Fixed fees at the firm: how to quote without giving hours away

Clients like fixed fees because they shift the risk to the lawyer. The lawyer can have good reasons to offer one for the same reason: if the estimate is right, they charge for value rather than time, and efficiency works in their favour. The problem is that a badly calculated fixed fee turns the firm into the client's free insurer. Quoting a lump sum without giving hours away takes method, not intuition.

Break it down before adding it up

The original sin is quoting the matter as a whole. The right approach starts by breaking it into phases (analysis, strategy, negotiation, drafting, possible litigation) and estimating hours per phase under three scenarios: the expected one, the optimistic one and the one that wakes you up at night. The price is built on the expected scenario corrected by an explicit risk premium, usually between 15% and 25% depending on the matter's uncertainty. If the client will only budget one phase, all the better: staged fixed fees are easier to defend than global ones.

It is also worth documenting the estimate internally. Not for the client, but for yourself: six months from now, when the matter has drifted, you will need to know what you assumed in order to renegotiate with data rather than feelings.

Delimit the scope as if it were a penalty clause

Most fixed fees that go wrong do not fail on the maths, they fail on the perimeter. The engagement letter must define what the price includes with the same precision as an insurance policy exclusion: number of contract drafts, meetings attended, specific procedural filings, and above all what is left out. The two sentences that save a firm the most money are "any work not expressly described will be quoted separately" and the review clause triggered when the factual assumptions behind the estimate change.

Do not compete against your own hourly rate

A fixed fee arrived at by multiplying expected hours by your rate and then applying a discount to win the work is a trap: the client gets certainty and you take on the risk without charging the premium. A fixed fee should be anchored to the value for the client and to opportunity cost, not to a discounted hourly rate. The ethics rules on fees and bar associations' guideline criteria work as a market reference, not as a ceiling.

Tools that improve estimation

Firms that quote lump sums well have data: they track time even when billing fixed fees, precisely to calibrate future estimates. Without that discipline, every quote is a new blind bet. Current technology also makes contract and document review faster, which cuts the real cost of analysis phases; our guide to AI-assisted contract review with human control explains how to integrate it safely.

When to say no to a fixed fee

Some matters do not admit a reasonable estimate: litigation with uncertain evidentiary scope, transactions whose documentation has not been seen, matters with an unpredictable counterparty. In those cases, commercial honesty means offering a closed first phase (the diagnosis) and quoting the rest once the matter can be measured. A client who refuses any preliminary phase and demands a global price for the unmeasurable is asking you to insure them for free: the professional answer is no.

To round out the economics of a solo practice, see our guides on collecting fees and dealing with late payment, deductible allowances and mileage and what car you can deduct as self-employed.