What the federal contracting courses on YouTube won't tell you. The CO perspective on why subcontracting under a prime is sold as easy money and what actually happens when it goes wrong.
Last updated April 2026. Written from the contracting officer's side.
The pitch goes: register in SAM, get certified as a small business, win a set-aside as the prime, then subcontract all the actual work to a large company that does it for you. You take a margin off the top for being the small business pass-through. Clean. Fast. Doesn't require you to actually do the work. It also happens to be exactly what the federal small business rules were written to prevent.
This page is the rule book, written from the contracting officer's side: the Non-Manufacturer Rule, Limitations on Subcontracting, the Excusable Delays clause, past performance attribution, joint ventures, teaming agreements, and what your CO will actually do to you when your sub doesn't deliver.
The standard pitch from federal contracting courses follows this script:
The reason the pitch sells is that the people selling it actually do make money in federal work, just not the way they describe in the marketing. The trainer who runs a successful janitorial business has earned their knowledge. They specialize in one trade. They know the FAR provisions for their lane. They know the typical prime relationships, the specific NAICS codes, and the kind of work where the math actually works. What they teach in the course is not the same thing they actually do for a living.
The pass-through scheme they pitch to new contractors is what the federal small business rules were specifically written to stop. Three SBA regulations work together to catch it. The penalties for getting caught are severe: contract termination, False Claims Act liability, debarment, and in extreme cases criminal prosecution. The rules:
And then there's everything else that goes wrong even when the scheme is technically legal:
The strategy can work. I'm not saying every small business that subcontracts is doing something wrong, and I'm not saying it's impossible to make money in federal work without being the world's leading expert in your trade. It can be done. There are contractors out there running this model legally and successfully.
What the YouTube classes do not prepare you for is what happens when things go south. And things go south. The sub fires the wrong people. The product is non-conforming. The prime tries to cancel your subcontract three months in. A government CO issues a cure notice on your contract because your sub stopped showing up. Now what?
Taking a $2,000 federal contracting course does not make you a lawyer. Do you actually know your contractual remedies for non-conformance? Do you know your rights against your subcontractor when they breach? Do you know how to write a cure notice to your own sub, or how to terminate a subcontract for default without exposing yourself to a wrongful-termination counterclaim? Do you know when the Severin doctrine applies to your sub's claim against you (the rule that a prime can pursue a subcontractor's claim against the government only if the prime is itself liable to the sub), or when a pass-through clause shields the prime?
If the answer to any of those is "no," you do not have the legal infrastructure this business model requires. Not having it does not make you wrong for trying. It just means you need a real attorney on retainer before things go south, not after.
None of this is a reason to avoid federal contracting. It's a reason to know the rules before you sign anything, and to build a real business instead of renting your status to someone else.
The Non-Manufacturer Rule (NMR) is an SBA regulation that controls who can win a small business set-aside for supplies when the small business prime didn't actually manufacture the product. The rule lives at 13 CFR 121.406.
To qualify as a small business non-manufacturer for a set-aside supply contract, you must:
If the manufacturer of the product is large or non-US, you can't claim the contract under the small business set-aside unless SBA has issued a class waiver for that product class or you have an individual waiver.
The NMR does not apply to services, construction, or research and development contracts. If you're bidding on services, this rule isn't your problem. If you're bidding on supplies under a set-aside, this rule is the difference between a clean award and a False Claims Act case.
If you win a small business set-aside as the prime, the Limitations on Subcontracting (LOS) rule controls how much of the work you can hand off to subcontractors. The clause is FAR 52.219-14; the regulation is 13 CFR 125.6.
| Contract Type | What the prime must perform | Max non-similarly-situated subs |
|---|---|---|
| Services (except construction) | At least 50% of the contract amount | Up to 50% |
| Supplies (other than from non-manufacturer) | At least 50% of the cost of manufacturing (excluding materials) | Up to 50% |
| General construction | At least 15% of the cost (excluding materials) | Up to 85% |
| Special trade construction | At least 25% of the cost (excluding materials) | Up to 75% |
Performance is measured by the amount paid to firms outside the prime. If you're a small business prime on a $1M services set-aside and you pay $600K to subs, you've paid 60% out and only performed 40%. That's an LOS violation.
Work performed by a similarly situated subcontractor (a sub in the same socio-economic category as the prime, like both small business, both 8(a), or both HUBZone) counts toward the prime's percentage. So an 8(a) prime can subcontract to another 8(a) firm and that work doesn't count against the LOS.
