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OHP (overheads and profit): definition and example

The amount added to the cost of work to cover running your business and a profit, usually as a percentage.

By Jack Butler-Kettle · Updated

Guidance for England and Wales. Check the contract, amendments and facts that apply to your job.

What it means in practice

Read this alongside NRM 2: Detailed measurement for building works.

Overheads and profit describe allowances within a price, rather than a universal percentage payable on every claim. Rates may already contain these allowances. The contract's valuation rules determine whether a separate addition is appropriate and what it applies to.

Identify what is already included before adding a mark-up. Variation recovery can help present a calculation without overlapping allowances.

Worked example

The facts

A variation has £2,000 of eligible direct costs and an assumed agreed 10% overhead-and-profit addition.

What happens

  1. The subcontractor confirms that the direct costs do not already include that addition.

  2. It calculates £200 separately and records the source of the 10% rate.

What this shows

The illustrative total is £2,200, but the same percentage is not automatically appropriate for another contract or claim.

Sources

  1. NRM 2: Detailed measurement for building works, UK 2nd edition, October 2021 (reissued October 2022 as RICS practice information). RICS.