A small business guide to federal set-aside contracts
Set-asides are how the federal government steers a share of its spending to small businesses. This plain-English guide explains what a set-aside is, the programs you might qualify for, and exactly how to register on SAM.gov so you can start bidding.
What is a set-aside?
A set-aside is a federal contract — or a portion of one — that the government reserves for small businesses, instead of opening it to full and open competition with companies of any size. When a contract is set aside, only businesses that meet the program's eligibility rules are allowed to compete or be awarded.
They exist because Congress directs federal agencies to put a meaningful share of their spending toward small business — the government-wide goal is to award at least 23% of federal contracting dollars to small firms each year, with additional targets for women-owned, service-disabled veteran-owned, HUBZone, and disadvantaged businesses. Set-asides are the main tool agencies use to hit those targets.
A contracting officer generally must set a contract aside for small business when they reasonably expect at least two capable small businesses to bid at a fair market price. This is why so much federal work never reaches open competition — and why being registered and certified puts you in the room.
Most set-asides are competitive — eligible small businesses bid against each other. Some programs (8(a), HUBZone, SDVOSB, WOSB) also allow a sole-source award, where an agency can award directly to one qualified firm without a competition, up to certain dollar limits. A contract can be totally set aside, or split into a partial set-aside so only part of it is reserved for small business.
The set-aside programs
There are two layers. A general small-business set-aside is open to any business that meets the SBA size standard for the work. Within that, several socioeconomic programs reserve contracts for specific kinds of small businesses — and most require a certification before you can bid. These are the programs you'll see on this site:
8(a) Disadvantaged
Contracts reserved for firms in the SBA's 8(a) Business Development program — small businesses owned by socially and economically disadvantaged individuals.
Women-Owned
Contracts set aside for certified Women-Owned Small Businesses (WOSB) in industries where women are underrepresented.
Econ. Disadv. Women-Owned
Contracts reserved for Economically Disadvantaged Women-Owned Small Businesses (EDWOSB) — a subset of the WOSB program with added financial-need criteria.
Disabled Veteran-Owned
Contracts set aside for Service-Disabled Veteran-Owned Small Businesses (SDVOSB), certified through the VA's VetCert program.
Veteran-Owned
Contracts set aside for Veteran-Owned Small Businesses (VOSB), primarily awarded by the Department of Veterans Affairs.
HUBZone
Contracts set aside for small businesses located in a Historically Underutilized Business Zone (HUBZone) that employ residents of that zone.
Small Business
Contracts set aside for any small business that meets the SBA size standard for the solicitation's NAICS code.
Native American (IEE)
Contracts set aside for Indian Economic Enterprises (IEE) — businesses owned by federally recognized tribes or Native American individuals.
How to get started
Four phases take you from zero to your first bid.
- 1
Register in SAM.gov — it's free
Every federal vendor needs an active SAM.gov registration. It costs nothing, it assigns your UEI and CAGE code, and it's where you list your NAICS codes and self-certify your size.
See the registration stepsarrow_forward - 2
Get certified for the programs you qualify for
A general small-business set-aside only needs your self-certified size — no extra paperwork. The socioeconomic programs (8(a), WOSB/EDWOSB, HUBZone) are certified by the SBA at certifications.sba.gov; the veteran programs (VOSB/SDVOSB) go through the SBA's VetCert. Get certified before you bid on those set-asides.
Compare the programsarrow_forward - 3
Find the right opportunities
Watch SAM.gov, or browse this board to see set-asides rewritten in plain English and filtered to your programs and NAICS codes. Read 'Sources Sought' and presolicitation notices early — responding to them is how you shape a requirement before the solicitation is even written.
Browse all opportunitiesarrow_forward - 4
Submit a responsive, compliant bid
Read the entire solicitation, answer every requirement in the order it's asked, send the contracting officer your questions before the Q&A deadline, and submit before the clock runs out. A strong bid that misses one mandatory item still gets disqualified.
Registering and renewing at sam.gov costs nothing. Third-party companies that offer to "register you" for a fee are optional middlemen — everything in this guide you can do yourself, for free.
What SAM.gov is, and why you need it
SAM stands for the System for Award Management — the U.S. government's official registry of businesses that want to work with federal agencies. An active registration is a prerequisite to bid, be considered, and get paid on federal contracts.
It's also where you self-certify your business size, declare the NAICS codes that describe your work, and complete your federal Representations & Certifications. The rest of this page splits the two situations that trip people up: a brand-new registration and the annual renewal.
New registration, step by step
First-time registration. Gather the items below before you start — having them ready is the difference between a smooth registration and weeks of back-and-forth.
What you'll need before you start
- check_circleYour legal business name and physical street address — exactly as they appear on IRS and bank records (mismatches cause most delays).
- check_circleYour EIN / Taxpayer ID (TIN).
- check_circleYour bank routing and account numbers, for electronic payment (EFT).
- check_circleThe NAICS code(s) that describe what your business does.
- check_circleA Login.gov account (you'll create one if you don't have it).
- 1
Create or sign in with a Login.gov account
SAM.gov uses Login.gov for sign-in. Set up a free Login.gov account first, then use it to sign in to SAM.gov.
- 2
Get or confirm your UEI (Unique Entity ID)
SAM.gov assigns your UEI during registration — it replaced the old DUNS number, so there's nothing separate to buy. If you've validated your business before, you may already have one.
- 3
Complete entity validation
SAM.gov matches your legal business name and physical address against official records. Enter them exactly as they appear on your IRS and bank documents — a mismatch here is the single most common cause of delays.
- 4
Enter your core data and banking info
Fill in your business details and the bank routing and account numbers for electronic funds transfer (EFT), so the government can pay you.
