How-To Guides26 min read
FTIN Validation for Platform Onboarding: When to Collect and Check It
FTIN validation is not a universal requirement for every non-U.S. user. It is a branch-specific control that matters only when your onboarding flow actually relies on a foreign tax form, a substitute tax-residency certification, or a withholding workflow that needs the foreign tax ID to be present, explained, or reviewed.
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