USApostille provides a certification service for the U.S. Tax Residence Certificate issued by the IRS, acronym, IRS 6166 Form, links to an external website. Which is used in countries participating in the Hague Convention.

We received an apostille of tax residency at the U.S. Department of Commerce and help companies authenticate the U.S. Department of Commerce and the embassy of the destination country in Washington DC.

Legalization of the embassy is necessary to recognize documents that are used in countries not participating in The Hague.