What Is a Wrap Rate in Government Contracting?

A wrap rate in government contracting is the single multiplier a contractor applies to an employee’s base hourly wage to produce the fully loaded hourly rate billed to the government. It bundles every indirect cost of employment with profit into one number, and it usually lands between 1.5 and 3.0 depending on the contractor’s cost structure and the type of contract. If an engineer earns $50 an hour and the wrap rate is 2.45, the government sees a billing rate of $122.50 an hour. The spread covers payroll taxes, benefits, facilities, administration, and margin.

The number carries unusual weight in federal work because the Federal Acquisition Regulation requires contractors to show how every component of a billing rate was built. You can’t pick a round number that feels right. Each piece of the multiplier has to trace back to documented costs the government can audit. Set it too low and the contract bleeds money; set it too high and a competitor underbids you.

The Three Indirect Cost Pools Behind the Multiplier

Federal cost accounting separates indirect costs into distinct pools rather than lumping them together. The standard structure uses three: fringe benefits, overhead, and general and administrative expenses. Each pool uses a different allocation base, which is why the math isn’t just adding three percentages.

Fringe Benefits

Fringe captures costs tied directly to employing a person beyond salary. The big items are the employer’s share of FICA, FUTA, and SUTA, plus health, dental, and vision premiums, 401(k) matches, workers’ compensation, life insurance, and paid time off (vacation, sick leave, and holidays). For most professional services contractors the fringe rate falls between 25% and 45% of direct labor, with the spread driven mostly by health plan generosity and PTO policy. Fringe is applied directly to the base labor cost and becomes the first layer on every direct labor dollar.

Overhead

Overhead is the cost of the operational environment where direct work happens. Rent and utilities for project space, on-site supervisors, internal IT, quality assurance staff whose time isn’t billed to a client, software licenses, project equipment depreciation, and office supplies all sit here. Overhead is typically allocated to the fringe-burdened labor base, meaning it’s applied after fringe has already been added. The FAR requires that the base selected distribute costs in proportion to the benefits each contract receives.

General and Administrative Expenses

The G&A pool covers running the business as a whole, independent of any single project. Executive salaries, accounting and HR, legal counsel, corporate rent separate from project facilities, general liability insurance, business development, and audit fees are G&A. Because these costs support every contract, they’re spread across the company’s entire cost base. The G&A rate is applied last, usually to total cost input (direct labor plus fringe plus overhead).

How to Calculate a Wrap Rate

Each pool builds on the previous one, so the calculation is multiplicative. Add the three percentages together and you’ll understate the result badly. Work it with sample rates of 35% fringe, 50% overhead, and 10% G&A against a $50 direct labor rate:

  • Apply fringe to direct labor: $50.00 × 1.35 = $67.50. This covers wages plus payroll taxes, insurance, PTO, and retirement contributions.
  • Apply overhead to fringe-burdened labor: $67.50 × 1.50 = $101.25. This adds facilities, project support staff, and equipment.
  • Apply G&A to total cost input: $101.25 × 1.10 = $111.38. This layers on corporate administration and business development.

At $111.38 the company breaks even on every hour worked. The break-even wrap rate is $111.38 ÷ $50.00 = 2.23, meaning $2.23 of cost for every $1.00 of direct labor before any profit. Add a 10% profit margin on total cost and the billed rate becomes $111.38 × 1.10 = $122.51. Divide by the original $50 and the final wrap rate is 2.45. That number drops into every pricing table in the proposal.

Adjustments That Move the Rate

The textbook calculation assumes one overhead pool, a total cost input base for G&A, and a 40-hour week. Several real-world adjustments shift the multiplier.

On-Site vs. Off-Site Overhead

When employees work at a government facility rather than the contractor’s office, the contractor doesn’t bear the same facility costs. The FAR allows separate cost groupings for off-site locations when a single overhead rate would distribute costs inequitably.1Acquisition.GOV. FAR 31.203 Indirect Costs A contractor might carry a 50% overhead rate for its own facility and 25% for employees sitting at a government site. Split rates keep on-site proposals competitive without under-recovering costs on work performed in your own building.

Uncompensated Overtime

Salaried exempt employees often work beyond 40 hours per week, and those unpaid extra hours lower the effective hourly rate used in proposals. The FAR defines uncompensated overtime as hours worked beyond a 40-hour week without additional pay and requires contractors to disclose it when it’s present in a proposal.2eCFR. 48 CFR 52.237-10 – Identification of Uncompensated Overtime

The adjusted rate is the 40-hour rate times 40 divided by the total proposed hours per week. An employee earning $20 per hour on a 40-hour basis proposed at 45 hours gets an adjusted rate of $17.78 ($20 × 40 ÷ 45). That lower rate flows through the entire wrap rate calculation. Contractors use the adjustment to sharpen pricing, but the proposal must identify all regular and overtime hours by labor category and include a copy of the uncompensated overtime policy.2eCFR. 48 CFR 52.237-10 – Identification of Uncompensated Overtime

