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BusinessVolume 01 | Government Contracting

What Is a UEI Number? Friendly Guide for Businesses and Nonprofits

Everything You Need to Know Before Registering on SAM.gov

Trishia Raymundo·July 5, 2026·6 min read
What Is a UEI Number? Friendly Guide for Businesses and Nonprofits

If you're exploring government contracting for the first time, you've probably come across the term "UEI" and wondered if it's just another government acronym to figure out. The good news is that it's much simpler than it sounds. Once you understand what a UEI is and how it fits into the registration process, you'll have a much clearer picture of how businesses and nonprofits become eligible to work with the federal government.


What Is a UEI Number?

The Unique Entity Identifier, or UEI, is a 12-character alphanumeric identifier assigned to organizations through SAM.gov. It serves as the official identifier for businesses, nonprofits, educational institutions, and government organizations that want to do business with the U.S. federal government.

Think of it as your organization's official identity within the federal procurement system.

Without a UEI, you generally cannot complete a SAM.gov registration, receive federal contracts, apply for many federal grants, or participate in numerous government funding opportunities.

The UEI replaced the long-standing DUNS Number requirement in April 2022. Instead of obtaining an identifier from a third-party company, organizations now receive their UEI directly through SAM.gov.


Why Was the DUNS Number Replaced?

For many years, organizations needed a DUNS Number issued by Dun & Bradstreet before they could register in SAM.

In April 2022, the federal government transitioned to the Unique Entity Identifier to simplify the process and bring identifier management directly into SAM.gov.

Today, you no longer need a DUNS Number to register for federal awards.

This change means organizations only need to work within one official system instead of coordinating between multiple organizations.


Who Needs a UEI?

If your organization plans to interact with the U.S. federal government, there's a good chance you'll need one.

Common examples include:

— Small businesses pursuing federal contracts

— Nonprofit organizations applying for grants

— Educational institutions

— State and local government agencies

— Tribal governments

— Research organizations

— Companies serving as subcontractors when required by a prime contractor

Even if you're not planning to bid immediately, obtaining your UEI early can save valuable time later.


What Can You Do With a UEI?

Your UEI opens the door to several federal opportunities.

These include:

— Registering your organization in SAM.gov

— Competing for federal contracts

— Applying for federal grants

— Becoming eligible for many cooperative agreements

— Building a complete government contracting profile

It's important to understand that receiving a UEI does not automatically make your organization eligible for contracts or grants. It is simply one important step in the registration process.


How Do You Get a UEI?

The process is completed through SAM.gov.

You'll typically:

  1. Create a Login.gov account if you don't already have one.

  2. Begin a new entity registration in SAM.gov.

  3. Enter your organization's legal information.

  4. Verify your entity information.

  5. Receive your Unique Entity Identifier.

Depending on your situation, you may continue with a full SAM registration if you plan to pursue contracts or grants.

The UEI itself is issued at no cost.


Is Getting a UEI Free?

Yes.

The federal government does not charge organizations to obtain a Unique Entity Identifier or to register in SAM.gov.

Be cautious of third-party companies that offer paid registration services. While some businesses choose to hire consultants for assistance, the government itself does not require payment for obtaining a UEI.


How Long Does It Take?

Receiving a UEI can often happen during the registration process, but completing a full SAM registration may take several business days or longer depending on entity validation requirements, documentation, and review times.

If your organization needs to bid on an opportunity with a deadline, it's wise to begin the registration process well in advance.


What Information Will You Need?

Before starting, it's helpful to gather:

— Your legal business name

— Physical business address

— Taxpayer Identification Number (TIN) or Employer Identification Number (EIN), if applicable

— Organizational information

— Banking information if completing a full SAM registration for federal payments

Having accurate information helps avoid delays during entity validation.


How Does a UEI Relate to an NCAGE Code?

One question many international organizations ask is whether they also need an NCAGE code.

The answer depends on where your organization is located.

Businesses based outside the United States generally need an NCAGE (NATO Commercial and Government Entity) code before completing their SAM registration. The NCAGE code verifies your organization's identity for international government procurement purposes and works alongside your UEI during registration.

If your organization is located outside the United States, understanding NCAGE requirements is an important part of preparing for federal contracting.


Common Misconceptions About UEIs

There are several misunderstandings that often confuse first-time applicants.

A UEI is not:

— A business license

— A certification

— A contract award

— A guarantee that you'll receive government funding

Instead, it's your organization's official identifier within the federal procurement ecosystem.

Think of it as the foundation that allows the rest of your government registration process to happen.


Final Thoughts

Government contracting can feel intimidating when you're first learning the terminology, but every organization starts in the same place.

The UEI is one of the first milestones in that journey. Once you have it, you'll be ready to move forward with SAM registration, understand where an NCAGE code fits into the process if you're an international entity, and begin preparing your organization for federal opportunities.

Every successful government contractor started with these same first steps. Taking the time to understand them now will make the rest of the process much easier.

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