LOS sets the percentage limits. The Ostensible Subcontractor Rule at 13 CFR 121.103(h)(3) is what SBA uses to catch you when you tried to game the percentages. It says: if a small business prime is "unusually reliant" on a single subcontractor, OR if the sub is performing the "primary and vital requirements" of the contract, SBA can treat the prime and sub as a joint venture for size determination. The sub's size gets added to the prime's, and the prime usually loses its small business status as a result.
This is the rule that catches the pass-through scheme even when the LOS percentages technically check out on paper. If you're a small business "prime" and one large sub is providing all the technical capability, the project manager, the equipment, and the personnel, SBA can find ostensible subcontractor status. You lose the contract. You may lose small business eligibility for future awards.
The factors GAO and SBA examine in size protests:
If a competitor sees you bid as the prime when the industry knows your "subcontractor" is the firm with the actual capability, expect a size protest filed at SBA the day after award. SBA decisions on ostensible subcontractor protests are public and add up to a long line of decisions cancelling awards.
LOS violations and size status fraud are not a slap on the wrist. They can trigger:
SBA can audit and re-audit. Competitors can protest size and ostensible subcontractor status after award. If you can't actually perform the percentage required by your contract type, you're not eligible to bid that contract as a prime. Either build the in-house capacity, or no-bid.
The single most misused clause in federal contracting is FAR 52.249-8, the Default clause for Fixed-Price Supply and Service contracts. The relevant Excusable Delays paragraph reads:
That language is the fixed-price supply/service version. Two other places carry the same idea with the same list of excuses:
Same list of excuses, same standard, different home depending on the contract type. If you are reading your contract and looking for the excusable-delays language, it is in one of these three places.
Read that list again. Slowly. Acts of God. Acts of the public enemy. Acts of the Government. Fires. Floods. Epidemics. Quarantine restrictions. Strikes. Unusually severe weather. Delays of common carriers.
Now look at what is not on that list: "My subcontractor was late."
The risk of subcontractor failure sits on the prime. Period. There's a narrow exception in the related sub-paragraph for cases where the subcontractor's own delay was itself caused by an excusable event AND the items could not be obtained from other sources in time. That exception almost never applies in practice and it has to be proven, not asserted.
I am sympathetic when there are real problems. I get it. Things break. People get sick. Hurricanes happen. But you need to treat your contract like a #1 priority when something goes wrong. Daily updates. Concrete remedies. Tell me what you've done to speed it up. Tell me what consideration you're offering the government for the delay. Show me the recovery plan with dates.
What does not work is showing up six weeks late saying "my sub flaked." You entered into this contract. You picked the subcontractor. You provided the pricing. You made promises you cannot keep, and now it's the government's problem? That does not fly.
If I catch wind that you're treating the acquisition as a cash grab and shifting all responsibility to the sub, I will shift the blame back to where it belongs. Not because I'm trying to hurt you. Because I have a responsibility to the taxpayer, the government, the personnel I support, and yes, even to you. Some COs will absorb your delays without consequence. Most won't. Building your business model around finding the merciful one is not a plan.
This is the part of the subcontracting strategy that almost no YouTube course mentions, because it kills the dream.
When work is performed under a federal contract, the formal performance evaluation goes to the prime contractor. The prime gets the CPARS rating. The prime gets the federal past performance reference that they can use to win the next contract. As a subcontractor, you can submit references describing your role on the prime's contract, but those references are weaker, often discounted, and frequently challenged in source selection.
Three years of subbing under primes can leave you with no federal past performance record of your own.
That creates a catch-22:
The way real growth works is the opposite of the YouTube pitch. You start small as a prime on micro-purchases or sub-SAT contracts where past performance requirements are minimal. You execute well, get a CPARS rating, and use that rating to compete for larger awards. Subcontracting can supplement that journey but it should not replace it.
A joint venture (JV) is a separate legal entity formed by two or more companies to pursue a specific contract or set of contracts together. JVs come up constantly in federal contracting, especially for small businesses trying to scale, and they're frequently misunderstood.
The default SBA rule is that JV partners are treated as affiliated for size determination purposes. That means if a small business JVs with a large business, the JV is treated as the combined size of both partners, which usually disqualifies it from small business set-asides.
There are exceptions. The big one is the SBA All-Small Mentor-Protégé Program (ASMPP). Under that program, an approved mentor and protégé can form a JV, and the JV is treated as small for size purposes even if the mentor is large, as long as the protégé qualifies as small. That's the legitimate scaling path the YouTube courses confuse with informal teaming.
There's also an 8(a) JV mechanism for 8(a) firms, with similar rules. And the All-Small JV is allowed for any small business pair, with the same affiliation protection.
SBA expects the small partner in a JV to do meaningful work, not just lend its name to the deal. There are required workshare percentages, project manager requirements, and equity rules. A JV where the small partner does 5% of the work and gets 95% of the small-business credit is a fraud case waiting to happen.
