Defense contracting operates under financial scrutiny that no commercial industry matches. Federal acquisition regulations govern which costs are allowable. Cost accounting standards dictate how costs must be allocated and disclosed. The Defense Contract Audit Agency reviews contractor records and can question costs years after they were incurred.
A defense finance and accounting service built for this environment does not simply record transactions accurately, it maintains records structured to survive a DCAA audit and support the incurred cost submissions, indirect rate proposals, and contract-level reporting that government contracts require.
Bob's Bookkeepers provides defense finance and accounting services for contractors and government suppliers who need financial management aligned to federal requirements rather than general commercial practice.


Financial errors in defense contracting carry consequences that commercial businesses do not face. Questioned costs reduce recoverable amounts on cost-reimbursement contracts. An inadequate accounting system finding can disqualify a contractor from receiving cost-type awards entirely. Under the False Claims Act, submitting a claim the contractor knew or should have known was false exposes the company to treble damages plus per-claim civil penalties.
Compliance-focused bookkeeping addresses this by maintaining audit-ready records continuously rather than assembling them when an audit notice arrives. Indirect cost pools stay structured according to disclosed practices. Fringe, overhead, and G&A rates stay documented and supportable. Unallowable costs are identified as incurred rather than reconstructed later.
The practical benefit is that a DCAA audit becomes a document production exercise rather than a reconstruction project.
Defense manufacturing adds cost accounting complexity that service-based contractors do not encounter. Material costs, direct labor, work-in-progress, and production overhead must be tracked across multiple contracts concurrently, and allocated according to the contractor's disclosed accounting practices.
Defense industry accounting solutions require familiarity with the Cost Accounting Standards framework. Under changes enacted through Section 1806 of the FY2026 National Defense Authorization Act and effective for contracts awarded on or after June 30, 2026, CAS applies to contracts of $35 million or more, with full coverage now triggered at $100 million. Contracts between those thresholds fall under modified coverage, requiring compliance with four standards: CAS 401 (consistency in estimating, accumulating, and reporting costs), CAS 402 (consistency in allocating costs incurred for the same purpose), CAS 405 (accounting for unallowable costs), and CAS 406 (cost accounting period).
Contracts awarded before June 30, 2026 retain the coverage determination made at award. A contract signed under the prior thresholds does not become exempt because the regulation changed.
Growth in defense contracting increases regulatory exposure rather than just administrative volume. Moving from a single contract to a multi-award portfolio means managing multiple cost pools, tracking indirect rates across a larger base, and maintaining consistency in cost allocation practices that the government will examine.
Defense contractor accounting specialists help growing contractors build accounting infrastructure that holds up under expanded scrutiny, before the first audit rather than in response to one. A contractor transitioning from commercial work into government contracting for the first time faces a particularly steep requirement: the accounting system itself must be adequate for government contract work, and adequacy is determined by audit, not by assertion.
Operating across multiple facilities introduces cost segregation requirements, state tax obligations that vary by location, and intercompany transactions that must be documented and eliminated correctly in consolidated reporting. Each facility may support different contracts with different reporting requirements and different indirect rate structures.
Outsourced defense contractor accounting gives multi-location contractors a centralized financial function without staffing an accounting team at each site. Reporting consolidates. Processes stay consistent across locations. Each facility's financial records align to the same compliance framework rather than reflecting whoever set up the books locally.
Every contractor operates with a different mix of contract types, compliance requirements, and growth objectives. A cost-plus-fixed-fee portfolio creates different accounting demands than a firm-fixed-price one. A prime contractor carries obligations that a subcontractor at tier three does not.
Bob's Bookkeepers structures each engagement around the contractor's actual contract mix and reporting obligations, not a standard package applied regardless of what the contracts require. Access to defense contractor bookkeeping experts means questions about cost allowability, allocation, or documentation get answered before a submission goes out rather than after a finding.
Our bookkeeping services can include contract-level cost tracking, labor distribution, accounts payable and receivable, indirect cost support, and ongoing financial reporting. Get accounting support built around your government contracting requirements, without building a full in-house team.
Selecting an accounting firm for defense contract work requires evaluating something beyond general accounting competence. The relevant question is whether the firm understands what makes government contract accounting different: which costs are unallowable under FAR Part 31, how indirect rates are structured and defended, what an adequate accounting system looks like from an auditor's perspective, and what documentation a DCAA reviewer expects to find.
Bob's Bookkeepers builds financial infrastructure designed for the compliance environment each client operates in. Engagements begin with a review of the current accounting structure, the contract portfolio, and the reporting obligations that apply, before any scope is defined.
Two distinct things share this name. The Defense Finance and Accounting Service (DFAS) is a federal agency within the Department of Defense that processes payments to contractors, contractors submit invoices through the Wide Area Workflow system, which routes to DFAS for payment.
A private defense finance and accounting service refers to accounting support provided to contractors: incurred cost submissions, indirect rate calculations, contract-level cost tracking, and audit preparation aligned to FAR and DFARS requirements. The two are unrelated, one pays contractors, the other helps contractors maintain records that support what they bill.
Standard accounting produces financial statements under GAAP for internal management and tax reporting. Government contract accounting adds a separate layer: cost allowability determinations under FAR Part 31, allocation practices governed by Cost Accounting Standards where applicable, timekeeping systems that meet DCAA standards, and reporting requirements including incurred cost submissions that have no commercial equivalent. A contractor can be fully GAAP-compliant and still have an accounting system determined inadequate for government contract work.
Because the failure modes are different. A commercial accounting error produces an inaccurate financial statement. A government contract accounting error can produce questioned costs, withheld payments, an inadequate system determination that blocks future cost-type awards, or in cases involving knowing submission of false claims, liability under the False Claims Act. Firms without government contracting experience frequently do not recognize the distinction between an accounting problem and a compliance problem until an audit identifies it.
Incurred cost submissions, provisional and final indirect rate proposals, cost pool structuring and allocation base documentation, labor distribution and timekeeping reconciliation, unallowable cost identification and segregation under FAR Part 31, CAS Disclosure Statement preparation where required, and audit support during DCAA reviews.
It provides access to government contract accounting expertise without the cost of building that capability internally, which for most small and mid-size contractors means hiring someone with specific FAR, DFARS, and DCAA experience at a salary the contract base may not yet support. The compliance benefit comes from consistency: the same practices applied every period, documented as applied, which is the standard CAS and DCAA both measure against.
Audit readiness is a function of ongoing practice, not preparation. Cost pools structured correctly and documented as structured. Indirect rates calculated consistently with support retained. Unallowable costs identified as incurred rather than located retroactively. Timekeeping records maintained to the standard DCAA expects. Contractors maintaining these practices continuously respond to an audit notice by producing documents. Contractors who do not respond by reconstructing records under deadline, which is where findings originate.