How Invoice Factoring Works on Government Contracts
What actually happens when a government invoice is factored: the assignment, the advance, the reserve, and why routing is fixed while the choice of which invoices to fund is yours.
Invoice factoring turns an approved government invoice into cash now rather than at the end of net 30 or net 45 terms. The idea is simple. The mechanics on a government contract are less so, because the government does not pay whoever it likes: payment has to be formally redirected, and that redirection has rules that shape everything else about how a facility behaves.
This is how it works, step by step. If you already know the mechanics and want to talk about a facility, our invoice factoring page covers who it fits and what happens after you call.
How does invoice factoring work on a government contract?
Once work is performed and invoiced, the money is no longer in question. Only the timing is. Factoring advances against that invoice now and settles when the agency pays. Because the agency is the payer, the credit question starts with the government rather than your financial history, which is why factoring is available to contractors whose growth has outpaced it.
The sequence on a government receivable runs like this:
- The contract is assigned. Payment under the contract is formally directed to the financing party. On federal work this is an assignment of claims, and it has to be acknowledged by the agency before it takes effect. This happens once per contract, at the start.
- You perform and invoice the agency exactly as you would otherwise. Nothing about the work or the invoice changes.
- You choose whether to advance against that invoice. If you do, most of its value is released to you up front.
- The agency pays the invoice on its normal schedule, to the assignee rather than to you.
- The balance settles. On an advanced invoice, the held-back portion is released to you less the fee. On an invoice you did not advance against, the whole payment passes through to you.
Steps one and three are the two that confuse people, because they look like the same decision and are not.
Can you factor only some invoices on a government contract?
Yes, and the reason it is a common question is that two separate questions sit inside it, with different answers.
Where the money goes is fixed. An assignment of claims directs all amounts due under a contract to a single assignee. Every invoice on an assigned contract pays to the same place, and that part is not structurable. Any lender who tells you otherwise is describing something the statute does not allow. The same rule means one contract cannot be split between two lenders. You can assign one contract and leave another alone, which is where the choice sits at the contract level.
Which invoices you advance against is your decision. An invoice you take no advance on is charged no fee. When the agency pays it, the money passes through to you. So a facility can sit across the whole contract while you only pay for the cycles you actually draw on.
That is why many contractors use factoring heavily in the first months of an award and barely at all by the second year. Retained profit starts covering the cycle, the advances stop, and the assignment simply keeps routing payment through to them.
How do the advance and the reserve work?
When you advance against an invoice, the share released to you up front is the advance rate, which commonly runs 85 to 90 percent on approved government receivables. The remainder is a reserve, not a charge. It is released to you when the agency pays, less the fee.
Reading the reserve as the cost is the single most common misunderstanding about factoring, and it makes the product look several times more expensive than it is. The cost is the fee, and the fee runs on how long the invoice is outstanding. The faster the agency pays, the less an advance costs. There is no monthly payment, because settlement happens when the agency pays rather than on a schedule.
That pricing structure is also the honest limit of factoring. It is efficient when you are financing a defined receivable for a defined period, and less efficient than a revolving facility when you need capital before you can invoice at all.
How does assignment of claims work?
On federal contracts the mechanism is FAR 52.232-23, which lets you assign payment under the contract to a financing institution so the agency pays them directly. The Assignment of Claims Act is the statute behind it. State, local and municipal contracts do the same thing under their own procurement codes, and the rules vary by jurisdiction.
It is not automatic. Written notice goes to the contracting officer, the disbursing officer, and the surety on bonded work, and payment only redirects once it is acknowledged. The agency sets the pace, which is why a facility starts the paperwork at the beginning rather than the end.
The full mechanics, including the no-setoff clause and where contractors get tripped up, are in our guide to assignment of claims.
Why government invoices suit factoring
Most factoring risk is about whether the customer pays. On a government receivable that risk is minimal, because the payer is an agency with an appropriation behind the contract. The delay is procedural: prime contracts are typically net 30, and subcontracts net 45.
What can still go wrong is mostly paperwork. Government invoices are returned for formatting and documentation problems more often than contractors expect, and a returned invoice restarts the payment clock. A facility that monitors payment behavior treats a slowing payer as information, which is the kind of credit work most contractors have no way to do themselves.
Factoring or a contract line of credit?
The difference is when the capital is needed. Factoring needs an invoice. A contract line of credit can fund mobilization and earned but unbilled work before the first invoice exists, then advance against receivables once it does.
If the need starts after you have billed and comes and goes, factoring is usually the simpler and cheaper structure. If you need capital at every stage of the award, a line covers what factoring cannot reach. We compared all of the structures in this breakdown of the credit products government contractors actually use.
Common questions
Is invoice factoring a loan? No. Factoring is the sale of a receivable rather than borrowing against it, which is why it does not add debt to your balance sheet in the way a term loan does.
Does the agency know my invoices are factored? Yes. Assigning payment is a formal, documented process at every level of government. The agency is notified and payment is directed accordingly. It is routine, and contracting officers see it regularly.
Will the agency think I am in financial trouble? No. Assigning payment does not change your obligations under the contract and it does not enter into performance evaluation. Plenty of well-capitalized contractors factor because it is cheaper than holding idle cash.
Do I have to factor every invoice? No. Every invoice on an assigned contract pays through the facility, but whether to take an advance against any one of them is your decision, and an invoice you do not advance against carries no fee.
Can I factor with a bank line already in place? Usually. The two sit alongside each other through an intercreditor agreement, which sets out who has priority over what. An existing lien discovered late is the thing most likely to slow an approval down.
Does this work for state and municipal contracts? Yes. Factoring works the same way against a state, county or city receivable as a federal one. What differs is how payment gets assigned: federal work uses the Assignment of Claims Act, and every other jurisdiction has its own procurement code.
What happens if the agency pays late? The fee runs on how long the invoice is outstanding, so a late payment costs more on an advanced invoice and nothing on one you left alone. That is the situation the product exists for, and a late payer is worth knowing about early.