How to apply for IRS Form 6166 - Certification of U.S. Tax Residency?1. What is IRS Form 6166? Many U.S. treaty partners require the IRS to certify that the person claiming treaty benefits is a resident of...
IRS Form 6166 ApostilleWhat is Form 6166 - Certification of U.S. Tax Residency? Many U.S. treaty partners require U.S. citizens and U.S. residents to provide a...