The 50% Work-Share Calculation Under FAR 52.219-14 for SDVOSB Primes

When a small business wins a set-aside, FAR 52.219-14 caps how much of the work it can hand to subcontractors. For a services contract, the prime and its similarly situated subcontractors together must self-perform enough that no more than 50% of the amount the government pays flows to firms that are not similarly situated. The number sounds simple. The calculation is where SDVOSB primes lose contracts.

What FAR 52.219-14 actually requires

The clause implements 13 CFR 125.6, the SBA rule that sets the limitations on subcontracting for every set-aside program, including SDVOSB. The limit is not stated as "the prime must self-perform 50%." It is stated as a ceiling on the dollars that leave the small business ecosystem: the concern "will not pay more than 50% of the amount paid by the government to it to subcontractors that are not similarly situated."

The ceiling varies by contract type. Get the contract type wrong and the whole calculation is wrong.

Most SDVOSB IT work under NAICS 541512, 541513, and 541519 falls in the services row, so the operative number is 50% and materials come out before the math starts. The policy basis sits in FAR 19.505, which tells contracting officers how to apply the limitation across set-aside types.

The rule changed in 2016, and old habits still cause findings

Before 2016, the limitation measured the prime's own labor: for services, the small business had to incur at least 50% of the "cost of contract performance incurred for personnel" with its own employees. Many capture teams still run that version in their heads. It is wrong.

The current 13 CFR 125.6 test does not ask what the prime self-performed. It asks how much the prime paid to subcontractors that are not similarly situated. Two consequences follow. First, a prime can subcontract heavily and still comply, as long as most of that subcontracting goes to similarly situated entities. Second, dollars paid to a large business or an out-of-program small business are the only dollars that count against the ceiling. If your compliance model tracks "self-performed labor hours," you are measuring the wrong quantity and may either over-restrict your team or, worse, believe you are compliant when you are not.

For the full clause-by-clause treatment, see the pillar guide on FAR 52.219-14 limitations on subcontracting.

Similarly situated entities: the provision that rescues team structures

A similarly situated entity is defined in 13 CFR 125.1 as a subcontractor that (1) holds the same SBA program status as the prime, and (2) is small for the NAICS code the prime assigned to the subcontract. For an SDVOSB prime, a similarly situated subcontractor is an SBA-verified SDVOSB that is also small under the assigned size standard from the SBA table of size standards.

Why it matters for the calculation: amounts paid to a similarly situated entity do not count toward the 50% that cannot be subcontracted. Work a similarly situated sub further subcontracts to a non-similarly-situated firm, however, does count. This is the mechanism that lets an SDVOSB prime build real capacity through teaming without breaching the clause. It is also why the program status of every team member must be verified at award and monitored during performance. A subcontractor that loses its SDVOSB verification mid-performance stops being similarly situated, and its dollars start counting against your ceiling from that point.

The teaming decisions that flow from this rule are covered in the SDVOSB teaming guide.

How to run the calculation

Work in dollars, not hours or percentages of scope. The formula for a services contract is:

Amount paid to non-similarly-situated subcontractors
--------------------------------------------------------  must be <= 50%
(Total amount paid by the government to the prime)
   minus (cost of materials)

Worked example. An SDVOSB prime wins a $2,000,000 services task order under NAICS 541519.

• Cost of materials (COTS licenses passed through at cost): $200,000
• Adjusted contract value for the test: $2,000,000 − $200,000 = $1,800,000
• Ceiling on non-similarly-situated subcontracting: 50% × $1,800,000 = $900,000

Now allocate the subcontracting:

• Paid to a verified SDVOSB subcontractor (similarly situated): $600,000 — excluded from the ceiling
• Paid to a large-business subcontractor (not similarly situated): $700,000 — counts

The test compares $700,000 against the $900,000 ceiling. The prime is compliant, with $200,000 of headroom, even though it directly self-performed only $500,000 of labor. Run the pre-2016 self-performance model on the same facts and you would have wrongly concluded the prime was $400,000 short.

What counts and what is excluded

• Materials are excluded for services and supplies. Define "materials" narrowly and document it; equipment leased for the contract and pass-through licenses are common gray areas.
• Similarly situated payments are excluded from the ceiling, but only while the subcontractor holds the qualifying status.
• Independent contractors paid by the prime are generally treated as the prime's own performance, not as subcontracting, provided they meet the IRS common-law test. Do not assume; document the classification.
• Tiered subcontracts flow through. If your similarly situated sub subcontracts to a non-similarly-situated firm, those dollars count against your ceiling.

When compliance is measured

Timing is a frequent trap. Under 13 CFR 125.6, for a total set-aside the limitation applies to the base period and to each option period separately. You cannot average a compliant base year against a non-compliant option year. For multiple-award contracts and IDIQ vehicles, the contracting officer may apply the limitation to each order rather than the contract as a whole, so a single non-compliant order can create exposure even if the aggregate looks fine.

Track the calculation continuously. Build the ratio into monthly financials so a mid-year subcontractor status change or a materials reclassification surfaces while you can still correct the allocation, not at closeout when it is a finding.

Penalties for getting it wrong

The consequences are not administrative. Under 13 CFR 125.6(e), a concern that violates the limitation is subject to the penalties in 15 U.S.C. 645(d): a fine of the greater of $500,000 or the dollar amount the concern spent in excess of the permitted level. Layered on top are potential False Claims Act liability if compliance was certified falsely, termination for default, negative CPARS past performance, and suspension or debarment. For a small SDVOSB, any one of these is an existential event. This is why the work-share math belongs in the capture decision, not the closeout audit.

Practical compliance checklist for SDVOSB primes

• [ ] Confirm the correct contract type and ceiling (50% for services and supplies)
• [ ] Remove material costs before computing the denominator
• [ ] Verify each subcontractor's SDVOSB status in SBA's system at award and re-verify each option period
• [ ] Track dollars paid to non-similarly-situated subs against the ceiling monthly
• [ ] Document independent-contractor classifications
• [ ] Measure compliance per period and per order, not on a blended average
• [ ] Retain the calculation and supporting invoices for the contracting officer on request

FAR 52.219-14 rewards primes that build genuine small-business capacity and punishes those that use a set-aside as a pass-through. For an SDVOSB competing on NAICS 541512 and 541519 task orders, a defensible, continuously updated work-share calculation is both a compliance control and a differentiator a contracting officer can rely on.