Wrap Rate

A wrap rate is the multiplier that converts direct hourly labor cost into a fully burdened billing rate. The multiplier covers fringe benefits, overhead, general and administrative expense, and fee. If an engineer costs $50 an hour in salary and you bill $110, your wrap rate is 2.2.

Put your own figures through the free wrap rate calculator. It shows each burden landing on the layer beneath it, prints the formula so you can check the arithmetic by hand, and lets you compare the two G&A allocation bases described below. No sign-up, nothing stored.

How the burdens stack

The burdens compound. They do not simply add together. The order of the layers matters.

1. Fringe applies to direct labor. It covers payroll taxes, health insurance, paid leave and retirement contributions.
2. Overhead applies to labor that already carries fringe. It covers the cost to operate the unit that produces the work: supervision, facilities, tools and indirect engineering support.
3. G&A (general and administrative) applies to the total cost input. It covers company-level cost: executive, finance, contracts, business development and legal.
4. Fee or profit applies last, after total cost.

Each layer multiplies the layer before it. Therefore a small change in a lower-tier rate moves the final number more than most people expect.

Total Cost Input compared to Value Added Base — the allocation base question

A contractor must apply G&A to a base. The choice of base is a real accounting decision:

• Total Cost Input (TCI) applies G&A to all costs, including materials and subcontracts.
• Value Added Base (VAB) excludes materials and subcontracts from the G&A base.

On a material-heavy or subcontract-heavy program, TCI puts a large G&A charge on pass-through dollars. That charge can make your price uncompetitive and can attract scrutiny. VAB avoids that result. VAB also produces a higher G&A rate on the labor that remains. You must apply your chosen base consistently, and you must defend it. You cannot select the favorable base contract by contract.

The base does not change the labor multiplier, because direct labor sits inside both bases. What it changes is the price of the pass-through dollars beside that labor. The calculator sets both bases side by side on the same figures, so the size of that difference on your own program is a number rather than an argument.

How FAR Part 31 applies

FAR Part 31 governs which costs a contractor may recover on a government contract. A contractor cannot put an unallowable cost in an indirect pool. Common unallowable categories carry these cost principles:

• Entertainment — FAR 31.205-14.
• Alcoholic beverages — FAR 31.205-51.
• Bad debts — FAR 31.205-3.
• Contributions and donations — FAR 31.205-8.
• Fines and penalties — FAR 31.205-15.
• Lobbying and certain political activity — FAR 31.205-22.

The rule goes further than a simple exclusion from a bill. FAR 31.201-6 requires the contractor to identify each unallowable cost and to remove it from any billing, claim or proposal. The same rule requires the contractor to allocate the unallowable cost its share of indirect burden. The unallowable work therefore carries its own weight, and allowable work does not subsidize it.

The mistake that makes this term matter

Most small contractors get their first wrap rate from somewhere else. A number gets quoted at a teaming meeting, or a multiplier from a former employer gets carried over, and it becomes the house rate because it produced a price that looked about right. Nobody ever traces it back to a pool and a base, because for a while nobody has to.

The bill for that arrives later, and usually all at once. The company grows, adds a second site, picks up work that is heavy on subcontractors, and keeps using the one number. Then an audit, an incurred cost submission, or a cost realism question asks where the rate came from, and the honest answer is that nobody knows. Rebuilding an indirect structure while a proposal is due is the expensive way to learn what a wrap rate is.

What goes wrong with wrap rates in practice

One blended rate goes everywhere. Different sites, different contract types, and on-site or off-site work often justify different overhead pools. A single company-wide number is simple. It is also frequently indefensible.

Nobody trues up the rates. A contractor bids indirect rates provisionally and settles them later against actuals. A company that bids optimistic rates and then runs above them absorbs the difference. A company that bids high loses work it could win.

Unallowables sit in the pool. The holiday party, the trade association lobbying dues, the settled penalty. Auditors search for exactly these items. A finding rarely stays confined to the line item.

A wrap rate becomes a competitive metric. A lower wrap rate is not automatically better. It can indicate thin infrastructure, an unusual base, or cost deferred to a place where it will resurface. What matters is the resulting price, and whether the rate structure survives review.

What to do

1. Build the rate structure from an accounting system that separates direct cost from indirect cost.
2. Confirm that the same system separates allowable cost from unallowable cost.
3. Keep the records that show how you derived each pool and each base.
4. Select the G&A base deliberately, and record the reason.
5. Compare your provisional rates against actual results, and correct the rates before the next bid.
6. Examine your indirect structure before a proposal deadline, not during one.

What a wrap rate is not

A wrap rate is not a profit margin. Fee is only the last layer of the rate.

A wrap rate is also not a substitute for a cost proposal. A wrap rate multiplied by hours produces a price. It does not explain the source of the hours. A basis of estimate does that.

Silas™ computes burdened rates from a company's own fringe, overhead, G&A and fee inputs and carries them into the cost estimate.