Ask a new government contractor what it costs to employ someone and the answer is usually a salary. Ask an experienced one and the answer is a wrap rate, a number that includes the salary and everything else the business spends to support that person. The difference between the two answers is indirect cost, and learning to organize and price it is one of the first financial skills federal work demands.
Direct versus indirect
A direct cost can be identified with a single contract: the hours an engineer charges to it, the materials bought for it, the travel taken for it. An indirect cost benefits more than one contract or the business as a whole: rent, utilities, accounting staff, the president’s salary, software licenses, payroll taxes, health insurance. The government expects contractors to treat similar costs consistently, charging a cost directly when it can be tied to one contract and indirectly when it cannot, and never both ways.
The three common pools
Indirect costs are grouped into pools, and each pool is spread across contracts using an allocation base. Most small contractors use three:
- Fringe benefits. Paid leave, payroll taxes, health and retirement benefits and similar costs of employing people. Usually allocated as a percentage of direct labor dollars or total labor.
- Overhead. Costs of supporting the work that are not fringe: facility costs for project staff, supervision, project-related training, equipment. Allocated over direct labor, sometimes with separate pools for on-site and off-site work because the cost of supporting each differs.
- General and administrative, or G&A. Costs of running the company as a whole: executive salaries, accounting, legal, business development, corporate insurance. Allocated over total cost input, meaning all direct costs plus fringe and overhead, or sometimes over value added.
Each rate is the pool divided by its base. If overhead costs are a certain amount and direct labor is another, the overhead rate is their ratio, and it is applied to every direct labor dollar on every contract.
From rates to a wrap rate
Stacking the rates on a direct labor rate produces the fully burdened, or wrap, rate. Fringe is applied to the base labor, overhead to labor plus fringe, G&A to that total, and profit on top. The result is the hourly rate that appears in a time-and-materials proposal or underlies a fixed price. Understanding the stack lets you see how a change in any pool, such as new office space or a new hire in accounting, moves every rate you quote.
Provisional and final rates
Rates are estimates until the year ends. On cost-reimbursement contracts, contractors bill using provisional rates approved for the year, then submit an incurred cost proposal after the year closes so that final rates can be established and billings adjusted. Firm-fixed-price and time-and-materials contracts do not adjust, which means a rate estimate that proved too low is simply lost margin. Tracking actual rates against estimates during the year, and understanding why they differ, is how contractors avoid surprises.
Why structure matters to the government
Contracting officers and auditors care about indirect rates because they want assurance that costs are allocated fairly across contracts and that unallowable costs are kept out of the pools. An accounting system that segregates direct and indirect costs, accumulates them by pool, excludes unallowable items and can produce the supporting data is a basic requirement for cost-type work and a mark of maturity for any contractor.
A contractor beginning this journey does not need an elaborate system, but it does need a consistent one, chosen deliberately and documented. An accountant who knows government contracting can help design the pools and bases to fit the business and its contract mix. The investment pays off quickly, in proposals that are priced realistically, in invoices that survive review and in a clear view of what each hour of work actually costs.