How to Determine If You’re a Small Business for Federal Contracting Purposes (2026 Guide)

If you’re chasing set-aside contracts, your small business status is the gateway to almost everything: 8(a), WOSB, SDVOSB, HUBZone — none of it matters if you don’t first qualify as “small” under the U.S. Small Business Administration’s (SBA) size standards. And right now is an unusually important time to understand how that works, because SBA just proposed the biggest rewrite of its size standards system in decades.

Here’s exactly how size status is determined today — and what’s about to change.

Quick Takeaways

• Size standards are tied to your NAICS code and measured by either average annual receipts or average number of employees, depending on the industry.
• Receipts are averaged over your latest 5 fiscal years; employees are averaged over your latest 24 months — not 12.
• Affiliation (with parent companies, sister companies, or economically dependent partners) can push you over the limit even if your own numbers look small.
• On August 20, 2026, SBA proposed a sweeping overhaul that would consolidate size standards, restructure how NAICS codes are used, and raise thresholds for hundreds of industries. It is not final — the comment period runs through September 21, 2026.

1. Identify Your Primary NAICS Code

Your size standard depends entirely on your industry classification.

• Choose the NAICS code that best matches your primary business activity.
• Use the NAICS search tool on the Census Bureau or SBA website.
• Many firms qualify under multiple NAICS codes, but each has one primary code — typically the one generating the most revenue.

2. Find the SBA Size Standard for Your NAICS Code

Once you know your NAICS code, look up the matching threshold in SBA’s Table of Small Business Size Standards.

Size standards come in two flavors:

1. Employee-based — common in manufacturing, mining, and some other industries.
2. Revenue-based (average annual receipts) — used for construction, most services, and the majority of NAICS codes.

Typical current thresholds:

• Employees: 100 to 1,500, depending on the industry.
• Receipts: roughly $9 million on the low end up to $47 million for some retail and services industries (a handful of niche categories fall outside this range in either direction).

3. Calculate Your Size the Right Way

SBA doesn’t let you eyeball this — its regulations spell out specific, mandatory calculation methods.

A. If Your Standard Is Based on Annual Receipts

• SBA uses a 5-year average of total receipts (this replaced the old 3-year average in 2019).
• The average includes the receipts of your affiliates.
• “Receipts” means total income plus cost of goods sold — essentially your gross receipts as reported on your tax return.
• You do not subtract other expenses.
• All revenue counts, worldwide.
• If you acquired or sold a business during the measurement period, special rules apply — the receipts of the acquired/sold entity generally have to be included for the full period.

B. If Your Standard Is Based on Number of Employees

This is the part that trips people up, because the rule changed a few years ago and a lot of guidance online still hasn’t caught up.

• SBA now uses your average number of employees over the trailing 24 months — not 12. This changed via a July 2022 final rule implementing the FY2021 NDAA.
• Count every individual on payroll — full-time, part-time, or temporary — as one employee, regardless of hours worked.
• Include employees of your affiliates.
• Temp agency workers generally count under the employer-of-record (usually the staffing agency, not you).
• If you haven’t been in business for 24 months, SBA averages your employee count over however many pay periods you have been operating.

4. Check for Affiliation — Where Many Firms Get It Wrong

SBA determines your size including affiliates: other entities you control, that control you, or that share common interests with you. Affiliation is the single biggest reason otherwise-“small” companies get disqualified.

You may be affiliated with another company if:

• You own or control 50% or more of another firm.
• You have significant influence through key management roles or “negative control” (e.g., the power to block major decisions, even without majority ownership).
• You share common owners who, together, have the ability to control both companies.
• You have economic dependence — SBA presumes affiliation where a firm derives 70% or more of its receipts from a single other company over the preceding three fiscal years, absent evidence rebutting that presumption (13 CFR § 121.103(f)).

A note on franchises: older guidance often claimed that franchise agreements automatically make a franchisee affiliated with (and therefore “not small” relative to) its franchisor. That’s outdated. Under current federal contracting size regulations (13 CFR § 121.103(i)), SBA generally will not find affiliation based on the existence of a franchise or license agreement alone — as long as the franchisee has the right to profit from its own efforts and bears the risk of loss like any independent owner. Affiliation can still arise through other means, like common ownership, common management, or a franchise agreement that excessively restricts the franchisee’s ability to sell its interest — but the franchise relationship itself isn’t an automatic disqualifier the way it once was treated. If you’re a franchisee and want a second opinion on your specific agreement, reach out to us at support@govology.com and we can connect you with a GovCon attorney who can review your documents.

