Glossary · Commercials

What is Gross margin 

Also called: GM, staffing gross margin.

Definition

The share of the bill rate left after paying the contractor and their employment burden. It is the money the agency actually runs on.

Applies to: US and UK · Reviewed by James Doyle

In practice

Gross margin is measured against the bill rate, not the pay rate. Bill $45.00, pay $30.00, burden $3.75, and you keep $11.25 — a 25% gross margin. Everything else in the business comes out of that $11.25: consultant salaries, funding cost, software, office, profit.

Contract staffing typically runs 18% to 30%. Below 20% the model rarely funds its own working capital, because the cash tied up in the payroll cycle grows faster than the margin covering it. Above 30% usually means a genuinely scarce skill set rather than a better negotiator.

Worked example

Bill $45.00 − pay $30.00 − burden $3.75 = $11.25 → 25% gross margin.

Common mistake

Quoting margin to a client who is thinking in markup. A 25% margin is roughly a 50% markup — the same deal sounds twice as expensive if you pick the wrong word.

Put the theory to work.

Model your rates, costs and funding with the calculators built on our own 2025 data.