Every small business that wins a set-aside contract inherits a spending cap it has to prove it met. Under 13 CFR 125.6 and the matching clause at FAR 52.219-14, a services prime "will not pay more than 50% of the amount paid by the government to it to firms that are not similarly situated." The rule is short and the arithmetic looks trivial, but the metric is not what most teams assume, the exclusions carry conditions, and the measurement window shifts depending on how the contracting officer wrote the contract.

Background

The rule exists to stop set-aside dollars from passing straight through a small business to a large one. SBA wants the firm that won the preference to do the work, not broker it. FAR 19.507(e) tells contracting officers where to insert the clause: supplies, services, and construction set-asides above the simplified acquisition threshold; set-aside or sole-source awards under FAR subparts 19.8 (8(a)), 19.13 (HUBZone), 19.14 (SDVOSB), or 19.15 (WOSB) regardless of dollar value; and multiple-award contracts where orders may be set aside for or issued directly to small businesses. FAR 2.101 puts the simplified acquisition threshold at $350,000, with higher figures for contingency and emergency operations ($1 million domestic, $2 million international) and $650,000 for humanitarian or peacekeeping performance outside the United States.

The clause is not inserted where a HUBZone offeror waived the price evaluation preference or is other than small. Everywhere else, if you took the preference, you took the cap with it.

Key Details

The four caps. FAR 52.219-14 (OCT 2022) sets the ceiling on what the prime may pay to firms that are not similarly situated:

  • Services (except construction): 50% of the amount paid by the Government for contract performance.
  • Supplies or products (other than procurement from a nonmanufacturer): 50%, excluding the cost of materials.
  • General construction: 85%, excluding the cost of materials.
  • Special trade construction: 75%, excluding the cost of materials.

The metric is money out, not work in. This is where most compliance spreadsheets go wrong. The rule does not measure labor hours. It does not measure the percentage of work you self-perform. It measures a percentage of "the amount paid by the Government for contract performance" that flows out the door to non-similarly-situated subcontractors. Everything else — your own labor, your ODCs, your similarly situated subs' self-performed work — sits on the safe side of the ledger.

What counts as similarly situated. FAR 52.219-14 defines a similarly situated entity narrowly. It is a first-tier subcontractor that (1) has the same small business program status as the prime, and (2) qualifies as small under the NAICS code assigned to the subcontract. Both conditions, not either. An 8(a) prime's similarly situated sub must itself be an 8(a) participant. And a second-tier sub never qualifies, whatever certifications it holds.

The flow-back trap. Excluding a similarly situated entity's dollars is conditional. 13 CFR 125.6 excludes those amounts only "to the extent the subcontractor performs the work with its own employees. Any work that the similarly situated subcontractor does not perform with its own employees shall be considered subcontracted." Your SSE's own subcontracting flows back onto your ledger, and you may not learn about it unless your subcontract required the sub to tell you.

The measurement window. 13 CFR 125.6 says the period used to determine compliance for a total or partial set-aside "will generally be the base term and then each subsequent option period." A subcontractor-heavy quarter can be offset by a self-performance-heavy quarter within the same option year. But an SBA final rule published April 27, 2023 (88 FR 26164) and effective May 30, 2023 changed that for multi-agency set-aside contracts where more than one agency can issue orders: the ordering agency must use the period of performance for each order to determine compliance, removing the averaging cushion. FAR 19.507(e) requires the contracting officer to indicate whether compliance applies at the contract or order level, so the answer is in your solicitation, not in a rule of thumb.

The consequences. 13 CFR 125.6 sets the penalty at "the greater of $500,000 or the dollar amount spent, in excess of permitted levels, by the entity on subcontractors." The 2023 rule added a past-performance consequence with teeth: where a contractor fails the limitation, the agency may not give a satisfactory or higher past performance rating unless extenuating circumstances apply and are approved at supervisory levels. A failed limitation is no longer a quiet contract-administration matter — it follows you into the next competition through CPARS.

What It Means for Contractors

Track the cap as a running dollar ledger, not as a post-award audit. Build a two-column subcontractor register the day you receive the award: dollars paid to similarly situated entities, dollars paid to everyone else. Reconcile it against invoiced revenue monthly. The number you divide by is what the Government pays you for contract performance, so the ledger has to move with your billings.

Read the clause before you bid, not after. Find FAR 52.219-14 in the solicitation and find the CO's contract-level-or-order-level designation. On an order-level multi-agency vehicle, price each order to stand on its own; a teaming structure that averages out across a base year will fail an order that leans hard on subcontractors.

Verify similarly situated status in writing, per subcontract, under the NAICS assigned to that subcontract. A sub that is small under your prime NAICS may be large under the subcontract's. Confirm program status matches yours — same program, not just "also small."

Flow down a reporting obligation to every similarly situated sub. You need to know what they subcontract out, because their pass-through becomes your exposure. Require monthly reporting of their non-similarly-situated spend, and require it in the subcontract, not in an email.

For supplies and construction, get the materials exclusion right and document it. Materials come out before the percentage is calculated on supplies, general construction, and special trade construction — but not on services. The exclusion is worth real money on a construction award, and it is worth nothing if you cannot show the auditor how you classified each cost.

Finally, treat a projected failure as a restructuring problem, not a rounding problem. The relief the regulation offers arrives only after the fact: at the conclusion of performance the agency must let you explain extenuating or mitigating circumstances, and a satisfactory rating may still be given if the contracting officer so determines and someone at least one level above concurs. That is a path to a rating, not a cure for the breach or the penalty. If the ledger says you are going to miss, reallocate the work while you still have performance left.

Sources