A quote with a range, a cap and a rule for extra hours lets a client approve work before its final scope is known. This guide shows the steps, the legal basis in the UK and EU, and the wording to use when the cap is passed.
An estimate is a rough, non-binding figure, a quote is a fixed price with an expiry date, and an invoice asks for payment. Here is what each one must contain and how long a quote should stand.