Affiliation can dramatically change your size status, so this step deserves real attention — not a rubber stamp.

5. Use SBA’s Free Size Standards Tool

SBA offers an online tool where you can:

• Enter your NAICS code
• Enter your 5-year average receipts or 24-month average employee count
• Get an instant determination

Search “SBA Size Standards Tool” in your browser to find the current version, or start from SBA’s size standards page.

6. Represent Your Small Business Status in SAM.gov

Once you know your status:

1. Populate or update it through your SAM.gov registration — you’ll be prompted to enter revenue and employee figures. Update these annually, or more frequently if your numbers change.
2. Add your relevant NAICS codes during registration or renewal.
3. SAM.gov automatically calculates your size status based on what you enter. You (and anyone else) can view NAICS-by-NAICS size status at SBA’s Small Business Search, unless you’ve opted out of public record search.

Prime contractors and contracting officers rely on this self-certification, so accuracy matters.

7. Remember: Size Status Is NAICS-Specific

A company can be:

• Small for one NAICS code, and
• Other than small for another.

Your status depends on the NAICS code assigned to the specific contract you’re pursuing — not a single, company-wide label.

8. Size Is Determined at the Time of Offer

For most competitive procurements, your size status locks in on the date you submit your initial offer (including price). For long-term IDIQs, size is typically locked at award, though certain contract clauses and recertification triggers (such as a merger, acquisition, or change of controlling interest) can require you to recertify mid-contract.

Example

If your NAICS standard is $19 million in receipts, and your 5-year average annual receipts — including affiliates — equal $17 million, you qualify as small.

If your NAICS standard is 500 employees, and you average 420 employees over the last 24 months — including affiliates — you qualify as small.

The Big Change Coming: SBA’s Proposed Size Standards Overhaul (August 2026)

On August 20, 2026, SBA published a sweeping proposed rule (91 FR 53741) alongside a companion Revised Size Standards Methodology white paper — the third five-year review required under the Small Business Jobs Act of 2010. If finalized, this would be the most significant restructuring of size standards in years. Highlights:

• Fewer, simpler standards. SBA would collapse roughly 1,000 individual size standards (set at the 6-digit NAICS level) down to 338 standards, calculated instead at a mix of the 4-digit and 5-digit NAICS level. All current NAICS-specific “exceptions” would be eliminated.
• One rule instead of two. Receipts-based and employee-based standards, currently published separately, would be combined into a single unified rule.
• More industries shift to employee-based standards. The proposed methodology defaults to employee-based standards wherever SBA has discretion, reversing the current preference for receipts-based standards outside manufacturing and services.
• New methodology. Instead of the current seven-factor formula, SBA would calculate an “average market size” from three factors — national industry size, number of geographic markets, and an adjustment for imports/exports — to set each standard.
• A productivity adjustment, for the first time. Monetary-based standards would be adjusted for productivity growth in addition to inflation.
• No standards would go down. Even in the roughly 45 industries where the new formula suggested a decrease, SBA is proposing to hold size standards at their current level rather than lower them.
• Net effect: SBA estimates about 114,541 more businesses would newly qualify as small, including roughly 37,000 firms already holding federal contracts worth an estimated $71 billion in FY2025 activity.

This is a proposed rule, not a final one. Nothing changes for your certification today. SBA is accepting public comments through September 21, 2026, via regulations.gov. If you have thoughts on how this would affect your NAICS code, this is the window to weigh in — and it’s worth checking whether your specific industry is among those slated for a higher (or unchanged) threshold before you make growth decisions based on today’s numbers.

Bottom Line

Determining your small business size status comes down to three things: the right NAICS code, the right calculation method (5-year receipts average or 24-month employee average), and an honest look at affiliation. Get any one of those wrong, and you risk a size protest — or worse, losing a contract you already won. And with SBA’s proposed overhaul on the table, the numbers you’re checking against today could look different by this time next year.