A government contractor can have a pristine backlog, a no-setoff commitment on every prime contract, and a clean Assignment of Claims Act notice package ready to file — and still watch a lender carve a third of its federal receivables out of the borrowing base on day one. The reason is almost never the law. It is the readiness of the receivables: whether the contractor can prove, line by line, that each invoice represents work performed, accepted, properly billed, and free of dispute. The statute makes federal AR assignable. Documentation discipline is what makes it eligible. This is the operational readiness playbook.
For four decades I have worked the lender side of asset-based lending — SFNet Hall of Fame, Lifetime Achievement Award, author of Asset Based Lending Disciplines, the first textbook published on the field, and trainer of more than 5,000 underwriters and examiners at GE Capital, JP Morgan Chase, Lloyds, and Barclays. The mechanics of the Assignment of Claims Act, FAR Subpart 32.8, and the no-setoff clause are covered in depth in our companion article on how the Assignment of Claims Act makes federal receivables bankable. This piece assumes you understand that legal backbone and turns to the question a CFO actually controls: how to prepare the receivables so the lender's diligence and field exam confirm them rather than reserve them.
Why Federal Receivables Get Reserved Even When They Are Real
Commercial accounts receivable are simple to verify: an invoice, a purchase order, a shipment, a customer who confirms the balance. Federal contract receivables carry more moving parts, and each one is a place where an examiner can find a reason to make a receivable ineligible. The lender is not being difficult — under an asset-based facility, availability is built on collateral the lender can verify and, if necessary, collect. A receivable the lender cannot trace to performed-and-accepted work is a receivable the lender will not lend against at full value.
The contractor who walks into the process with the receivables already packaged the way a lender tests them keeps the most availability. The contractor who treats it as a paperwork exercise to do later loses borrowing capacity to reserves that disciplined preparation would have prevented. The gap between those two outcomes is frequently larger than the difference between two lenders' headline advance rates. For the broader version of this principle across all collateral, see our ABL due diligence checklist.
Billed vs Unbilled Receivables: The First Distinction the Lender Draws
The single most important readiness concept for a government contractor is the line between billed and unbilled receivables, because lenders treat them very differently.
Billed receivables
A billed receivable is an invoice that has been submitted to the government payor — typically through the Wide Area Workflow / Invoicing, Receipt, Acceptance, and Property (WAWF/iRAPT) system on defense work, or the relevant civilian agency portal. It represents work the contractor has performed and for which it has formally requested payment. Billed federal AR is the core of a government-contractor borrowing base. It is eligible at the highest advance rates the facility allows, subject to aging, concentration, and the eligibility carve-outs below.
Unbilled receivables
An unbilled receivable is revenue the contractor has earned (work performed, costs incurred) but has not yet invoiced. Unbilled balances arise constantly in government contracting: milestone billing schedules that lag performance, cost-type contracts where indirect rates have not been applied, retainage held back until a deliverable is accepted, work-in-process on a contract that bills monthly in arrears, or amounts pending a contracting officer's administrative action.
Lenders are cautious with unbilled AR because it has not yet been presented to the payor and therefore is not yet a confirmed claim. Many ABL facilities exclude unbilled receivables entirely. Others allow a limited unbilled sublimit — often a capped dollar amount or a percentage of the total borrowing base — at a reduced advance rate, and only for unbilled amounts the contractor can demonstrate are billable within a short, defined window (commonly 30 to 60 days). The readiness task is to minimize the unbilled balance by billing promptly and accurately, and to be able to age and document whatever unbilled remains so the lender can give partial credit rather than zero.
A practical readiness rule: every day a billable amount sits unbilled is a day it earns a lower advance rate or none at all. Tight billing discipline is one of the highest-return operational levers a government contractor controls before going to market.
The Eligibility Carve-Outs That Apply Specifically to Federal AR
On top of the standard ABL ineligibles — past-due, cross-aged, contra, concentration — covered in our walkthrough of eligible vs ineligible receivables and the compounding math in our ineligible calculations article, federal receivables carry their own readiness checklist:
- Aging window. The government pays slowly. Commercial ABL typically cuts eligibility at 90 days; government-contractor facilities commonly extend to 120 or even 150 days from invoice date to reflect real federal payment cycles. Know which window your prospective lender uses and reconcile your aging to invoice date, not service date.
