How a DCAA Audit Works
The audit process generally begins with defining the audit objective and identifying the contractor records needed for examination. Auditors may review accounting policies, transaction data, contracts, timekeeping records, indirect cost calculations, billing information, and internal control documentation.
The contractor’s accounting system should allow transactions to be traced from source documentation through the general ledger and ultimately into financial reports or contract cost submissions. Clear evidence of approvals, adjustments, reconciliations, and supporting calculations helps demonstrate how financial information was produced.
- Define the audit scope and applicable contract requirements.
- Review accounting system processes and internal controls.
- Examine transaction-level records and supporting documentation.
- Test labor, direct costs, indirect costs, and billing information as applicable.
- Document findings and address identified control or accounting issues.
Labor, Timekeeping, and Cost Classification
Labor accounting is a significant area of attention because employee time can directly affect contract costs and indirect cost allocations. Contractors should maintain consistent timekeeping practices, document employee activity accurately, and apply established labor charging procedures.
The DCAA Timekeeping & Labor Cost Tracking Guide provides educational guidance on DCAA timekeeping requirements, labor cost tracking practices, compliance considerations, and maintaining audit readiness. These procedures should be connected to the contractor’s accounting system so that labor records reconcile with payroll and contract cost information.
Cost classification is equally important. Transactions should be assigned to appropriate accounts, projects, contracts, and cost pools. During invoice processing, accurate extraction, validation, matching, approval, and posting help maintain reliable records, while consistent gl coding supports traceability between source transactions and financial reporting.
ERP Systems and DCAA Audit Readiness
An ERP system can provide the central structure for accounting, project costing, purchasing, billing, timekeeping, and financial reporting. When evaluating or implementing an ERP, contractors should examine whether the system supports required controls, transaction traceability, segregation of duties, and reliable reporting.
The DCAA-Compliant ERP: 2026 Buyer's Guide + AI Audit Tips discusses ERP selection considerations for government contractors, including features that support DCAA compliance and year-round audit readiness. Contractors evaluating ERP architecture can also use ERP for Government Contractors: The Complete Guide (2026) to understand ERP features, DCAA considerations, implementation practices, and system selection factors.
ERP integration and migration should preserve accounting structures, historical records, approval workflows, and relevant audit evidence. Extending finance workflows around an ERP should likewise maintain consistent controls and traceability rather than creating disconnected records.
Audit Evidence and Traceability
Strong audit evidence allows a reviewer to understand what happened, when it happened, which data changed, and who performed or approved the activity. An Audit Trail provides this chronological record and is particularly useful when examining transaction changes, approvals, corrections, and system activity.
Invoice processing can also benefit from detailed Audit Trails that capture actions, timestamps, and data changes throughout the workflow. Vendor payment processes may use Audit Trails For PO to document actions associated with approvals, payments, automation, and reconciliation.
Accrual accounting requires similar documentation. Audit Trails For Accruals can preserve evidence of accrual preparation, approvals, and related processing steps, supporting review procedures and audit documentation.
Indirect Costs, Billing, and Compliance Reviews
DCAA audit work can involve indirect cost pools, allocation methodologies, billing practices, and incurred cost submissions. Contractors need documented methods for determining how indirect expenses are accumulated and allocated to benefiting contracts or activities.
Accurate accruals are important because period-end accounting affects reported contract costs and financial statements. Maintaining reliable accruals and supporting journal entries helps finance teams reconcile recorded expenses with the period in which the underlying activity occurred.
Sales tax and other transaction-level compliance activities can also require supporting evidence. Audit Trails for Sales Tax Verification can provide logs of verification actions and journal-entry workflows, helping preserve traceability when tax-related transactions are reviewed.
DCAA Audit Compared With Other Audit Types
A System Audit examines whether an information system, its controls, configurations, and related processes operate according to defined requirements. In a DCAA environment, system controls can be relevant because accounting records and audit evidence may depend on the reliability of the underlying ERP and financial applications.
A Compliance Audit focuses on whether activities, records, and controls conform to specified laws, regulations, contractual requirements, or organizational policies. A DCAA audit may include compliance-focused procedures depending on its scope and objective.
Maintaining a reliable Audit Trail across financial and operational systems helps connect these different review areas by providing evidence that supports transaction history, approvals, adjustments, and control execution.
Best Practices for DCAA Audit Readiness
Audit readiness is an ongoing finance discipline rather than an activity limited to the period immediately before an audit. Government contractors should maintain consistent accounting practices, reconcile records regularly, and preserve supporting documentation throughout the contract lifecycle.
- Maintain documented accounting and cost allocation policies.
- Reconcile labor, payroll, project, billing, and general ledger records regularly.
- Review indirect cost pools and allocation methodologies consistently.
- Maintain traceable evidence for transactions, approvals, adjustments, and system changes.
- Review ERP access and financial controls periodically.
- Resolve identified exceptions and retain evidence of corrective actions.
Summary
DCAA Audit examines financial and accounting practices that support government contracting, with attention to cost allowability, allocation, accounting system controls, labor charging, billing, documentation, and audit evidence. Contractors can strengthen audit readiness by maintaining accurate records, consistent cost classifications, reliable ERP workflows, documented controls, and complete transaction histories. These practices support dependable financial reporting and informed contract management decisions.