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By Travis Yule — CEO & Founder, Full Send Funding
Retainage is not a 5–10% haircut on a job. At ordinary construction margins it is a multiple of the entire profit, held for a year — and it scales with growth.
Retainage is money you have already earned that somebody else is holding. On most construction contracts it is 5% to 10% of every payment application, withheld from the first draw to the last, and released somewhere between three months and two years after you finish. It is not a fee, a penalty, or a reserve against a problem. It is your money, sitting in an account that is not yours.
The reason it deserves an article of its own is that almost everyone measures it against the wrong number. Retainage is quoted as a percentage of the contract, so a 10% hold on a $1 million job sounds like a tenth of something. Measured against the number that actually matters — the profit on that job — it is usually several times larger than everything the job will ever make you. That is why a contractor can win good work, build it correctly, invoice it accurately, be owed every dollar of it, and still not be able to run payroll on Friday.
Every month you submit a payment application for the work put in place. The owner, or the general contractor above you, approves it and pays it — minus a retention percentage written into the contract. That percentage accumulates in their hands across the life of the job.
Three things follow from that mechanic, and each one is worth stating on its own.
The money is earned, approved, and unpaid. Retainage is not a disputed amount. It sits on the far side of an approved payment application. Your accountant books it as a receivable, your surety counts it as an asset, and your bank will not lend against it at anything close to face value.
It is withheld from the beginning and released at the end. You finance the retainage on month one of a thirty-month job for the entire thirty months, plus however long closeout takes. The cost of carrying it is real even though no one invoices you for it.
Release is conditional on things outside your control. Final payment usually waits on substantial completion, a signed-off punch list, as-builts, warranties, operation and maintenance manuals, lien waivers from every tier below you, and — on public work — a formal acceptance. A single unresolved item on somebody else's scope can hold your retainage past the end of your fiscal year.
This is the calculation to run, and it is the one most contractors have never actually done.
Take a $1 million job. At 10% retainage the owner holds $100,000. Now put that against what the job earns. Net margins in construction are thin — a general contractor working in the low single digits is normal, and specialty trades vary widely but rarely see the double-digit net margins that people outside the industry assume.
Retainage divided by net profit on a $1,000,000 job. The margin range spans what is commonly seen across general contractors and specialty trades.
Read the last column. At a 3% net margin, the retainage held on a single job is more than three times the entire profit that job will produce. You do not get to keep the profit until the retainage comes back, because until it comes back the profit exists only on paper.
This reframes the whole conversation. A contractor who says "retainage is 10%, I can absorb that" is thinking of it as a haircut on revenue. It is not. It is the profit on this job, plus the profit on two more like it, sitting in somebody else's bank account.
A single job's retainage is a one-time hold. A company's retainage is not. If you are continuously starting and finishing work, there is always a layer of retainage outstanding — released from the jobs that closed, replaced by the jobs that opened. At steady state, the amount outstanding is a permanent position on your balance sheet, and its size is a simple product:
Retainage permanently outstanding = annual revenue × retention rate × average release lag (in years)
Steady state, assuming work is started and completed continuously. This is a permanent balance-sheet position, not a one-time hold — which is why it grows in exact proportion to revenue.
Sit with the bottom rows. A $10 million contractor on 10% retainage with a twelve-month release lag has a million dollars permanently locked up. Not once — permanently. And because the formula is multiplicative, growing revenue grows the locked-up amount in exact proportion. Doubling revenue doubles the hole.
This is the mechanism behind something the industry says constantly without explaining: contractors go broke growing. Every additional job requires payroll, materials and equipment up front, and hands back 10% of its value to a holding account for a year. Growth consumes cash even when every job is profitable, and retainage is one of the largest single reasons why.
Abstractions do not make payroll, so here is the whole thing with numbers.
A mechanical subcontractor bills $6 million a year. Net margin is 4%, so the business earns $240,000 before the owner's compensation. Work is subcontracted to them by general contractors; retainage is 10%, and release runs about eleven months after they finish a job — roughly two months of closeout after substantial completion, then nine more while the general contractor's own retainage works its way back from the owner.
The steady-state hole. $6,000,000 × 10% × (11 ÷ 12) = $550,000 permanently outstanding.
That number is larger than two full years of the company's net profit. It is not a bad year, a dispute, or a mistake. It is what the contract terms produce when the business runs exactly as designed.
What it costs to carry. The company covers it the usual way — supplier terms stretched from 30 days to 60, the owner's distributions deferred, and a bank line drawn most of the year. Say $250,000 of it sits on a line at 11%: $27,500 a year, or roughly 11% of the company's entire net profit, spent on borrowing money it has already earned.
Then it wins a bigger year. Revenue goes to $9 million. The steady-state retainage hole goes to $825,000 — an additional $275,000 of cash required, on top of the extra payroll and material float that $3 million of new work needs before anybody pays for it. The company is more profitable and less solvent than it was twelve months earlier.
