Federal Procurement
Search Employer Identification Number / Taxpayer Identification Number government contracts, grants, and federal opportunities.
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A glossary tracked by Bureauify. See sources and related records below.
Employer Identification Number / Taxpayer Identification Number Government Contracts & Federal Records
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Explore all federal records for Employer Identification Number / Taxpayer Identification Number — contracts, grants, spending, research, and more. Refreshed every 30 minutes from official sources.
A nine-digit number assigned by the Internal Revenue Service (IRS) to business entities for tax reporting purposes. The EIN serves as the federal tax ID for corporations, partnerships, LLCs, and other business entities. In government contracting, the EIN/TIN is used to verify tax compliance, process payments, and link entities across federal financial systems.
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Ask about EIN/TINApply directly with the IRS using Form SS-4, available online at irs.gov. Online applications receive an EIN immediately. Sole proprietors may use their Social Security Number (SSN) instead of an EIN, though obtaining an EIN is recommended for government contracting to separate business and personal tax identities.
The EIN/TIN is required for SAM.gov registration, IRS tax compliance verification (FAPIIS), and electronic funds transfer setup. It appears on W-9 forms submitted to contracting agencies, tax withholding documents, and 1099 reporting. The IRS provides tax compliance data to contracting officers through the Federal Awardee Performance and Integrity Information System.
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Bureauify. (2026). Employer Identification Number / Taxpayer Identification Number — Federal Contract Intelligence. Bureauify Federal Intelligence. Retrieved , from https://bureauify.com/glossary/ein-tin
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