Invoice Factoring for Government Contracts: The Cash Flow Fix Nobody Explains to New Owners

The short answer: yes, government invoices are factorable — and they're the best kind

Invoice factoring for government contracts works the same way as commercial AR factoring: you sell your outstanding invoice to a factoring company at a discount, they advance 80%–90% of the face value immediately, and they collect directly from the agency when the invoice pays. The difference is that government agencies are obligated to pay on a defined schedule — there is no credit risk on the debtor side. This makes government AR the most attractive collateral class that factoring companies accept, which is why rates for government contract factoring (1.5%–3% per 30 days) are typically lower than rates for commercial AR (2%–5%).

For a first-time owner carrying SBA acquisition debt, the cash flow math is straightforward: if your SBA 7(a) payment is due on the 15th and your first government invoice is on Net-60 terms, factoring converts a 60-day receivable into same-day cash — at a cost. The question is whether that cost is less than the cost of missing a debt service payment or drawing on a more expensive instrument like a merchant cash advance.

The complete financing picture, including the SBA Working Capital Pilot as an alternative to factoring, is covered in SBA loans for government contractors.

How government contract factoring works vs. regular AR factoring

The mechanics of government contract factoring have one critical difference from commercial factoring: the Assignment of Claims Act.

Standard commercial factoring flow: 1. You submit an invoice to a commercial customer. 2. You assign the invoice to a factoring company. 3. The factoring company advances 80%–90%. 4. The commercial customer pays the factoring company directly. 5. The factoring company remits the reserve (remaining balance minus fees) to you.

Government contract factoring — what changes:

Under the Assignment of Claims Act (41 U.S.C. § 6305), you cannot assign a government contract payment to a third party without formally notifying the contracting officer. This notification — called a Notice of Assignment — must be delivered to: (1) the contracting officer, (2) the agency payment office, and (3) the surety (if a performance bond is in place). Until the Notice of Assignment is properly filed and acknowledged, the factoring company has no security interest in the payment. The agency will legally pay the original contractor, not the factor.

Most commercial factoring guides skip this step entirely because it does not exist in private-sector AR. For government contractors, it is the step that determines whether your factoring arrangement is legally sound or a expensive mistake.

After the notice is filed, payments flow directly to the factoring company's lockbox, and the agency is notified not to pay the contractor directly. This process adds 1–3 days to the setup time for the first invoice factored under a new contract.

What the Assignment of Claims Act actually requires

The Assignment of Claims Act is a federal statute — not a contractual provision — that governs when and how government contract payments can be assigned to third parties. Here is what it requires in plain terms:

Who must receive notice: The contracting officer by name and office, the agency payment office (often a finance center like DFAS for DoD contracts), and the surety if a payment or performance bond is in place.

Form of notice: There is no standardized federal form. Most factoring companies provide their own Notice of Assignment template. It must identify the contract by number, the amount being assigned, and the assignee's (factor's) payment instructions.

Contracts that cannot be assigned: Contracts under $1,000 cannot be assigned. Contracts that contain an anti-assignment clause in the base contract may restrict factoring — read the contract before applying for factoring. Classified contracts have additional restrictions.

What happens if you skip this step: The agency is not obligated to redirect payment to the factor. Payment will go to the account on file — typically your business bank account. If you have already received the factoring advance, you now owe the factor their money back, plus potentially default interest. The factor's security interest in the invoice is unenforceable without proper notice.

A qualified government contracts attorney can review your contract and prepare the notice language. For a first contract, this is worth the legal fee.

Factoring vs. SBA WCP vs. MCA: the cost comparison for a $80K invoice

The factoring vs. WCP choice depends on setup time. If you have an SBA WCP line already in place, drawing it costs roughly one-third of factoring for the same cash advance. If you do not have a WCP line and you are in a payroll emergency, factoring's 24-hour turnaround may be the only viable option.

The MCA option is included for reference. For a business carrying SBA acquisition debt, an MCA is a last resort. The combination of SBA debt service and MCA daily payments has been described in r/govcon and r/loansforsmallbusiness threads as the fastest path to default outside of losing the contract itself.

What most articles get wrong about government invoice factoring

Most factoring content written for small businesses treats government AR as a nice-to-have feature ("we also factor government contracts!") without explaining the legal specifics that make it different from commercial factoring.

The Assignment of Claims Act omission. The most significant gap. Factoring guides that do not mention the Assignment of Claims Act are not written for government contractors — they are written for small businesses that happen to have a government customer. The Act is not optional. An unfiled notice is an unenforceable security interest.

The anti-assignment clause trap. Some contracts contain explicit anti-assignment language. Most factoring salespeople are not qualified to review federal contract language. Before you sign a factoring agreement, have the contract reviewed by someone who can identify whether your specific contract permits assignment.

The factoring rate vs. effective APR confusion. A 2% factoring rate per 30 days does not sound expensive. Annualized, it is approximately 24%. On a Net-60 invoice, the cost doubles. The table above shows what this means in dollars — it is expensive compared to an SBA WCP draw, but cheap compared to missing a debt service payment or drawing an MCA.

For context on how the SBA WCP fits into the broader cash flow picture, see how to use the SBA working capital line before your first contract pays out.

Factoring providers that specialize in government AR

Not all factoring companies are set up for government contracts. The Assignment of Claims Act notice process requires specific experience, and factoring companies that primarily handle commercial AR may not have relationships with DFAS or other federal payment offices.

When evaluating government contract factoring providers, ask specifically: - Have you factored [the specific agency] contracts before? - Do you handle the Notice of Assignment preparation and filing, or is that my responsibility? - What is your process for contracts with anti-assignment clauses? - Do you factor time-and-materials contracts, or only firm-fixed-price?

Companies that specialize in government AR factoring typically include it as a dedicated product line rather than a footnote. Rates should be clearly disclosed as a percentage per 30 days with explicit reserve and fee structures — avoid any factoring company that cannot quote a clear total cost before you sign.

Frequently Asked Questions