IRS Logo
Print - Click this link to Print this page

Individual Taxpayer Identification Number (ITIN)

Effective January 1, 2013, the IRS implemented new procedures that affect the Individual Taxpayer Identification Number (ITIN) application process. Some of the information below, including the documentation requirements for individuals seeking an ITIN, has been superseded by these changes. Taxpayers and their representatives should review these program changes,which are further explained in these Frequently Asked Questions, before requesting an ITIN.  

Effective January 1, 2013, authorized representatives for Certifying Acceptance Agents are required to complete forensic training and submit the original certificate of completion with their Form 13551 "Application to Participate in the IRS Acceptance Agent Program."

Effective January 1, 2013, Individual Taxpayer Identification Number(s) (ITIN) issued on or after January 1, 2013, will expire on December 31st five years after the ITIN was issued. For more information, taxpayers and their representatives should review the Frequently Asked Questions on the expiration of ITINs.

Acceptance Agents' Alert (Posted July 1, 2010)

Effective July 1, 2010, all applicants applying to become an authorized representative of an acceptance agent or certifying acceptance agent are required to take the mandatory Acceptance Agent training and submit the certification form along with the new, renewing or amended Form 13551.

New ITIN Acceptance Agent Program Changes
(Posted January 7, 2013)

Acceptance Agents Applications - Open Season

The Internal Revenue Service (IRS) will be accepting and processing Forms 13551, Application to Participate in the IRS Acceptance Agent Program, during open season May 1-August 31 of each year for new and renewing applicants. We will continue to accept amended applications throughout the year.

The Acceptance Agent Program processes applications on a first-in, first-out basis. Existing approved acceptance agents who submitted a renewing application that was not rejected can continue to operate under the old agreement until the new agreement is finalized.

General ITIN Information

  • What is an ITIN?
  • What is an ITIN used for?
  • Who needs an ITIN?
  • How do I know if I need an ITIN?
  • How do I apply for an ITIN?
  • When should I apply for an ITIN?
  • Where can I get help with my ITIN application?
  • How and when can I expect to receive my ITIN?
  • When does my ITIN expire?


  • What are the revised application standards for ITINs?
  • Why did IRS change from an ITIN card to an authorization letter?
  • Why did IRS revise the ITIN application process?
  • What documents are acceptable as proof of identity and foreign status?


Before submitting Form 13551 to apply to participate in the Acceptance Agent Program, access and complete the mandatory
Acceptance Agent training

 Additional ITIN Information


  • How can I obtain an ITIN from abroad?
  • Are ITINs valid for identification?
  • Are ITINs valid for work purposes?
  • Can ITINs be used as proof of identification to obtain a state driver's license?
  • What do I do when I am assigned a social security number (SSN)? 
  • What ITIN information is available in Spanish? 
  • What ITIN information is available for tax professionals?
  • What is an ITIN Acceptance Agent?
  • How can I become an acceptance Agent?
  • What information is available for Foreign Property Buyers/Sellers? 
Page Last Reviewed or Updated: 07-Apr-2014