Accessibility
Fiducia Together logoFiducia Together

Client engagement letter

The document setting out what you will do for a client and on what terms.

Please note: This page explains what a term means. It is general information, not legal, financial, tax or investment advice, and it does not know anything about your business. Before you sign, file or commit to anything, check it with an accountant, a solicitor, or the official guidance we link to.

What it means

An engagement letter defines scope, fees, responsibilities, limitations of liability, duration and termination.

Why it matters

In professional services it is both the contract and the main defence against a claim, because most claims turn on what the client believed was included.

What it looks like in practice

Say what is NOT included as explicitly as what is. Most disputes are about the gap between the client's expectation and the scope.\n\nProfessional bodies often mandate one and publish templates.

What to watch out for

Continuing to act on an old engagement letter as the work changes. Re-issue when the scope moves.

Where to get proper advice

Your professional body's template and a solicitor for the liability cap.

Where to read more

Last reviewed 2026-08-28 by Fiducia Together · Next review due 2027-08-28

Please note: This page explains what a term means. It is general information, not legal, financial, tax or investment advice, and it does not know anything about your business. Before you sign, file or commit to anything, check it with an accountant, a solicitor, or the official guidance we link to.

Accessibility toolkit

Done

Profiles


Text

Text size100%
Off
100%

Colour & contrast


Reading & focus

Saved to this browser for 6 months. Signed in to a Fiducia app? Set it up there instead and it follows you onto any device.

Cookies on this site

We use one cookie to remember your reading and accessibility settings, and one to remember this choice. Neither is used to track you. This site sets no advertising or analytics cookies of its own, and visits are counted on our own server, so nothing follows you off this page. Read our privacy policy.