5 Reasons Government Contractors Need DCAA-Aware Accounting

Sam's List Editorial | 2026-06-23

5 Reasons Government Contractors Need DCAA-Aware Accounting

A clean set of books that would make any small-business CPA proud can still fail a federal audit cold.

That is the trap of government contractor accounting. DCAA — the Defense Contract Audit Agency — does not grade your books on whether they balance. It grades them on whether your costs are sorted, tracked, and documented the exact way the Federal Acquisition Regulation requires. A generalist firm can do everything "right" by GAAP standards and still leave you exposed to a finding, a payback, or a contract you suddenly can't keep.

Here are five reasons why a contractor with cost-reimbursable or time-and-materials work needs DCAA-aware accounting from day one — and why the firm doing your taxes probably isn't built for it.

1. DCAA wants your costs segregated three ways, and QuickBooks-out-of-the-box won't do it

The foundation of DCAA-compliant accounting is a job-cost system that segregates costs into three buckets: direct, indirect, and unallowable.

Direct costs are charged to a specific contract. Indirect costs — rent, admin salaries, the office coffee — get pooled and allocated across contracts. Unallowable costs (more on those in a minute) get walled off entirely so they never touch a government invoice.

A standard accounting setup lumps these together because, for a commercial business, it doesn't matter. For a GovCon, it is the whole game. If your chart of accounts can't show direct, indirect, and unallowable as distinct, auditable streams, you don't have a non-compliant system — you have no system, as far as DCAA is concerned.

The fix is structural, not cosmetic. It means a chart of accounts and a cost-accumulation structure built around the contract from the start.

2. Your indirect cost rates have to be calculated, not guessed — or you'll be writing the government a check

This is where government contractor accounting DCAA rules turn into real money.

When you bid a cost-reimbursable contract, you bill the government at provisional indirect rates — your best estimate of overhead and G&A as a percentage of direct cost. At year end, you calculate your actual rates. If you billed at a higher rate than you actually incurred, you owe the difference back.

Here's the math. Say you bill $1.2M of direct labor in a year at a provisional overhead rate of 60%. That's $720,000 of overhead billed. If your actual overhead rate comes in at 48%, your true recoverable overhead was $576,000 — and you just over-billed the government by $144,000 that you have to return.

A firm that doesn't track indirect rates monthly only finds this out at year end, when the bill is already baked in. A DCAA-aware accountant watches the spread between provisional and actual all year, so the surprise never happens.

3. Timekeeping is audited down to the day, and "I'll fix it Friday" is a finding

Labor is the single largest cost on most service contracts, which makes it the first place DCAA looks.

DCAA-compliant timekeeping is its own discipline. Every employee records time daily — not at the end of the week from memory. Time is charged to a specific contract or indirect code. Corrections leave an audit trail showing who changed what and why. And the system has to feed your contract-coded labor straight into the cost accumulation structure, so the hours on the timesheet match the dollars on the invoice.

It sounds bureaucratic because it is. But this is the area where sloppy records do the most damage. Reconstructed timesheets, missing daily entries, or labor that can't be traced to a contract code are among the fastest ways to draw a finding — and a finding on labor can put the contract itself at risk.

A generalist bookkeeper sees timekeeping as a payroll input. A GovCon accountant sees it as audit evidence.

4. The FAR says some of your real expenses can't be billed — and you have to prove you removed them

Unallowable costs are real business expenses you genuinely paid for that the government has simply decided it will not reimburse.

The list is long and specific under FAR Part 31. Common examples include entertainment, alcohol, lobbying, certain advertising, interest on borrowed money, and bad debts. These are legitimate costs — they're just not billable to a federal contract.

The trap is that hoping nobody notices is not a strategy. Under DCAA-compliant accounting, unallowable costs have to be identified and segregated into separate accounts so they are provably excluded from every indirect pool and every invoice. If unallowable costs are sitting inside the overhead you billed against, that's an overcharge — and if it looks deliberate, penalties can stack on top of the repayment.

A DCAA-aware setup builds the screening in. Unallowable accounts exist before the expense is ever booked, so nothing slips into a billable pool by accident.

5. The incurred cost submission is a yearly event most CPAs have never seen

If you hold cost-reimbursable or T&M contracts, you owe an annual incurred cost submission — and it is unlike anything in commercial accounting.

The incurred cost submission (the "ICS," sometimes filed via the ICE model) reconciles the provisional rates you billed all year against your actual costs, so the government can set your final indirect rates. Under FAR clause 52.216-7, it is due within six months of your fiscal year-end — for a calendar-year contractor, that's June 30 of the following year.

It is not a one-page form. A complete ICS is a stack of interlocking schedules — indirect rate calculations, direct costs by contract, payroll reconciliations, subcontract listings, and a signed certification of final indirect costs — every figure of which has to tie back to your books.

Most generalist firms have never prepared one. That's not a knock on them; it's just not in the commercial playbook. But if your accountant goes quiet when you say "incurred cost submission," you're going to be assembling it yourself in a panic six months after year-end.

A firm that already speaks DCAA, FAR, and ICS

The pattern across all five reasons is the same: government contractor accounting isn't harder math, it's a different rulebook. And you don't want to be teaching your accountant the rules while DCAA is reading your file.

That's why GovCon owners look for a firm with real federal-contracting depth. Steady Co is featured on Sam's List as an accounting, tax, and fractional CFO practice that pairs Big 4 and in-industry experience — the kind of background that knows what a job-cost structure, an indirect rate, and an incurred cost submission actually require.

A fractional CFO who has lived inside the FAR is the difference between a clean audit and a five-figure payback.

Find a GovCon accountant who actually knows DCAA

If you're a government contractor running cost-reimbursable or T&M work on a generalist accounting setup, the question isn't whether DCAA will care — it's when.

Read Steady Co's verified reviews on Sam's List and book an intro call to walk through your cost structure before your next incurred cost submission is due. Bring your chart of accounts. A 30-minute conversation now is a lot cheaper than a finding later.

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