Small Business Set-Asides: How the Government Reserves Contracts for Small Businesses

What is a small business set-aside?

When an agency restricts a competition to small businesses, larger companies can’t bid as the prime contractor. You compete only against firms of similar size, which is the single biggest advantage the federal market gives a small company.

Set-asides are not a niche. They cover everything from office supplies and janitorial services to software development and construction, and a large share of smaller federal purchases are reserved for small businesses by default. For a company without federal past performance, set-asides are usually the most realistic place to win a first prime contract, because the field is smaller and the competitors face the same limits you do.

Types of set-asides you’ll see

• Total small business set-aside. Only firms that are small under the solicitation’s NAICS size standard may bid. No certification is needed; your size representation in SAM.gov is enough.
• Partial set-aside. Part of a requirement, such as some line items or a share of the quantity, is reserved for small businesses and the rest is competed openly.
• Socioeconomic set-asides. Restricted to SBA-certified 8(a), HUBZone, service-disabled veteran-owned (SDVOSB), women-owned (WOSB) or economically disadvantaged women-owned (EDWOSB) firms. The Department of Veterans Affairs also sets aside work for veteran-owned small businesses.
• Set-aside orders. Under a multiple-award contract, an agency can reserve individual task or delivery orders for the small businesses that hold that contract.

Every notice on SAM.gov states its set-aside type, which makes it the first filter to apply when you search. If terms like sources sought or IDIQ are new to you, keep our government contracting glossary open as you read.

How the rule of two works

The rule of two is the test at the center of small business contracting. If the contracting officer reasonably expects offers from two or more responsible small businesses that can compete on market price, quality and delivery, the purchase is set aside for small business. If not, it can be competed full and open.

These dollar figures took effect October 1, 2025, when the FAR’s thresholds were adjusted for inflation. The micro-purchase threshold rose from $10,000 and the simplified acquisition threshold from $250,000.

Here is how it plays out. Say a military base needs grounds maintenance estimated at $280,000. That falls between $15,000 and $350,000, so it is reserved for small businesses unless market research turns up fewer than two capable small firms. If the same work were estimated at $2 million, the contracting officer would first weigh whether it could go to 8(a), HUBZone, SDVOSB or WOSB firms, then whether two or more small businesses in general could do it, and only then consider full and open competition.

What the FAR overhaul changed

The Revolutionary FAR Overhaul rewrote FAR Part 19, and agencies have been adopting the new text through class deviations since late 2025; the Defense Department’s took effect February 1, 2026. The rule of two survived, restated as a single standard for every contract above the micro-purchase threshold.

The notable change is for orders under multiple-award contracts, such as GSA schedules and governmentwide IDIQs. Setting an order aside for small business is left to the contracting officer’s discretion, and that decision generally can’t be protested.

How contracting officers decide

The rule of two turns on market research. Contracting officers review past awards, search SBA’s Small Business Search database, and post sources sought notices and requests for information asking capable firms to respond. A short, specific reply that covers your relevant experience, size, certifications and approach to the work can tip a requirement into a set-aside.

A different order at VA

The Department of Veterans Affairs runs its own version under its Veterans First program. When the rule of two is met, VA sets work aside first for certified SDVOSBs, then for certified veteran-owned small businesses, before other small businesses.

SBA size standards: are you small for this contract?

“Small” isn’t one number. SBA assigns a size standard to every NAICS code, expressed either as average annual receipts or as number of employees, and each solicitation carries one NAICS code chosen by the contracting officer. You must be small under that code’s standard to compete for the set-aside.

• Receipts-based standards. Average annual receipts over your last five completed fiscal years, using total income plus cost of goods sold from your tax returns.
• Employee-based standards. Your average number of employees per pay period over the last 24 months, counting full-time, part-time and temporary staff alike.
• Affiliates count. The receipts and employees of businesses that control you, that you control or that share common control with you are added to your own.
• Timing. Size is generally determined as of the date you submit your initial offer including price.

Because standards vary widely by industry, the same company can be small for one NAICS code and other than small for another. See our guide to choosing NAICS codes for how to pick yours.

How to check your size for a specific bid

1. Find the NAICS code in the solicitation or the SAM.gov notice.
2. Look up that code’s size standard in SBA’s table of size standards or its size standards tool.
3. Calculate your average receipts or employee count the way SBA defines it, including any affiliates.
4. Make sure the code is in your SAM.gov registration, so your size representation covers it when you submit the offer.

