Never discount a retainer below your utilisation

Retainer vs Project Calculator

A retainer buys guaranteed hours at a lower rate. At 64 per cent utilisation, 80 per cent of your rate is worth taking. Below 64 per cent it is not.

Free tool

Retainer vs Project Calculator

The most you should discount a retainer is exactly your utilisation on that capacity. Below that you are better off keeping the hours free.

The offer
£
£
%
From the Utilisation and Time Log.
The retainer is worth this much more a year

-

On the retainer
Selling them ad hoc
Discounted rate as a share of full
Lowest rate you should accept
as a discount off your full rate

Three things worth knowing

The test is whether the discounted rate divided by your full rate beats your utilisation. At 64 per cent utilisation a retainer at 80 per cent of your rate is comfortably worth it.

The busier you are, the less discount a retainer is worth. At full utilisation any discount is simply a lower rate.

This does not price the two things a retainer really buys: smoother cash flow, and a client who is easier to keep.

The same test, in a workbook

With the year either way and the floor rate.

Download the workbook Free Excel workbook, no signup. Current for 2026/27.

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