# Size standard checker A business is small for a NAICS code when its average annual receipts or its employee count is at or under the SBA size standard for that code in 13 CFR 121.201. For example, NAICS 541512 Computer Systems Design Services has a $34 million receipts standard. Enter a code and your receipts or employees. Enter your NAICS code and your average annual receipts or employee count.Data as of 2026-11-01, from the 13 CFR 121.201 SBA size standards.Official source: [13 CFR 121.201 (eCFR)](https://www.ecfr.gov/current/title-13/section-121.201) ## Key facts | Rule | 13 CFR 121.201 | | --- | --- | | Receipts basis | Average annual receipts, usually over the last 5 fiscal years | | Employee basis | Average employees over the last 24 months | | Affiliates | Counted together with the firm | | Example | 541512: $34 million | ## Get this as JSON ``` curl "https://samgovapi.io/api/v1/naics/541512/size-standard?revenue_usd=20000000" \ -H "Authorization: Bearer sg_YOUR_KEY" ``` MCP tool: `size_standard_check`Keys start free, with no card. [Get a free API key](https://samgovapi.io/sign-up) or read the [docs](https://samgovapi.io/docs). ## Questions Am I a small business?Enter your NAICS code and your average annual receipts or employee count. The checker compares them with the SBA standard for that code. Affiliates count toward the total.Do size standards change?Yes. SBA adjusts them by rulemaking and for inflation. This checker uses 13 CFR 121.201 as published in the eCFR on 1 Nov 2026; any proposed change is not in effect until a final rule.Is this an official size determination?No. Only SBA makes formal size determinations. Use this as a quick check. ## Related - [NAICS code lookup](https://samgovapi.io/naics-code-lookup) - [Size standard](https://samgovapi.io/glossary/size-standard) - [Small business set-aside](https://samgovapi.io/set-aside/total-small-business)Independent. Not affiliated with, endorsed by or sponsored by GSA, SAM.gov or any U.S. government agency. Registering in SAM.gov is free at sam.gov.

---

HTML version: https://samgovapi.io/size-standard-checker . Markdown: https://samgovapi.io/size-standard-checker.md

Independent. Not affiliated with, endorsed by or sponsored by GSA, SAM.gov or any U.S. government agency. Registering in SAM.gov is free at sam.gov.

Get a free API key: https://samgovapi.io/sign-up?ref=ai-claudebot