Taxpayer Identification Number (TIN) Policy

The Taxpayer Identification Number (TIN) Policy Directive, issued on November 9, 2000, requires all Federal payment certifying officials to include a valid TIN on all payments vouchers certified to Treasury for payment, except in specific circumstances.

What if you need to obtain a TIN?

• Individuals: Contact your local Social Security Administration (SSA) office to apply for a Social Security number.
  
  
• Businesses: Contact the Internal Revenue Service (IRS) to apply for an Employer Identification Number.