Even with proper mentor-protégé approval, doing too much business with one partner over time can lead SBA to determine you're effectively dependent and therefore affiliated. Diversification matters. If 90% of your revenue comes from one mentor relationship, you have an affiliation problem.
Some primes form JVs with small businesses just to bid on a single set-aside, win, then walk the small business off the project. Sometimes through unilateral termination, sometimes through engineered disputes. If your JV agreement doesn't have teeth on workshare, key personnel, payment terms, and dispute resolution, you're inviting this.
These two get confused constantly. They're not the same thing and the difference can cost you a contract you helped win.
A teaming agreement is signed before a bid. It establishes how two or more companies will pursue an opportunity together: who will lead the proposal, who will perform what scope, what the workshare will look like, and (critically) what subcontract terms apply if the bid wins. Teaming agreements are not subcontracts. They are agreements to enter into a subcontract under specified terms if the prime wins.
A subcontract is the actual binding agreement signed after award that delivers work and money.
Predatory primes use teaming agreements as a way to get free capture intelligence from small businesses. The pattern:
If a prime balks at signing a teaming agreement with these terms, they're telling you something. Believe them.
If you take nothing else from this page, take this. Here's what runs through a contracting officer's head when a prime contractor calls or emails to say their subcontractor is the reason performance is late, deficient, or unfinished:
"You picked them. You priced the work assuming they could deliver. You signed the contract telling me you would deliver. The Excusable Delays clause does not list 'my sub flaked' as an excuse. You're not telling me anything that changes my obligations as a CO. You're telling me you mismanaged your supply chain."
"Now I have to figure out: do I terminate for default, do I cure-notice you, do I accept a deduction in price for the late or deficient work, or do I quietly let it slide and hope nobody notices? The answer depends entirely on how you handle the next two weeks, not on whose fault it was."
"If you treat this like a #1 priority, with daily updates, a real recovery plan, real consideration to the government, and accountability for your decisions, we'll work through it. If you keep blaming the sub and asking for relief, I'll start the cure notice paperwork."
The CO has tools. Cure notices. Show-cause letters. Termination for default. Negative CPARS. None of these are punitive for fun. They exist because contracts have to mean something. If you signed a contract you can't perform, the consequences are written into the contract you signed.
None of this is meant to scare you out of federal work. It's meant to make sure you go in eyes-open. The contractors who succeed long-term in federal work are the ones who treat their commitments seriously. The ones who flame out are the ones who treated it like a cash grab.
The single best piece of advice anyone can give a new federal contractor is also the most boring: specialize in something specific.
The successful YouTube creators who teach federal contracting almost all have one thing in common that doesn't make it into the marketing material: they specialize in a craft. Janitorial. IT support. Specific construction trades. Specific commodities. They know the FAR provisions that apply to their lane. They know which agencies buy their stuff. They know the typical pricing. They know the typical performance issues and remedies. They've built relationships with COs and CORs who buy their kind of work.
That depth is the asset. Not the small business certification. Not the SAM registration. Not the willingness to chase any opportunity that has a small-business component.
The other thing nobody talks about: hire professionals instead of subcontracting the work.
When you subcontract a piece of work, you're paying another company that has to mark up labor, add their own overhead, and take their own profit. That margin comes out of your contract. The contract pays you (your overhead and profit) on top of paying the sub (their labor, their overhead, their profit). The taxpayer pays for two layers of overhead and two layers of profit instead of one. Your margin gets squeezed. Your competitiveness on the next bid drops.
When you hire an employee or contractor directly to perform that same work, the math collapses. You pay actual labor cost. You add your overhead and profit once. You capture the margin the sub would have taken. You also build internal capability that grows your past performance, your bench, and your ability to bid bigger work on your own next time.
Hiring is not free. You take on payroll taxes, benefits, HR overhead, recruiting time, and the risk of carrying staff between contracts. That math is real and it doesn't always favor hiring. But for steady, recurring service work in your specialty, building an internal team is almost always more profitable than perpetual subcontracting. Most successful small federal contractors get there eventually. The ones who never do are the ones who treat their company as a brokerage instead of a business.
Stop looking for the contract that matches your eligibility. Start looking for the work you're genuinely good at and figure out which contracts call for it. The first approach makes you look small-business-status-shaped to the entire federal market. The second approach makes you look like an expert in your niche. Only one of those builds a sustainable business.
If you do pursue subcontracting, watch for these patterns. They show up over and over in the prime relationships that go wrong:
Reps and certs from a CO's perspective, the SAM renewal scam (don't get scammed), how to register in SAM, and how to invoice through WAWF without getting your invoices bounced. All free, all from the contracting officer's side of the table.
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