Quick answer: The most common DCAA compliance mistakes government contractors make include poor timekeeping practices, unallocable costs, inadequate indirect cost tracking, and lack of an accounting system that meets DCAA standards. Catching these errors early can prevent audit failures, payment delays, and contract terminations.Government contracting comes with real financial opportunity—but also a strict set of rules. The Defense Contract Audit Agency (DCAA) exists to ensure contractors are billing the government accurately and fairly. When they find problems, the consequences range from disallowed costs to contract termination.
The good news? Most DCAA compliance failures are preventable. Here are the most common mistakes contractors make—and what to do instead.
What are the most common DCAA compliance mistakes?
1. Inaccurate or inconsistent timekeeping
Timekeeping is the backbone of DCAA compliance. Every hour worked must be recorded daily, by the employee who performed the work, and allocated to the correct contract or cost objective. Supervisors recording time on behalf of employees, or employees logging hours at the end of the week from memory, are immediate red flags in an audit.
What to do instead: Implement a timekeeping system that records hours daily and maintains an audit trail. Employees should log their own time, and any corrections should be documented with a reason and an approving signature.
2. Misclassifying direct and indirect costs
Direct costs are those tied to a specific contract. Indirect costs—like rent, utilities, and administrative salaries—benefit multiple contracts and must be allocated through a formal indirect cost rate. Misclassifying costs in either direction is one of the most frequently cited DCAA audit findings.
What to do instead: Establish clearly written cost accounting policies that define which costs are direct and which are indirect. Apply these policies consistently across all contracts.
3. Using an accounting system that doesn't meet DCAA standards
Not all accounting software is DCAA-compliant. A compliant system must be able to segregate direct from indirect costs, track costs by contract, and produce reports that support billing. QuickBooks, for example, can be configured for DCAA compliance—but only if set up correctly.
What to do instead: Before pursuing government contracts, confirm that your accounting system meets the requirements outlined in SF 1408, the pre-award survey of prospective contractor accounting systems. A qualified accountant with government contracting experience can help you assess and configure your system.
4. Inadequate documentation for unallowable costs
Certain costs—like lobbying, entertainment, and fines—are explicitly unallowable under the Federal Acquisition Regulation (FAR). Contractors must not only exclude these from billing, but also track and document them separately. Failing to do so can cause unallowable costs to contaminate indirect cost pools.
What to do instead: Identify all unallowable costs under FAR Part 31 and create a separate account to track them. This keeps your indirect rates clean and demonstrates transparency during an audit.
5. Failing to prepare for a DCAA audit proactively
Many contractors treat DCAA compliance as a reactive process—scrambling to gather documentation only when an audit is scheduled. This approach leads to gaps, inconsistencies, and disallowed costs that could have been avoided with proper recordkeeping throughout the year.
What to do instead: Conduct internal compliance reviews on a regular basis. Review your timekeeping records, cost allocations, and indirect rates quarterly. The goal is to identify problems before a DCAA auditor does.
How can government contractors avoid DCAA audit failures?
Consistent, proactive compliance is the most reliable path to a clean DCAA audit. That means accurate daily timekeeping, a properly configured accounting system, documented cost accounting policies, and regular internal reviews. Contractors who treat compliance as an ongoing process—rather than an audit-time checklist—are far less likely to face disallowed costs or contract disputes.
For small and medium-sized businesses managing government contracts alongside day-to-day operations, maintaining this level of rigor internally can be a stretch. Partnering with an accounting team that specializes in government contracting is often the most cost-effective way to stay compliant without pulling focus from core business activities.
Frequently asked questions about DCAA compliance
What does DCAA stand for?
DCAA stands for the Defense Contract Audit Agency, the U.S. federal agency responsible for auditing Department of Defense contracts and certain other government contracts.
What triggers a DCAA audit?
DCAA audits can be triggered by a new contract award, billing discrepancies, a pre-award accounting system review, or as part of a routine audit cycle.
Does DCAA compliance apply to small businesses?
Yes. DCAA compliance requirements apply to any contractor billing the U.S. government under a cost-reimbursable contract, regardless of business size.
What happens if a contractor fails a DCAA audit?
Consequences can include disallowed costs, repayment obligations, contract termination, and in serious cases, suspension or debarment from future government contracting.
