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Range of valid SSN, ITIN, or ATIN

by Intuit Updated 8 months ago

This article explains the valid range for Social Security Numbers (SSN), Individual Taxpayer Identification Numbers (ITIN), or Adoption Taxpayer Identification Numbers (ATIN).

  • For more information, see IRS Publication 1346 (Electronic Return File Specifications and Record Layouts for Individual Income Tax Returns).

Identification Numbers are broken down as follows:

1 2 3 - 4 5 - 6 7 8 9
Area - Group - Serial

Social Security Number (SSN) Ranges

  • 001-01-0001 through 665-99-9999
  • 667-01-0001 through 899-99-9999
  • 750-01-0001 through 763-99-9999
  • 764-01-0001 through 899-99-9999

When the SSN "Group" contains zeros, the SSN is a test SSN and the return will be rejected. When the SSN "Serial" contains all zeros, the return will be rejected.

Individual Taxpayer Identification Numbers (ITIN) Ranges

  • 900-70-0000 through 999-88-9999
  • 999-90-9999 through 999-92-9999
  • 999-94-0000 through 999-99-9999
  • The valid range for the ITIN "Area" is 900 through 999.
  • The valid range for the ITIN "Group" is
    • 70 through 88
    • 90 through 92
    • 94 through 99
  • The valid range for the ITIN "Serial" is 0000 through 9999.

An ITIN is a nine-digit number assigned by the Internal Revenue Service to taxpayers who aren't eligible to obtain an SSN. It's used for tax purposes only.

Adoption Taxpayer Identification Numbers (ATIN) Ranges

  • 900-93-0000 through 999-93-9999
  • The valid range for the ATIN "Area" is 900 through 999.
  • The valid ATIN "Group" is 93.
  • The valid range for the ATIN "Serial" is 0000 through 9999

An ATIN is a temporary nine-digit number issued by the Internal Revenue Service for an adoptive child. It is provided to individuals who are in the process of legally adopting a US citizen or resident child and who aren't eligible to obtain an SSN for that child in time to file their tax return.

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