- 5
Answer the Reps & Certs
Complete the federal Representations and Certifications — your size status, NAICS codes, and any socioeconomic certifications. These are legal attestations, so answer honestly.
- 6
Add your points of contact
List the people SAM.gov and contracting officers can reach about your registration.
- 7
Submit and wait for your CAGE code
A CAGE (Commercial and Government Entity) code is assigned during processing. Your registration shows as Active once everything clears.
A realistic timeline
It's not instant. Approval often takes about 7–10 business days, and 3–4 weeks for brand-new businesses or if entity validation hits a snag. Start well before any deadline you care about — and remember, it's free.
Annual renewal
Your SAM.gov registration expires every 365 days, and it does not renew itself.
If your registration goes inactive, you can be dropped from active solicitations and can't be awarded. Renew about 30–60 days early. SAM.gov emails the entity administrator at 60, 30, and 15 days before expiration.
- 1
Sign in via Login.gov and open your existing entity registration.
- 2
Review and update every section — addresses, NAICS codes, size, bank/EFT info, and points of contact. Fix anything that's changed.
- 3
Re-sign the Reps & Certs — they have to be re-attested at each renewal.
- 4
Submit, then confirm the new expiration date and that your status is back to Active.
Assign at least two Login.gov administrators to your entity, so you're not locked out of renewing if one person leaves.
Key terms every contractor should know
Federal contracting runs on acronyms. Here are the ones you'll hit first.
- Set-aside
- A federal contract reserved for small businesses, so larger companies can't compete for it.
- Sole-source award
- A non-competitive award made directly to one eligible firm. Some programs allow it up to set dollar limits.
- Rule of Two
- The standard that pushes a contract into a small-business set-aside when a contracting officer expects at least two capable small firms to bid at fair-market prices.
- SAM.gov
- The System for Award Management — the government's official registry of businesses seeking federal work. Registering is free.
- UEI (Unique Entity Identifier)
- The 12-character ID SAM.gov assigns your business. It replaced the DUNS number in 2022.
- CAGE code
- Commercial and Government Entity code — assigned during SAM.gov registration to identify your business and its location.
- NAICS code
- North American Industry Classification System — the 6-digit number that classifies what your business does. Every solicitation is tagged with one.
- Size standard
- The SBA's threshold — by employee count or annual revenue — that defines what counts as 'small' for a given NAICS code.
- Reps & Certs
- The Representations and Certifications you complete in SAM.gov: legal attestations about your size, ownership, and eligibility.
- Sources Sought / RFI
- Market-research notices an agency posts before a solicitation to gauge interest and capability. Responding early can shape the final requirement.
- Solicitation (RFP / RFQ / IFB)
- The formal request for offers — Request for Proposals, Request for Quotes, or Invitation for Bids.
- Point of contact (POC)
- The person at the agency you can reach with questions about a specific opportunity.
Common questions
What does 'set-aside' mean in federal contracting?expand_more
It means a contract is reserved for small businesses. Instead of competing against companies of any size, only businesses that meet the program's eligibility rules can bid or be awarded. Set-asides are how the government directs a share of its spending to small firms.
What's the difference between a set-aside and a sole-source award?expand_more
A set-aside is usually competitive — eligible small businesses bid against each other. A sole-source award goes directly to one qualified firm without a competition, which programs like 8(a), HUBZone, SDVOSB, and WOSB allow up to certain dollar limits.
Do I need a certification to bid on a set-aside?expand_more
It depends on the type. A general small-business set-aside only requires that you meet the SBA size standard and self-certify in SAM.gov. The socioeconomic programs — 8(a), WOSB/EDWOSB, HUBZone, and the veteran programs — require an official certification before you can bid.
What is the Rule of Two?expand_more
It's the standard that directs a contracting officer to set a contract aside for small business whenever they reasonably expect at least two capable small businesses to submit fair-market offers. It's a big reason so much federal work is reserved for small firms.
Is SAM.gov registration really free?expand_more
Yes. There's no fee to register or renew at sam.gov. Third-party companies that offer to register you for a fee are optional middlemen — you can do everything yourself for free.
How long does a new registration take?expand_more
Often about 7–10 business days, but it can stretch to 3–4 weeks for brand-new businesses or if entity validation hits a snag. Don't start the week of a deadline.
What is a UEI, and what happened to DUNS?expand_more
The UEI (Unique Entity Identifier) is the ID SAM.gov assigns your business. It replaced the DUNS number in 2022, and SAM.gov issues it directly during registration — there's nothing separate to apply for.
Why did my entity validation fail?expand_more
Almost always a mismatch between your legal name or address and your IRS or other official records. Copy them character-for-character, including punctuation, and they should match.
How often do I have to renew?expand_more
Every 365 days. Your registration doesn't auto-renew, so set a reminder for about 30–60 days before it expires. SAM.gov also emails the entity administrator at 60, 30, and 15 days out.
Do I need SAM.gov before getting an SBA certification like 8(a) or WOSB?expand_more
Yes. You generally need an active SAM.gov registration before you can apply for set-aside certifications such as 8(a), WOSB, HUBZone, or SDVOSB, and before you can bid on the opportunities reserved for them.
Where's the authoritative, up-to-date help?expand_more
SAM.gov's own help center. Its screens and exact steps change over time, so when in doubt, follow the current instructions at sam.gov.
Set-Aside Pro is an independent publication, not affiliated with the SBA, the VA, or SAM.gov. Registering and renewing on SAM.gov are free at sam.gov — be cautious of third-party services that charge for it. Certification rules and SAM.gov's screens change; this is a plain-English overview, not official instructions. Always confirm the current process with the SBA, the VA, or SAM.gov.