When to take a client retainer and how to record it in the matter file
Taking a retainer is not a sign of distrust — it is a practice management decision that protects both the firm and the matter. Asking for one at the wrong moment, or recording it badly, creates billing confusion that can be hard to untangle by the time the matter closes.
When it makes sense to take a retainer
The clearest rule: before work begins. Not after the first documents arrive, not once the matter is underway — at the point when the client gives instructions and the professional relationship starts.
Certain matters make a retainer particularly important:
- Matters with an uncertain timeline: when there is no fixed completion date — a protracted negotiation, an estate with beneficiaries in multiple jurisdictions, a dispute — the risk of fees sitting unpaid until the end is real. An upfront retainer gives the matter an economic anchor from day one.
- New clients with no billing history at the firm: this is not a question of character. With an existing client, the payment history speaks for itself. With a new one, the retainer sets expectations on both sides from the outset.
- Matters that will generate disbursements: if the matter will involve third-party costs — Land Registry fees, search fees, expert reports — it is worth separating a disbursement float from the fee retainer from the start. Keeping them in one pot makes the ledger harder to close cleanly.
For short, tightly scoped matters — a single document review, a one-off piece of advice — a retainer may not be necessary. The decision depends on the scope of work and the risk profile of the matter.
How to record it in the matter file
Taking money in without recording it properly creates an accounting problem: is the sum received a payment on account of fees already earned, or an advance against future costs? Confusion between those two categories produces errors when the final bill is drawn up.
What the matter file needs:
1. The client care letter or engagement terms. Before any money changes hands, the client should have confirmed in writing the scope of the matter, the fee estimate, and the retainer amount. It does not have to be a long formal contract. A short letter that covers those three points is enough.
2. A record of the receipt. Log the retainer on the matter file with the date, amount, payment method, and matter reference. If the practice uses a case management system, this is the moment to open the matter ledger and enter the first movement.
3. The nature of the money received. Note whether it is:
- Payment on account of fees: the client is pre-paying against work that has been estimated. It will be applied against the final invoice.
- Disbursement float: the client is advancing money to cover third-party costs the firm will pay on their behalf. This is not a fee — it is client money the firm holds and disburses. In most jurisdictions, it is held in a separate client account.
Mixing these two in the same matter ledger is one of the most common and most disruptive errors when closing a matter.
When to apply the retainer and when to return it
If the retainer was taken as payment on account, it is applied on the final bill: total fees earned minus the retainer received gives the balance due at completion. If the matter settles for less than the retainer, the balance is returned to the client.
If the money was a disbursement float, application is tied to actual costs incurred. Whatever was not spent goes back. This is why every disbursement needs a corresponding entry on the matter file: date, description, amount, and supporting document. Without that log, reconciling the float at completion becomes a reconstruction exercise — and those tend to produce disputes.
A common mistake: not updating the ledger as the matter runs
On longer matters, the financial record tends to stall after the initial entry. The retainer is logged. Then weeks pass, disbursements happen, and nothing is entered. By the time the fee earner prepares the final bill, the ledger needs to be rebuilt from scratch — invoices, bank statements, and memory.
The solution is not complex accounting: it is entering each movement on the matter file when it happens. One line with the date, description, and amount is enough to keep the close clean.
How to present it to the client
A retainer request lands better when it is framed as part of the process explanation, not as a separate condition attached at the end. When a solicitor or conveyancer walks a new client through what will happen — the steps, the timeline, the likely costs — the retainer fits naturally into that conversation.
"To get the matter started and cover the initial searches and disbursements, I will need a payment on account. I will account to you for it as the matter progresses and return anything unused at completion." Most clients find that straightforward.
If a client asks why money is due before any work has visibly happened, the honest answer is usually the right one: costs in a matter start before fees are invoiced, and a retainer allows the firm to act without interruption.
At VerifyAct we build tools to help practices stay organised and error-free. Get in touch if that sounds useful.