IRS TIN Match (e-Services) — Guidance #05

InReview

Internal Revenue Service · v2025-05-18 · Guidance · effective 2/21/2026

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Section 1. IRS TIN Match (e-Services) establishes obligations relating to TIN, W-9, identity. Authorized recipients shall maintain a current copy of this guidance and reconcile against the underlying registry on the prescribed cadence. Where ambiguity exists between this document and the governing authority cited at IRC § 3406 (backup withholding); Rev. Proc. 2003-9, the governing authority controls. Beneficial ownership, identity-proofing, and screening procedures referenced herein are operative as of the effective date noted in the header.
Section 2. IRS TIN Match (e-Services) establishes obligations relating to TIN, W-9, identity. Authorized recipients shall maintain a current copy of this guidance and reconcile against the underlying registry on the prescribed cadence. Where ambiguity exists between this document and the governing authority cited at IRC § 3406 (backup withholding); Rev. Proc. 2003-9, the governing authority controls. Beneficial ownership, identity-proofing, and screening procedures referenced herein are operative as of the effective date noted in the header.
Section 3. IRS TIN Match (e-Services) establishes obligations relating to TIN, W-9, identity. Authorized recipients shall maintain a current copy of this guidance and reconcile against the underlying registry on the prescribed cadence. Where ambiguity exists between this document and the governing authority cited at IRC § 3406 (backup withholding); Rev. Proc. 2003-9, the governing authority controls. Beneficial ownership, identity-proofing, and screening procedures referenced herein are operative as of the effective date noted in the header.
Section 4. IRS TIN Match (e-Services) establishes obligations relating to TIN, W-9, identity. Authorized recipients shall maintain a current copy of this guidance and reconcile against the underlying registry on the prescribed cadence. Where ambiguity exists between this document and the governing authority cited at IRC § 3406 (backup withholding); Rev. Proc. 2003-9, the governing authority controls. Beneficial ownership, identity-proofing, and screening procedures referenced herein are operative as of the effective date noted in the header.