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How may I find out more about the TIN Matching Program?

Potential users are encouraged to review the e-Services home page at, https://www.irs.gov/tax-professionals/taxpayer-identification-number-tin-matching. An On-Line Tutorial provides a full range of information for Interactive and Bulk TIN Matching, as well as other e-Services products.

For additional information see Publication 2108a, Online TIN Matching Program.