TIN (Taxpayer Identification Number) validation is the process of verifying the TIN provided by payees against the records of the Internal Revenue Service (IRS). If TIN validation fails, it typically means the information provided does not match the IRS records, resulting in the payee being marked as "unpayable."
A TIN can be an SSN (Social Security Number) for individuals or an EIN (Employer Identification Number) for companies. In either case, it is always a 9 digit number.
The most frequent reason for failed TIN validation is a mismatch in the information provided. Often, the TIN itself is correct, but the name entered does not match what the IRS has on record. Ensure that the name on corresponds with official IRS records such as the payee’s W9 or EIN confirmation letter.
For additional assistance, submit a ticket with our support team and attach a copy of the payee’s W9 or EIN confirmation letter.