SAM.gov Registration Guide: Step-by-Step Requirements & Checklist (2026)

Registering on SAM.gov is the mandatory first step for any business seeking U.S. federal government contracts or grants. It is free to register directly with the government, but the process is strict about data accuracy — a single mismatch between your legal business name and public registry records can add weeks of delay.

1. Obtain Your Unique Entity ID (UEI)

The old DUNS number has been fully retired and replaced by the SAM Unique Entity ID (UEI), issued directly inside SAM.gov during registration. Before you start, confirm your entity's legal name and physical address match exactly what is on file with your state's business registry — SAM.gov's validation step checks against this data automatically, and mismatches are the single most common cause of registration delays.

2. Gather Your Core Business Documentation

Have the following ready before you begin: your EIN (Employer Identification Number) from the IRS, your bank account and routing number for electronic funds transfer, your NAICS codes (see below), and your business start date and physical address as they appear on your Articles of Incorporation or equivalent formation document.

3. Select Your NAICS and PSC Codes

Federal solicitations are classified by North American Industry Classification System (NAICS) codes and Product Service Codes (PSCs). Select every code that genuinely reflects a capability you can perform — contracting officers and set-aside eligibility checks are built around these codes, and choosing too narrowly means missing opportunities you could have qualified for.

4. Complete Your Representations & Certifications

This section covers business size standards, socioeconomic status, and compliance certifications (labor standards, environmental, and so on). If you may qualify for a small business set-aside designation — 8(a), HUBZone, SDVOSB, or WOSB — mark it here; see our Set-Aside Programs guide for what each one actually requires.

Common Registration Mistakes to Avoid

The most frequent causes of registration rejection or delay: a business name that doesn't exactly match state records (including punctuation and suffixes like "LLC"), an inactive or mismatched EIN, and incomplete banking information for EFT. Registration must also be renewed annually — an expired registration makes you ineligible to be awarded a contract even mid-proposal, so calendar your renewal date the day you register.

Frequently Asked Questions

How long does SAM.gov registration take? Typically 2–3 weeks once submitted, longer if any validation step fails and requires resubmission.

Is SAM.gov registration really free? Yes. Registering directly at SAM.gov costs nothing. Be cautious of third-party sites that charge a fee to "register" you.

Do I need to renew every year? Yes — registration expires 12 months after activation and must be renewed to remain eligible for contract award.