- Prime vs subcontract status. Only prime contract receivables qualify for assignment under the Assignment of Claims Act. Subcontract receivables — where you bill a prime, not the government — are treated as ordinary commercial AR against that prime's credit, with normal concentration limits. Segregating prime from subcontract AR in your reporting is essential; lenders advance differently against each.
- Acceptance status. A receivable for work that has not been formally accepted by the government carries more risk than one that has. Have the acceptance evidence (inspection sign-off, DD-250 / Material Inspection and Receiving Report, WAWF acceptance record) attached to the invoice record.
- Retainage. Amounts withheld by the government pending final acceptance are typically ineligible until released, because they are conditional. Track retainage as its own category — do not let it inflate the billed-AR figure on your borrowing base certificate.
- Cost-type and T&M exposure. On cost-reimbursement and time-and-materials contracts, billed amounts can be adjusted after the fact when indirect rates are finalized or costs are questioned. Lenders reserve against open audit exposure. A clean incurred-cost history reduces the reserve.
- Disputes and pending claims. Any invoice subject to a dispute, a request for equitable adjustment, a pending claim, or a contracting officer's withholding is ineligible until resolved.
The Readiness Checklist: What to Have Ready Before the Lender Asks
The table below is the document and data package a government contractor should assemble before going to market. Having it ready does two things: it shortens diligence, and it lets the lender give you credit for receivables that an unprepared borrower would lose to conservative reserves.
| Readiness Item | What the Lender Is Verifying | What to Have Ready |
|---|---|---|
| Contract / invoice package | That each invoice ties to a valid prime contract and a billable event | Contract number, CLIN detail, the submitted invoice, and the billing-schedule basis for each open receivable |
| Acceptance documentation | That the work was performed and formally accepted | DD-250 / inspection-and-receiving reports, WAWF acceptance records, milestone sign-offs |
| Billed vs unbilled split | Which AR is a confirmed claim vs earned-but-uninvoiced | An aged report that segregates billed from unbilled and ages each by invoice/earn date |
| Retainage schedule | How much is withheld and conditional | Retainage tracked separately, by contract, with release conditions noted |
| Disputes / claims log | Whether any receivable is contested or under withholding | A current log of disputes, REAs, claims, and contracting-officer withholdings |
| Assignment / notice status | Whether the AR can be assigned and is no-setoff protected (educational; counsel handles execution) | A contract-by-contract map of assignability and no-setoff coverage — see the Assignment of Claims article |
| Customer concentration | How exposure is distributed across agencies, contracts, and payors | AR by agency / contract vehicle, with concentration percentages calculated |
| Payment history | Realistic days-to-pay by agency and contract type | A rolling DSO analysis by payor showing actual federal payment cadence |
| Subcontract / prime status | Which AR qualifies for assignment vs is commercial | AR clearly tagged prime vs subcontract, with the prime's credit identified on sub AR |
| Reporting cadence | Whether you can produce a clean borrowing base certificate on schedule | A borrowing base certificate process that reconciles to the GL and the aging |
| Field-exam readiness | That a third party can verify all of the above | The above, organized and reconcilable on request — see the field exam playbook |
Concentration: The Quiet Constraint in Government Contracting
Government contractors often assume that because the United States does not default, concentration does not matter. Lenders do not see it that way. They look through "the government" to the specific contracts, agencies, and contract vehicles that generate the AR, because the risk that matters operationally is contract-specific: a stop-work order, a termination for convenience, a funding lapse, or a recompete loss affects a specific contract, not the federal government as a whole.
A contractor with 70 percent of its receivables tied to a single contract that is up for recompete in eight months is a concentration risk, no matter how creditworthy the ultimate payor. Readiness means presenting concentration honestly — by contract, agency, and contract vehicle — and being ready to discuss recompete timing, option-year exercise history, and backlog diversification. Surprising the lender with concentration in the field exam is far worse than addressing it proactively in the credit memorandum.
The Word the Search Data Keeps Surfacing: Allocability
Among the queries that bring government contractors to this topic, allocability recurs — and it is worth understanding why it matters to a lender even though it is a cost-accounting concept. Allocability, alongside allowability and reasonableness, governs which costs a contractor may charge to a government contract. A cost is allocable if it is incurred specifically for the contract, benefits the contract and other work and can be distributed in reasonable proportion, or is necessary to the overall operation of the business.
