What is Form 6166?
Form 6166 (also called United States Residency Certification) is a letter printed on the U.S. Department of Treasury stationary certifying that an individual or a company was / is a resident of the United States for the purposes of income tax laws of the United States.
Why you might need Form 6166?
What agency issues Form 6166?
Forms 6166 are issued by the IRS.
I have the original 6166 and just need an apostille
Mail the original Form 6166 to us along with the Order form, and we will get an apostille or embassy seal for it. As this is a federal document, an apostille will be from Washington DC. The processing time is 4-5 business days.
