Service Tree

The Service Tree lists all services in "branched" groups, starting with the very general and moving to the very specific. Click on the name of any group name to see the sub-groups available within it. Click on a service code to see its details and the providers who offer that service.

Individual Taxpayer Identification Numbers

Taxonomy Code: DF-7000.3400

Tax processing numbers issued in the United States by the Internal Revenue Service to certain nonresident and resident aliens, their spouses, and dependents who are unable to get a Social Security Number (SSN). Applicants must complete and submit a Form W-7 with required documentation substantiating foreign/alien status and the individual's true identity. Applicants may either mail the documentation, along with the Form W-7, to the closest IRS Service Center, present it at an IRS walk-in office, or process the application through an Acceptance Agent authorized by the IRS. Applicants not currently in the U.S. can apply from abroad.

See providers who offer this service »

See the parent category of this service »