For ABL purposes, allocability is not a line on the borrowing base — it is a driver of the reliability of billed amounts on cost-type contracts. If a contractor charges costs to a contract that are later found unallocable or unallowable in an incurred-cost audit, billed receivables can be retroactively reduced and amounts already collected can be clawed back. That is precisely the exposure a lender reserves against. The readiness takeaway: a disciplined cost-accounting system with clean allocability practices and a settled indirect-rate history directly reduces the reserve a lender places on your cost-type federal AR. It is a financing issue dressed as an accounting issue.
This is educational context for how lenders think about cost-type federal receivables — not government-contracting or cost-accounting advice. Your accounting and contracts teams own allocability determinations.
Cash Path: How Federal Payments Reach the Lender
Once the Assignment of Claims Act notice is filed and acknowledged, the government's disbursing officer redirects payments to the lender-designated lockbox. Operationally this resembles a standard cash-dominion lockbox, with one important wrinkle: the lockbox address is hard-coded into the assignment notice and cannot be changed without filing an amended notice. The readiness implication is that your depository arrangements should be settled before the notice is filed, because changing banks mid-facility is a multi-week paperwork exercise across the contracting officer, disbursing officer, and surety. For the mechanics of how cash control works in ABL generally, see our piece on full vs springing cash dominion.
How Federal Receivables Financing Compares to Factoring
Some government contractors first encounter receivables financing through invoice factoring rather than a revolving ABL facility. The distinction matters at the readiness stage. Factoring advances against individual invoices, often with notification to the payor and a focus on debtor quality; an ABL revolver advances against a formula-driven borrowing base of eligible AR with the contractor managing the relationship. Our articles on AR financing vs factoring and the factoring funder's review checklist cover the comparison; the readiness items above — billed vs unbilled, acceptance evidence, retainage, prime status — apply under either structure, because both funders need to verify the same underlying receivable. For how the revolving facility itself works, see our ABL facility loan guide and the mechanics of how advance rates are set.
Choosing a Lender That Understands Federal AR
Not every ABL lender is comfortable with government receivables. The ones that are have dedicated government-contracting groups, examiners who know WAWF and DD-250s, and credit policies that already contemplate the 120-to-150-day aging window and the prime-vs-subcontract distinction. Going to a lender without that fluency means educating the credit committee from scratch and absorbing conservative reserves while they get comfortable. Matching the deal to lenders with stated appetite for federal receivables is a core part of the placement work — see our guide on choosing the right ABL lender.
Where Independent Advisory Helps
We are an independent ABL advisor and loan placement consultant. We do not lend, fund, broker, or guarantee facilities, and we do not provide legal, tax, accounting, or government-contracting advice — final credit and funding decisions are always made by the lender, and contract and cost-accounting determinations belong to your counsel and accountants. Our role on a government-contractor deal is to help you prepare federal receivables the way a lender's field examiner will test them: segregating billed from unbilled, documenting acceptance, isolating retainage and disputes, mapping prime vs subcontract AR, and presenting concentration and payment history honestly in a credit-committee-ready package. The parallel field-exam practice at ABLC performs the collateral verification on many government-contractor facilities and gives us a current, working view of exactly what survives eligibility testing and what gets reserved.
The Bottom Line
The Assignment of Claims Act makes federal receivables assignable; documentation discipline makes them eligible. The contractors who keep the most borrowing capacity are the ones who bill promptly to minimize unbilled AR, attach acceptance evidence to every invoice, track retainage and disputes separately, segregate prime from subcontract receivables, keep a clean allocability and indirect-rate history on cost-type work, and present concentration and payment history honestly before the field exam finds them. Do that preparation up front and federal receivables underwrite as what they are — the highest-quality counterparty risk in the economy. Skip it and you finance the same receivables at a discount you did not need to take.
If you are a government contractor preparing to put federal receivables in front of an ABL lender, we will help you get the package ready. Submit your situation and we will respond inside 24 hours.
Government contractor preparing federal receivables for ABL?
We will help you segregate billed vs unbilled AR, document acceptance and retainage, map prime vs subcontract receivables, and present concentration and payment history in a credit-committee-ready package — the way the lender's field examiner will test it. Submit your situation and we will respond inside 24 hours. Call (954) 962-0099 or email info@donclarkeenterprises.com.
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