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FAQ: What are the Validation Rules for the Tax ID Field in Vendor Management ?

The Tax ID field accepts either an EIN or an SSN and validates the entered value against established formatting and eligibility rules before saving the vendor record.

Navigation: WORK ORDERS > VENDOR MANAGEMENT > VENDOR > EDIT > MORE DETAILS > TAX ID

The Tax ID field validation supports two Taxpayer Identification Number (TIN) types:

  • Employer Identification Number (EIN)
  • Social Security Number (SSN)

When validating a Tax ID, the system checks for a valid EIN first. If the value does not meet EIN requirements, the system then evaluates it against SSN validation rules.

 

EIN Validation Rules

To be considered a valid EIN, the Tax ID must meet all of the following requirements:

  1. The format must be XX-XXXXXXX:
    • Exactly 2 digits
    • Followed by a hyphen (-)
    • Followed by exactly 7 digits
  2. The two-digit prefix must be a recognized IRS-issued EIN prefix.

SSN Validation Rules

To be considered a valid SSN, the Tax ID must meet all of the following requirements:

  1. The format must be XXX-XX-XXXX:
    • Exactly 3 digits
    • Followed by a hyphen (-)
    • Followed by 2 digits
    • Followed by a hyphen (-)
    • Followed by 4 digits
  2. Area Number (first 3 digits):
    • Cannot be 000
    • Cannot be 666
    • Cannot begin with 9
  3. Group Number (middle 2 digits):
    • Cannot be 00
  4. Serial Number (last 4 digits):
    • Cannot be 0000
  5. Additionally, specific blacklisted SSNs are not permitted.
End of FAQ