US certificate of tax residency (IRS Form 6166)
United States · Form 6166, Certification of U.S. Tax Residency (requested on Form 8802)
$141.75 · order and pay online
Order this report
What the report shows
Letter on US Treasury letterhead certifying that the named individual or entity is a US resident for federal income tax purposes for the year(s) requested.
Who needs it
US companies and individuals earning foreign income, funds, LLC owners, tax advisers, foreign payers
Why people order it
claim reduced withholding under income tax treaties abroad, foreign VAT exemption, foreign bank/tax authority residency proof
What we need from you
- ✍️Details you type in the form: taxpayer identification number (SSN/EIN), tax year, treaty country, filed returns, signature under penalties of perjury
- 🙋Ordering for yourself? A typed signature in the form is enough.
- 📝Ordering for someone else? Upload a power of attorney they signed — download our ready form. ⤓ Ready power-of-attorney form
- ✅No original document and no post — everything happens online.
Legal limits
Signed under penalties of perjury by the taxpayer or authorised person; a third-party appointee needs IRS authorisation (per Form 8802 instructions, e.g. Form 2848/8821). Certification generally requires that the applicant filed the required US return for the period.
Issued by
Internal Revenue Service — United States Residency Certification function
Questions and answers
How do I order US certificate of tax residency (IRS Form 6166) online?
Fill in taxpayer identification number (SSN/EIN), tax year, treaty country, filed returns, signature under penalties of perjury in the form on this page, pay $141.75 by card, and the document is e-mailed to you within not stated on official page; typically several weeks.
How much does US certificate of tax residency (IRS Form 6166) cost?
$141.75, including the official fee of $105.00.
How long does US certificate of tax residency (IRS Form 6166) take?
not stated on official page; typically several weeks.
Who can order US certificate of tax residency (IRS Form 6166)?
The person or an authorised agent.
Do I need to send the original document?
No. Everything is online — no original and no post.
Terms
Work starts as soon as you pay; once the document is delivered the order can no longer be cancelled.
Joy Work OS is a private service and not the issuing authority. You can also order this document directly from the authority at the official fee.