The G&A Allocation Base

Not every company should apply G&A to total cost input. Cost Accounting Standard 410 permits three bases: total cost input, value-added cost input, and single element cost input. Total cost input fits labor-dominated structures. For firms passing through heavy subcontract or material costs, it distorts allocation. A contract with $5 million in subcontractor pass-through and $500,000 in direct labor, hit with a 10% G&A rate on the full $5.5 million, carries $550,000 in G&A for relatively little administrative effort. Value-added cost input strips material and subcontract costs out before applying the rate, allocating G&A based on the work the company actually performed.3eCFR. 48 CFR 9904.410-50 – Techniques for Application

Facilities Capital Cost of Money

Companies with meaningful capital tied up in facilities, equipment, or leasehold improvements can recover an added element called facilities capital cost of money (FCCM). Under CAS 414, the contractor computes an FCCM factor for each indirect pool by relating the net book value of facilities capital to that pool’s allocation base.4eCFR. 48 CFR 9904.414-50 – Techniques for Application The addition to the wrap rate is usually under 1%, but it’s one of the few mechanisms that compensates contractors for the cost of capital on assets used for government work. FCCM is not treated as profit and doesn’t count against statutory fee limitations.

Costs You Cannot Load Into the Rate

Not every business expense can go into an indirect pool. The FAR expressly prohibits certain costs from government contracts, and sweeping them into your wrap rate, even accidentally, invites audit findings and penalties. The main unallowable categories:

Your accounting system needs written policies and procedures to flag and exclude these from every indirect pool. The Defense Contract Audit Agency looks for this specifically, and failing to segregate unallowable costs can get your entire accounting system deemed inadequate.

How the Wrap Rate Behaves by Contract Type

The same multiplier plays different roles depending on how the government pays you.

Time-and-Materials

On a T&M contract, the wrap rate is baked into the fixed hourly rate the government pays. The FAR defines the T&M hourly rate as a single number that includes wages, overhead, G&A, and profit.11Acquisition.GOV. FAR 16.601 Time-and-Materials Contracts Once awarded, the rate doesn’t move based on your actuals. Higher real overhead comes out of your margin; lower real overhead stays with you. Getting the wrap rate right at proposal time is the whole game on T&M.

Cost-Plus-Fixed-Fee

Cost-plus-fixed-fee reimburses actual allowable costs incurred, plus a fixed fee negotiated at award that doesn’t move with those costs.12eCFR. 48 CFR 16.306 – Cost-Plus-Fixed-Fee Contracts The wrap rate matters for proposal budgeting and for the government’s realism evaluation, but you bill actuals as they’re incurred and those actuals are audited against FAR allowability rules.

Statutory Profit Caps

You can’t set profit at whatever the market will bear on cost-reimbursement work. Federal law caps the fee on CPFF contracts at 10% of estimated cost for most work and 15% for experimental, developmental, or research contracts, applied to the estimated cost excluding the fee itself.13eCFR. 48 CFR 15.404-4 – Profit A proposed wrap rate carrying an embedded profit above those limits gets negotiated down at award.

Provisional Rates and the Year-End True-Up

Contractors don’t wait for year-end to bill. The contracting officer or auditor sets provisional billing rates at the start of each fiscal year based on recent audits, prior-year experience, or the contractor’s proposed rates.14Acquisition.GOV. FAR Subpart 42.7 – Indirect Cost Rates These are estimates, set as close to the anticipated final rates as possible after excluding unallowable costs. You bill at these rates all year knowing a reconciliation is coming.

After the fiscal year closes, the contractor files a final indirect cost rate proposal, commonly called an incurred cost submission, within six months of fiscal year end.15Defense Contract Audit Agency. Incurred Cost Submissions It shows actual costs, actual allocation bases, and the resulting actual rates. If provisional rates were higher than actuals, you owe money back. If lower, you’re owed more reimbursement. Provisional rates can be revised mid-year by mutual agreement if they’re clearly off target.14Acquisition.GOV. FAR Subpart 42.7 – Indirect Cost Rates

The gap between provisional and final rates is where cash flow surprises live. A company billing well above its actual costs builds a liability it eventually has to repay; one billing too low starves cash flow for months. Experienced contractors watch monthly and request adjustments early.

Accounting System Requirements

None of this works without an accounting system that can track every dollar at the precision the government expects. Before awarding a cost-reimbursement or T&M contract, the government evaluates the contractor’s system using Standard Form 1408.16GSA. Standard Form 1408 – Pre-Award Survey of Prospective Contractor Accounting System The core capabilities:

  • Direct costs must be separated from indirect costs, and indirect costs must accumulate in logical pools (fringe, overhead, G&A) rather than mix together.17Defense Contract Audit Agency. Accounting System Requirements and Pre-Award Audits
  • Direct costs must be identified and accumulated by individual contract, with subsidiary ledgers reconciling to the general ledger.
  • A timekeeping system must identify each employee’s labor by cost objective, and a labor distribution system must charge those hours to the correct accounts.
  • Written policies must identify and exclude unallowable costs from amounts charged to the government.
  • Costs must post at least monthly so interim contract costs come from routine bookkeeping, not special exercises.

A system that fails the SF 1408 review or a later DCAA audit can be rated inadequate, which blocks new cost-type or T&M awards until the deficiencies are corrected. For companies already on contract, an inadequate determination can mean withheld payments or suspended billing. The accounting system is the foundation that makes every wrap rate calculation auditable, and without it the multiplier is just a number on paper.