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Validating Supplier ACH Bank Accounts and Tax IDs: Best Practices
September 30, 2026
Q. I would like to know if it is best business practice, when validating a supplier's ACH banking information, to also validate the Tax ID (EIN, TIN, SSN) associated with the account. Also, if the supplier's ACH bank account and Tax ID do not match, what are the best business practices to verify the account?
A.
(Answered by IOFM's third-party tax expert)
A basic bank account ownership validation matches key data points provided by the vendor against the records held by financial institutions.…
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