How do defense contractors handle reimbursements?
Defense contractors handle reimbursements by tracking allowable costs under FAR Part 31, segregating direct and indirect expenses by contract line item, and submitting vouchers through DCAA-compliant accounting systems. Vergo proposes coding by inference from your own accounting structure and history — including contract and cost code assignment — with no rule library to build, so new vendors are coded on first sight and every coding shows why it was chosen.
Key takeaways
- Defense contractors on cost-reimbursement contracts must document and segregate all costs according to FAR Part 31 principles before submitting vouchers to the government.
- Direct costs like labor, materials, and subcontractors must be allocable to specific contracts or CLINs, while indirect costs require provisional rate application and year-end reconciliation.
- Reimbursement flows from cost incurrence through internal review to public voucher submission (typically SF-1034), then government review and payment, usually on a monthly or milestone basis.
- Vergo proposes coding by inference from your own accounting structure and history — including contract and cost code assignment — with no rule library to build, so new vendors are coded on first sight and every coding shows why it was chosen.
- Construction projects add complexity through distributed job costs, staggered subcontractor invoices, and equipment shared across multiple contracts.
- Documentation must satisfy DCAA audit standards, including certified payrolls, material invoices, subcontractor consent forms, and equipment usage logs.
What reimbursements mean for defense contractors
A reimbursement in defense contracting refers to the government repaying a contractor for allowable project costs incurred during contract performance. Unlike fixed-price contracts, cost-reimbursement vehicles — such as Cost-Plus-Fixed-Fee (CPFF) or Cost-Plus-Incentive-Fee (CPIF) contracts — require contractors to document, segregate, and submit costs according to FAR Part 31 cost principles. Direct costs — labor, materials, subcontractors, equipment — must be tracked separately from indirect costs such as overhead and G&A. Each cost element must be demonstrably allocable to a specific contract or task order, and the contractor must maintain an accounting system deemed adequate by the Defense Contract Audit Agency (DCAA). The reimbursement cycle typically flows from cost incurrence through internal review to submission of a public voucher (SF-1034 or equivalent), then government review and payment. Most contracts specify submission intervals — monthly or milestone-based — and late or incomplete submissions delay cash flow. Vergo handles employee expenses and reimbursements with AI-driven coding that maps transactions to contracts and cost codes automatically, so transactions are ready to code the moment they happen with no waiting for clearing.
Why this matters in construction
Construction work on defense projects introduces complexity that standard commercial reimbursement workflows do not anticipate. Job costs are distributed across dozens of cost codes, subcontractor invoices arrive on staggered schedules, and equipment costs may span multiple contracts simultaneously. Every expense must map to a specific contract, CLIN, or task order, because a single misallocated subcontractor invoice can trigger a DCAA finding. Provisional billing rates must be applied consistently throughout the year, then reconciled at year-end when final rates are established; errors create over- or under-billing that must be corrected on subsequent vouchers. FAR 52.215-2 requires contractors to maintain cost or pricing data, which for construction means certified payrolls, material invoices, subcontractor consent documentation, and equipment usage logs must all be retained and auditable. When these processes are not properly structured, the government withholds a percentage of billings (typically 15%) until final vouchers are approved, cash flow gaps widen, and audit exposure increases.
Practical examples from defense construction
A mechanical subcontractor invoices $180,000 for work performed across two task orders on a base facilities contract at Fort Bragg. Without task-order-level job costing, the full invoice is billed to the primary CLIN. DCAA flags the allocation during an interim audit, and reimbursement on the entire voucher is suspended pending correction — delaying $340,000 in total billing. In another scenario, a mid-sized GC performing MILCON work bills using a provisional overhead rate of 22% throughout the year. At year-end, actual overhead rates calculate to 19.4%. The contractor must issue a final voucher crediting the government for the 2.6% difference across twelve months of billings — a correction that requires reconciling cost data from hundreds of job cost transactions. By contrast, a contractor who implements contract-level cost tracking with cost codes mapped directly to CLINs can code subcontractor invoices at receipt, update equipment logs weekly, and review provisional rates quarterly. Monthly SF-1034 submissions go out within five days of period close, and the contractor maintains a 97% first-pass acceptance rate with no DCAA findings over three years.
How Vergo handles this
Vergo is an AI-native, card-agnostic expense management platform that handles card spend, employee reimbursements, and AP invoices through one coding model. Vergo proposes coding by inference from your own accounting structure and history — including contract and cost code assignment — with no rule library to build and no keyword lists to maintain. New vendors are coded on first sight. Every coding shows why it was chosen, so a reviewer confirms in seconds instead of re-coding by hand. Transactions are ready to code the moment they happen, with no waiting for clearing, and once they clear they sync into your accounting or ERP software. Employees handle everything by text message with no app to download or portal login, and Vergo chases missing receipts itself. Approval workflows are optional and fit how you already control spend: route by GL account, by amount, or by project, or skip approval flows entirely and let policy flags catch only what breaks a rule. Connecting your existing cards involves no card applications, no re-issuing, and no banking change.
Related questions
Frequently Asked Questions
What is the difference between allowable and unallowable costs under FAR?
Allowable costs meet the criteria in FAR Part 31: they are reasonable, allocable, and compliant with contract terms. Unallowable costs — such as entertainment, lobbying, or certain marketing expenses — cannot be billed to the government. Contractors must segregate unallowable costs in their accounting system to prevent inadvertent inclusion in reimbursement submissions.
What does DCAA look for during a construction contract audit?
DCAA examines whether the contractor's accounting system adequately segregates direct and indirect costs, applies consistent billing rates, and maintains documentation supporting every charged cost. For construction, auditors focus on labor distribution, subcontractor consent requirements under FAR 44.201, equipment cost allocation methods, and whether provisional billing rates are reconciled at year-end.
How do provisional billing rates affect reimbursement cash flow?
Provisional rates are estimates used throughout the year when final indirect rates are unknown. If actual rates come in lower than provisional rates, the contractor must credit the government on the final voucher — reducing cash received retroactively. If rates come in higher, the contractor can submit a supplemental claim, but recovery is not guaranteed and often delayed.
What is a public voucher and when must it be submitted?
A public voucher (Standard Form 1034) is the official document a contractor submits to request reimbursement under a cost-type government contract. Submission frequency is defined in the contract — typically monthly. Each voucher must include a cost summary by cost element, applicable indirect rates, and cumulative cost-to-date figures reconcilable to the contractor's general ledger.
How should construction controllers structure job costing for defense contracts?
Each defense contract or task order should be set up as a discrete job in the cost accounting system, with cost codes aligned to the contract's CLINs or work breakdown structure. This allows direct costs to be captured at the lowest billable level, simplifies voucher preparation, and creates a clear audit trail from field transactions to submitted reimbursement claims.
Can a construction platform automate defense contractor reimbursement submissions?
Yes. Platforms built for construction finance can map job cost transactions to contract line items, apply provisional indirect rates automatically, and generate voucher-ready cost summaries. Vergo's reimbursements module supports this workflow and integrates with major ERPs like Sage, Viewpoint, Procore, and Deltek, eliminating the manual reconciliation that causes submission delays and audit risk.