.
Custodial accounts: the custodian pays $85 or $185 per account holder, depending on whether that holder is an individual or an entity.

Additional requests filed later on a separate Form 8802 owe the full fee again. No follow-up discount exists.⁵ The fee is nonrefundable even if the IRS denies or returns the application.⁶

Paying Electronically

Go to Pay.gov and search for “IRS Certs.” As of September 2024, the IRS requires you to upload a PDF of your Form 8802 during the payment process. That upload is for payment validation only; you still have to mail or fax the actual application. If you’re paying for multiple applications at once, combine them into one PDF under 15 MB.⁵

Once payment clears, you’ll receive an e-payment confirmation number. Write it on page 1 of Form 8802 before sending. The IRS will not process an application without it.⁵ Check or money order is also an option; mail it with the application to the Philadelphia address.

Extra Steps for Partnerships and Pass-Through Entities

Partnerships, S corporations, and grantor trusts are treated as fiscally transparent. The IRS verifies the residency of each partner, member, or beneficiary listed, and the resulting Form 6166 includes an attached list of U.S.-resident partners or owners. The IRS does not certify ownership percentages.⁵

A pass-through applicant must submit:⁵

Name and TIN of each partner seeking certification, plus whatever additional information each partner would need to provide if applying individually.
A Form 8821 (or equivalent) from every partner, including partners in tiered partnerships, allowing the requester to receive that partner’s tax information.
If the requester is not itself a partner, a separate authorization to access the partnership’s own tax information.
Signed penalties-of-perjury statements: each individual partner confirms U.S. residency, and a general partner confirms the entity filed its required return and its classification hasn’t changed.

The partnership pays a single $185 fee per Form 8802 covering every Form 6166 issued under its EIN. For larger partnerships, that’s dramatically cheaper than having partners file individually.⁵

Processing Time

The IRS targets 45 days but slows during peak season, roughly February through May. If a significant delay is expected, the IRS will contact you after 30 days.¹

There is no expedited option. A few things help:

Put a daytime phone number on the application so the IRS can resolve questions quickly.
Attach a copy of your most recently filed federal return, especially if it was filed recently.
Provide phone or fax contacts for any third-party appointee.

Once approved, the IRS mails Form 6166 to the address on the application. If yours is running long, call the U.S. Residency Certification Unit at 267-941-1000 (not toll-free) and select the residency option.¹

If Your Application Is Rejected or Denied

The usual reasons an application comes back without processing are administrative: no user fee paid, a current-year request postmarked before December 1, or a name or TIN that doesn’t match IRS records.⁵ The fix is resubmitting a corrected application and paying the user fee again, because the original fee is nonrefundable.

If the IRS denies you on the merits (deciding you weren’t a U.S. resident for the period requested), or if a foreign treaty partner rejects your Form 6166, you can request U.S. competent authority assistance under Revenue Procedure 2015-40. That’s a formal process where U.S. and foreign tax authorities consult to resolve residency disputes by mutual agreement. The U.S. competent authority does not make one-sided residency determinations. Competent authority requests go to the Commissioner, Large Business and International Division, in Washington, DC (Attention: TAIT); do not send Form 8802 itself to that address.⁴

After You Receive Form 6166

Form 6166 certifies U.S. residency only for the tax years listed on it. It does not roll forward. When you need certification for a new year, you’ll file a fresh Form 8802 and pay the fee again.

Some foreign countries accept Form 6166 as-is. Others require legalization first, usually an apostille (for Hague Apostille Convention countries) or full authentication through the U.S. State Department and the relevant foreign consulate. Requirements vary, so check with the foreign tax authority or consulate before assuming a bare certificate will do. The IRS does not handle legalization; that step is on you after the certificate arrives.

1
Internal Revenue Service. Form 8802 Application for United States Residency Certification Additional Certification Requests
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Internal Revenue Service. Certification of U.S. Residency for Tax Treaty Purposes
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Internal Revenue Service. Form 6166 – Certification of U.S. Tax Residency
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Internal Revenue Service. Instructions for Form 8802
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Internal Revenue Service. Instructions for Form 8802 – Application for United States Residency Certification
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Internal Revenue Service. 21.8.4 United States Certification for Reduced Tax Rates in Foreign Countries