And the bonding line does not help. The surety looks at working capital, sees the retainage receivable discounted, and sizes capacity off a smaller number than the balance sheet shows. The company's ability to bid the work that would justify the growth is capped by the same dollars that are already missing.
Nothing in that sequence involves a bad decision. Every job was profitable, every invoice was correct, and every payment was eventually made. The company is squeezed entirely by the timing written into its contracts — which is exactly why the fix is contractual and financial rather than operational.
If you are a general contractor or a subcontractor with tiers below you, retainage is not only withheld from you — you withhold it from others. Your true exposure is the net position.
That net can be far better or far worse than the headline number:
If you have never calculated it, the number to find is retainage receivable minus retainage payable, on the balance sheet, today. That is your actual position.
Retainage is governed by a patchwork: federal rules on federal projects, a state statute on that state's public work, and — in many but not all states — a separate statute capping or regulating retainage on private construction. The rules differ enough that a contractor working in three states is working under three regimes.
What follows describes how these frameworks generally work. It is not legal advice, and the details of your contract and your state control. Ask a construction attorney about a specific project.
Most states cap retainage on public projects by statute, commonly at 5%, and many require a reduction or release at a defined milestone — often 50% completion — provided the work is progressing satisfactorily. A number of states also require the withheld money to be held in an interest-bearing account or escrow, with the interest belonging to the contractor rather than the owner.
On federal projects, the Federal Acquisition Regulation does not treat retainage as automatic. Under FAR 52.232-5, retainage on fixed-price construction is discretionary: the contracting officer may withhold up to 10% if progress is unsatisfactory, and is directed to release it once performance is adequate. In practice, a well-performing federal contractor may see no retainage at all — which is a genuine advantage of federal work that rarely gets counted when contractors compare public and private opportunities.
Private construction is where the variation is widest. Some states cap private retainage by statute; others leave it entirely to the contract. Where there is no cap, 10% for the life of the job is common and entirely enforceable.
Separately from retainage caps, most states have prompt payment acts setting deadlines for paying approved amounts and imposing interest on late payment. These often reach retainage release as well. The federal Prompt Payment Act (31 U.S.C. §3901 and following) does the same on federal work and requires primes to flow payment down to subcontractors within seven days of receipt.
The practical point: there is frequently a statutory deadline and a statutory interest rate attached to your retainage, and most contractors never invoke either. Knowing the deadline in the state you are working in changes the conversation from a request to a citation.
Ranked roughly by how much control you have over them.
This is the second-order effect, and it costs more than the first.
Sureties underwrite bonding capacity primarily on working capital and net worth. The rules of thumb vary by surety and by contractor, but capacity is commonly sized as a multiple of working capital — meaning every dollar not in working capital is roughly ten or twenty dollars of bonding capacity you do not have.
Retainage receivable is on your balance sheet, but sureties routinely discount or exclude the portion that is not currently collectible — long-dated retainage on jobs nowhere near complete. So the same dollars are simultaneously:
That is the real compounding. Retainage does not merely delay cash; it caps the size of the work you are allowed to chase. A contractor who solves the retainage carry frequently finds that the bonding line moves before the bank account does. How that calculation actually works — and why the term of a facility matters more to it than the rate — is covered in why your bonding capacity is a balance sheet question.
And this cuts the other way on financing. How you fund the gap changes your balance sheet, and your balance sheet sets your bonding capacity. A structure that adds current liabilities reduces working capital dollar for dollar and can cost you more in bonding capacity than it delivers in cash. This is the single most important thing to understand before financing retainage, and it is covered in the next section.
Construction is underwritten differently from a restaurant or a retail shop, and it is worth knowing what the person on the other side of the file is reading. Speaking for how we look at it:
What we do not require: collateral (equipment financing is the exception, where the equipment secures the deal), a strong personal credit score, or years of history. The minimums are three or more months in business and $10,000 a month in revenue, applying uses a soft credit pull only, and a decision comes back within 24 business hours.
Retainage is a genuine financing need. It is earned money with a known release path and, usually, a statutory backstop. Financing it is not papering over a problem; it is bridging a timing mismatch created by the contract you signed.
The ways it goes wrong are worth naming plainly.
Wrong one: financing the gap with the next job's mobilization money. Using the deposit or first draw on Job B to cover the retainage hole from Job A is the most common approach in the industry and the most dangerous. It works until one job slips, and then it fails on both jobs simultaneously. If you have ever wondered how a contractor with a full backlog fails abruptly, this is usually the mechanism.
Wrong two: short-term capital on a long-term hold. Retainage on a thirty-month job is a thirty-month problem. Financing it with a four-month instrument means refinancing it seven times, paying an origination cost each time. Matching the term of the money to the term of the hold is the whole discipline. If the release is genuinely twelve months out, a four-month product is the wrong shape regardless of its rate.