Set-asides for 8(a), HUBZone, SDVOSB and WOSB firms

Above the simplified acquisition threshold, contracting officers consider SBA’s four socioeconomic programs before a general small business set-aside. There is no order of precedence among the four; the agency chooses based on its market research and its goals.

• 8(a). Competitive 8(a) set-asides, plus requirements an agency offers to SBA for award to a specific 8(a) firm.
• HUBZone. Set-asides and sole-source awards, plus a 10% price evaluation preference when HUBZone firms compete in full and open competitions.
• SDVOSB. Set-asides and sole-source awards at any agency.
• WOSB and EDWOSB. Set-asides and sole-source awards only in NAICS codes SBA designates for the program, some of them limited to EDWOSBs.

Unlike a total small business set-aside, each of these requires SBA certification, including VetCert for SDVOSBs. Our guide to SBA certifications covers who qualifies, how to apply and what changed in the 8(a) program in 2026.

Joint ventures on set-asides

You don’t always have to bid alone. A joint venture of small businesses can generally compete as small when each partner is small under the solicitation’s NAICS code. Through the SBA Mentor-Protégé Program, a small protégé can also team with a larger mentor, and their joint venture can bid on any set-aside the protégé qualifies for, as long as the protégé performs at least 40% of the joint venture’s work. Joint ventures have their own agreement and paperwork requirements, so plan them well before a deadline.

Sole-source contracts for small businesses

A sole-source contract goes to one company without competition. Each socioeconomic program allows it below a dollar ceiling that includes options. The ceilings below reflect the October 2025 inflation adjustment.

Sole-source awards don’t come from bidding; they come from relationships. The agency has to know you exist, believe you can do the work, and choose the sole-source route. That means marketing directly to program offices and agency small business specialists, with a capability statement that maps your experience to their needs.

The federal small business goals

Set-asides exist largely because of statutory goals. Each year the government aims to award at least these shares of prime contract dollars:

Two of these moved recently. The SDVOSB goal rose from 3% to 5% under the National Defense Authorization Act for fiscal 2024. The SDB goal went the other way in practice: agencies had been working toward an administrative 15% target for fiscal 2025, and SBA reset it to the 5% statutory level in early 2025.

The goals are floors, not caps. SBA negotiates individual goals with each agency every year and grades them on its public Small Business Procurement Scorecard; for fiscal 2025, SBA reported that small businesses received nearly 28% of prime contract dollars. Large prime contractors also carry small business targets in their subcontracting plans.

The practical takeaway: agency small business offices are measured on these numbers, so they have a reason to talk to capable small firms. Use that when you ask for a meeting.

Rules that come with a set-aside award

Winning a set-aside comes with obligations designed to keep the work with small businesses.

Limitations on subcontracting

You can’t hand most of the work to companies that don’t share your status. The FAR clause caps what you may pay subcontractors that aren’t “similarly situated” (on a small business set-aside, another small business is similarly situated) as a share of what the government pays you:

• Services: no more than 50%.
• Supplies: no more than 50%, excluding the cost of materials.
• General construction: no more than 85%, excluding materials.
• Special trade construction: no more than 75%, excluding materials.

The nonmanufacturer rule

If you supply products you don’t make on a set-aside supply contract, you generally must furnish items made by a small business manufacturer, unless SBA has waived the rule for that class of product. Read the clauses closely on any supply bid.

Honest representations

Your size and status representations carry legal weight. A competitor that doubts your eligibility can file a size or status protest, and SBA decides it. Misrepresentation can bring serious penalties, so keep your SAM.gov representations current and accurate.

How to find set-asides you qualify for

1. Search SAM.gov by NAICS code and set-aside type. Save a search for each combination you qualify for, including total small business set-asides alongside any certification-based ones.
2. Watch early-stage notices. Sources sought notices, requests for information and agency procurement forecasts show what is coming while there is still time to influence the set-aside decision.
3. Complete your Small Business Search profile. Contracting officers use SBA’s database for market research. Your keywords, NAICS codes, certifications and capability narrative are how they find you.
4. Study past awards. Award data shows which agencies buy what you sell and how often they use each set-aside type.
5. Use free help. APEX Accelerators can set up bid searches, review your capability statement and walk you through a solicitation. See our guide to free government contracting help.

Matching tools can run the daily search for you. BidForge, for example, monitors SAM.gov and scores each opportunity against your NAICS codes, set-aside certifications, past performance and capabilities. Whatever you use, make sure its set-aside filters match your actual eligibility.

Our guide to finding government contracts covers the search side in depth, and when you are ready to compete, read how to win your first federal prime contract.

Frequently asked questions