Obtaining a Unique Entity ID (UEI) through SAM.gov in 2025 requires specific documentation: legal business name, physical address, entity classification details, designated point of contact, and government entity status if applicable. International entities must also secure an NCAGE code. Complete all mandatory fields accurately, guarantee business names match across documents, and maintain current entity information to avoid registration delays. Regular verification and prompt updates maintain compliance status. The following steps provide a detailed roadmap for successful UEI registration and maintenance.
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ToggleEssential UEI Documentation for Complete SAM Registration

When registering with the System for Award Management (SAM.gov), entities must prepare specific documentation to obtain their Unique Entity Identifier (UEI). The registration timeline typically depends on how prepared an entity is with the required documentation.
Entities need to gather several key items before starting the process:
- Basic entity information, including legal business name and physical address
- Entity classification details (corporation, partnership, or other business type)
- Designated point of contact information for SAM.gov communications
- Indication of government entity status, if applicable
For organizations seeking federal awards, this documentation is mandatory.
International entities require additional preparation, as they must obtain an NCAGE code before SAM registration, while domestic entities bidding on contracts need a CAGE code. The UEI number has replaced the previously required DUNS number as the primary identifier for government contracting. A stable, long-term email address is essential as changing it later involves multiple complicated steps. The UEI consists of a 12-character identifier used exclusively by the federal government to track entities receiving federal funds.
Step-by-Step UEI Verification Process for Government Contractors

Maneuvering the UEI verification process requires government contractors to follow specific steps to ascertain compliance with federal regulations. The process begins with registering the entity on SAM.gov, where the system automatically assigns a 12-character alphanumeric UEI during registration.
Contractors must validate all entity information for accuracy to prevent delays in UEI assignment. Once obtained, maintaining an active SAM registration is essential to preserve UEI validity. Regular UEI updates ascertain continued eligibility for federal funding and streamlined contracting processes.
One of the primary UEI benefits is its function as a unified identifier across federal systems, simplifying entity identification. Contractors should routinely verify their UEI status through SAM.gov’s verification tools and promptly address any discrepancies to maintain compliance with government requirements. This unique identifier system is mandatory for all organizations seeking to engage in federal contracts or grants.
Common UEI Registration Errors and How to Avoid Them

Successful UEI registration often hinges on avoiding common errors that can delay federal contracting opportunities. Registration pitfalls frequently stem from incomplete mandatory fields, mismatched business names, and outdated entity information in SAM profiles.
Entity discrepancies represent another major challenge, particularly when addresses in UEI records don’t match banking documents or when legal entity details contain inconsistencies. Organizations commonly overlook DUNS-to-UEI conversion requirements following mergers or rebranding, leading to identifier conflicts. Setting reminders for key deadlines and utilizing calendar alerts can prevent these issues during the registration process. If users encounter a 404 error while attempting to access registration portals, they should use the site’s search functionality to locate alternative access points.
Documentation shortcomings, including missing notarizations and expired operating licenses, trigger automatic rejections. Process negligence, such as missed renewal deadlines and failure to monitor validation confirmations, further complicates UEI maintenance. Maintaining accurate records throughout the registration lifecycle is essential for preventing validation errors that could compromise compliance status.
Contractors should implement quarterly audits of their registrations, promptly update organization changes, and carefully review all submissions before finalizing their UEI registration.
Frequently Asked Questions
How Long Does a UEI Number Remain Valid After Issuance?
UEI numbers do not expire once assigned. However, entity registrations in SAM.gov require annual renewal. While the UEI itself has no expiration date, maintaining active SAM registration is necessary for UEI renewals and continued validity.
Can I Transfer My UEI to Another Business Entity?
UEI numbers cannot be transferred between business entities. When transferring ownership, the new entity must complete its own SAM registration process to obtain a unique UEI specific to their business registration information.
What Happens to My UEI During Company Name Changes?
During company name changes, the UEI remains unchanged and permanently attached to the entity. Organizations must update their SAM.gov profile with legal documentation, but the UEI itself is not affected by name changes alone.
Are UEI Requirements Different for Joint Ventures?
Joint venture eligibility follows standard UEI compliance requirements. Joint ventures must obtain their own unique UEI through SAM.gov registration, disclosing partner information and specifying joint venture status during the application process.
How Do Tribal Entities Handle UEI Registration Requirements?
Tribal entities register for UEIs through SAM.gov, requiring their legal name and physical address. The registration process respects tribal sovereignty while ensuring compliance with federal grant requirements for accessing funding opportunities.