Wrong three: stacking. Layering a second and third position on top of the first, each with its own daily or weekly debit, is how a cash-flow problem becomes an insolvency. We wrote about the mechanics of that separately in the stacking trap, and it applies to construction with particular force because a contractor's receipts are lumpy — big draws, weeks apart — while the debits are relentless and daily.
What a sensible structure looks like: term matched to the expected release, payments the job's own progress billings can cover in the intervening months, and no lien on the receivables you will need to pledge elsewhere. At Full Send Funding we fund construction working capital between $5,000 and $10 million on terms from four months to three years, we underwrite on revenue and bank activity rather than a credit score, we file no UCC-1 lien against the business, and our agreements contain no confession of judgment. The absence of a blanket lien matters more in construction than in almost any other industry, because a blanket UCC filing sits directly across the receivables your surety and your bank both expect to look at — what a UCC-1 actually does is worth understanding before signing anything that includes one.
When financing is the wrong answer. If retainage is late because the work has a defect, or because you have not delivered closeout documents, borrowing against it postpones a problem that will not resolve itself. Fix the underlying reason first. Money borrowed against a receivable that is not actually going to be released on schedule is the worst kind of money.
Retainage terms are far more negotiable than most contractors treat them, and every one of these is easier to win at bid time than at closeout.
Retainage is earned money held for a long time, and it is far larger relative to your profit than the percentage suggests. At a 3% net margin, 10% retainage on a job is more than three times what the job earns. Because it is continuously withheld and continuously released, it becomes a permanent balance-sheet position equal to your annual revenue times the retention rate times the release lag — a position that grows exactly as fast as you do. It reduces working capital, and reduced working capital reduces bonding capacity, so the same dollars cost you twice.
The levers, in order: close out early and completely, ask for the statutory reduction, negotiate line-item release and bond substitution at bid time, know your state's prompt payment deadline, and if you finance the gap, match the term of the money to the term of the hold.
If you want to talk through a specific situation — a retainage balance that is late, a job that will not close out, or a growth year that has outrun your cash — call 518-312-0382 or check what you would qualify for. It takes about a minute and uses a soft credit pull only.
Retainage is a percentage of each approved payment that the owner or general contractor withholds until the job is complete, commonly 5% to 10%. It is not a fee or a penalty — it is your earned money, held as security for your performance, and released at or after substantial completion once closeout requirements are met.
It depends on the state and on whether the project is public or private, and the framing differs more than most contractors expect. Many states cap retainage on public work by statute, commonly at 5%. Some states cap private retainage; others leave it entirely to the contract, where 10% for the life of the job is common and enforceable. A few states run the opposite way and require an owner to withhold a statutory minimum to protect subcontractors. Check the rule in the state you are working in — this is information, not legal advice.
Typically at or after substantial completion, once the punch list is signed off and closeout documents — as-builts, warranties, operation and maintenance manuals, and lien waivers from every tier below you — are delivered and accepted. Many states set a statutory deadline and attach interest to late release. Most contractors never invoke either, and knowing the deadline in your state changes the conversation from a request into a citation.
Frequently, and it is far easier at bid time than at closeout. The asks that work: a lower percentage; a reduction milestone, such as dropping from 10% to 5% at 50% completion, defined objectively and in writing; line-item release on scopes that are complete and accepted; the right to substitute a retainage bond for cash at your option; interest on amounts held; and a release deadline stated as a number of days after substantial completion rather than "upon final acceptance", which is a date the other party controls.
Yes, and it is a legitimate use of capital rather than papering over a problem — retainage is earned money with a known release path. Two disciplines matter. Match the term of the money to the term of the hold: retainage on a thirty-month job is a thirty-month problem, and financing it with a four-month instrument means refinancing it repeatedly. And be careful about liens, because a blanket UCC filing sits directly across the receivables your surety and your bank both expect to look at.
Yes, and this is the cost most contractors miss. Sureties size capacity primarily off working capital, and they routinely discount retainage receivable on jobs nowhere near completion because it is not near-term cash. So the same dollars are unavailable to pay your people and counted at less than face value toward the capital that sets your bonding line — which caps the size of work you can even bid for.
A surety bond substituted for the cash the owner would otherwise hold. The owner keeps its security, and you keep your money. Availability depends on the jurisdiction and the contract, and the premium is a real cost — but it should be compared against the cost of financing the same amount for the same period, not against zero.
Nothing substantive. "Retainage" is the more common term in United States construction contracts and "retention" in the United Kingdom and in some international forms. Some American contracts use them interchangeably. What matters is the percentage, what it is withheld from, and the conditions for its release.
Travis Yule founded Full Send Funding in 2021 and leads it from Middle Grove, New York. He writes about working capital from the underwriting side of the table — what the numbers actually have to say before a business gets funded.