Fractional CFO vs Controller for a Federal Contractor

Federal contract timekeeping requires daily, direct entry by the employee themselves, not weekly reconstruction from memory or a supervisor's estimate, with a documented correction process for any changes. A contractor whose timekeeping doesn't meet this standard risks having costs questioned or disallowed entirely during an audit, which can mean real money owed back to the government. This is controller-level compliance work, and it has to be built correctly before contract volume grows, not retrofitted after an audit finding.

Indirect cost rates, overhead, fringe, G&A, need to be calculated using a consistent, defensible methodology and updated regularly as the cost base changes, not left stale for a year while new contracts get billed against outdated rates. An indirect rate that drifts too far from actual cost experience creates a true-up problem at year-end that can be large enough to affect cash flow meaningfully, and it undermines the credibility of every rate proposal submitted to a contracting officer in the meantime.

• Cost-plus contracts bill actual allowable costs plus a fee, requiring detailed cost documentation per contract
• Time-and-materials contracts bill hours at negotiated rates plus materials, with its own documentation requirements
• Firm-fixed-price contracts bill a set amount regardless of actual cost, which shifts cost-overrun risk onto the contractor
• Blending billing processes across contract types instead of following each one's specific rules risks both billing errors and audit findings

A controller managing a mixed portfolio of contract types needs distinct, correct billing processes for each one, not a single generic invoicing approach applied everywhere.

Contractors with cost-reimbursement contracts typically owe an annual incurred cost submission to the government, and a submission that's chronically late or inaccurate creates real risk: unresolved indirect rates, delayed final contract closeouts, and increased audit scrutiny on future proposals. This submission depends on clean, well-documented cost accounting all year, which is exactly why it can't be treated as a once-a-year scramble handled by whoever has time.

With DCAA-compliant timekeeping, current indirect rates, contract-type-appropriate billing, and on-time incurred cost submissions all in place, a fractional CFO's core work is contract portfolio strategy: which contract types and agencies to pursue more of given the company's actual cost structure and risk tolerance, and how proposed indirect rates compare to what similar contractors are winning with. Accountants and auditors with government contract accounting experience specifically command real pay, with national wage data showing a median near $84,000 and the top quartile above $109,000 a year¹, which is worth weighing honestly against the cost of a compliance finding if that expertise isn't in place.

Some defense contracts require finance staff who touch contract cost data to hold a security clearance, which narrows the hiring pool considerably and can extend a hiring timeline well beyond what a commercial business would expect. A fractional CFO advising a contractor with classified work should factor clearance requirements into workforce planning early, since discovering this constraint only after an offer falls through on a clearance issue can delay critical compliance work at exactly the wrong time.

A smaller contractor running a handful of cost-reimbursement contracts can sometimes manage with a controller-leaning bookkeeper trained specifically on DCAA requirements, paired with fractional CFO input on contract strategy. Once the company is managing a genuinely mixed portfolio of contract types across multiple agencies, with an active incurred cost submission and rate proposal cycle every year, that complexity usually justifies a dedicated in-house controller with real government contract accounting credentials.

Contractors that team with other firms as prime or sub on a given award need to track flow-down cost accounting standards and billing terms accurately for every teaming relationship, since a prime contractor is ultimately accountable to the government for a subcontractor's compliance as well as its own. A controller should maintain clean documentation of every teaming agreement's cost and billing terms, and a fractional CFO evaluating which contracts to pursue should weigh the added administrative burden of complex teaming arrangements against the revenue and past-performance credit they bring.