By Dr. Shirley Ayangbah, Founder and Lead Strategist, Global Economic Research Consulting (GERC)
A UEI (Unique Entity ID) is a 12-character alphanumeric identifier issued by SAM.gov. Since April 4, 2022, it has replaced the DUNS number as the official identifier for businesses and organisations that work with the federal government. It is free.
Who needs a UEI?
- Businesses bidding on federal contracts
- Nonprofits, universities, local governments and tribes applying for federal grants
- Subrecipients of federal awards
- Many state and local agencies that ask for a UEI on vendor forms
How to get a UEI
There are two options on SAM.gov:
- UEI only. If you only need an ID, for example as a grant subrecipient, you can request a UEI without completing full registration.
- Full entity registration. If you want to bid on federal contracts or apply for grants directly, complete a full SAM.gov registration. You receive your UEI during the process, and U.S. businesses also receive a CAGE code.
Entity validation: the step that stalls most registrations
To issue a UEI, SAM.gov validates your legal name and physical address against official records. Mismatches with IRS or Secretary of State records, abbreviations, or a missing suite number are the most common reasons for delay. Prepare your formation documents and IRS letter before you start. If you are stuck, see UEI and entity validation help.
How to look up a UEI
- Use the entity search on SAM.gov and search by business name. Only entities that have chosen public display will appear.
- Sign in to SAM.gov to see your own UEI in your workspace.
- Check a past federal award or grant record, which usually shows the UEI.
Frequently asked questions
Is my DUNS number still valid?
No. The DUNS number is no longer used for federal awards. Your UEI replaced it in 2022.
Does a UEI expire?
The UEI itself does not expire, but a full SAM.gov registration must be renewed every 12 months to stay active. See SAM.gov renewal help.
Should I pay for a UEI?
No. SAM.gov is free. Be careful with websites that charge a government fee.
About the author
Dr. Shirley Ayangbah is the founder of Global Economic Research Consulting, a woman-owned, California-certified Small Business (Micro) and SB-PW firm in San Bernardino (Certification ID 2045992; CAGE 11SD2). She holds a PhD in International Economic and Financial Law and an MA in Economics. Call (909) 454-7076 or book a consultation.
Ready to win government work?
GERC helps small businesses and nonprofits nationwide get registered, get certified and win contracts and grants. Tell us where you stand and we will map out your next steps, with no obligation.
Prefer to talk now? Call (909) 454-7076 or email info@gercconsulting.com.

