Retainer, trust account, billing increment. Reading a legal fee agreement properly
title:Retainer, trust account, billing increment. Reading a legal fee agreement properlyauthor:Beatrix Stapletonpublished:2026-07-15section:Law & Legalwords:882read:4 min
The words in a fee agreement have precise meanings that differ from their everyday ones, and three of them determine what a matter will cost.
Retainer is used to mean at least three different things, and the difference between them is money. Understanding which one a fee agreement is describing takes a minute and settles most of the confusion people carry into a legal engagement.
The three retainers
An advance fee deposit, which is the most common. You pay a sum up front; it goes into a client trust account; the attorney bills against it as work is done and transfers earned amounts out.
Unearned money at the end is returned. This is a deposit, not a payment, and treating it as spent from day one is the wrong mental model.
A true retainer, paid to secure availability rather than to buy work. Less common in individual matters and it is generally earned when paid, meaning it is not refundable, because what you bought was the reservation.
A flat fee paid in advance, which is the price of a defined piece of work paid before the work happens. Whether it sits in trust until earned depends on the state and on how the agreement characterizes it.
The agreement should say which of these it is and what happens to unearned funds. Where it does not, ask, and get the answer in writing.
What a trust account does
Client funds are held separately from the firm's own money, in an account subject to specific professional rules. The attorney may not use those funds until they are earned, and moving money out requires that the work has been done and, typically, that you have received a bill showing it.
Two practical consequences. You are entitled to an accounting of what has been drawn and why, and asking for one is routine rather than confrontational. And if the engagement ends, unearned funds come back, which is an obligation rather than a courtesy.
Trust account rules are enforced by state bar authorities and are among the most strictly policed obligations in the profession. That is useful to know, because it means the question of where your deposit sits has a clear answer.
The billing increment, which quietly decides the total
Attorneys record time in fractions of an hour, and the size of the fraction matters more on some matters than others. Where the increment is a tenth of an hour, a two-minute email is recorded as six minutes. Where it is a quarter of an hour, the same email is fifteen.
On a matter made of a few long tasks, this barely registers. On a matter made of many short interactions, which describes most ongoing disputes, it is a significant share of the bill. Ask what the increment is, and ask whether there is a minimum charge per task.
The corresponding client-side habit is simple and effective: batch your questions. Five separate emails across a week cost five recorded entries. One email with five numbered questions costs one, and usually gets a better answer because the attorney can see the whole picture.
The other lines on a legal bill
Check that timekeeper rates are stated separately for partner, associate and paralegal work, since who does what drives the total. Costs and disbursements, meaning filing fees, service, records, experts and travel, are passed through and should be identifiable as such.
Administrative charges for copying and postage are increasingly folded into rates rather than billed, and either approach is fine as long as it is stated. Ask whether third-party charges are marked up and whether you approve them before they are incurred. And find the clause about interest on unpaid balances, which exists in most agreements and is read by almost nobody.
Ask for itemized bills with narratives describing what was done, rather than a single figure. A bill that reads reviewed correspondence, 2.4 hours cannot be evaluated. One that lists the correspondence can.
Reading the agreement's less obvious clauses
Three provisions are worth locating before signing.
Scope. What matter is covered, and what is not. An agreement for a specific dispute does not cover the related matter that emerges later, and the second matter may need its own engagement and its own deposit.
Replenishment. Many agreements require the deposit to be topped up when it falls below a threshold. This is normal and it is worth knowing about before the request arrives, because it usually arrives at a busy moment in the matter.
Withdrawal and termination. The circumstances in which either side may end the engagement, what you owe at that point, and what happens to the file. You are generally entitled to your file, and knowing that in advance avoids an unnecessary argument.
Keeping the cost down without undermining the work
Four habits do most of it. Arrive organized, since time spent assembling your documents is billed at a professional rate. Batch communications. Do the tasks you can do yourself, such as collecting records, when the attorney says they are suitable.
And answer questions promptly, because a matter that stalls waiting on a client is a matter that gets re-read each time it restarts, and re-reading is billable.
Then read the first bill carefully and raise anything unclear immediately. Questions about a bill are ordinary, they are much easier to resolve in the first month than in the sixth, and the answer usually clarifies how the matter is actually being handled.