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What Is a UEI Number and How to Register for SAM.gov

Practical, current guidance built on real SAM.gov data — written for small businesses that want to win federal work.

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What the UEI is

SAM.gov assigns every entity a UEI (previously DUNS). It is free, generated once at registration, and stays with your entity. You will use it in every bid, invoice and reporting system from FPDS to USAspending.

How to register

Go to SAM.gov, create a login.gov account, start a new entity registration and follow the steps: entity information, core data, points of contact, certifications, and financial information. Registration is free — beware third-party sites charging fees.

Register early, search constantly

Registration and validation can take days to weeks, and lapses in annual renewal block awards. Do it now — then start watching opportunities immediately. A radar fills the gap between registration and your first eligible posting.

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Free 7-day trial · No card required · Daily email digest of new opportunities matching your NAICS and set-asides.

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