Solicitor trust accounting is the discipline of looking after money that is not yours. For a law firm in England and Wales that means client money: completion funds, damages and settlements, money on account of costs and disbursements, court and stakeholder funds, and genuine trustee or executor money the firm holds as an office-holder. The rules that govern it are the SRA Accounts Rules 2019, in force since 25 November 2019, and getting them wrong is one of the fastest routes to regulatory action.

This guide is the practical version: how the client account works, how the three-way reconciliation cycle keeps you safe, what your ledgers and controls have to do, where the COFA sits, how to choose software, and the everyday pitfalls that turn into breaches. Where a single rule deserves its own deep dive, this page links the detailed sibling guide rather than repeating it.

What Solicitor Trust Accounting Actually Covers

In the SRA's own language there is no "trust account": the regulated terms are client money and the client account. "Trust accounting" is the search-and-practice term for the same job, plus the narrower case where the firm genuinely acts as a trustee or executor and holds money in that capacity. Either way the core obligation is identical: money that belongs to a client or a third party is held separately from the firm's own funds and returned to the right person when it is due.

Client money (Rule 2.1) is money the firm holds or receives relating to regulated services, on behalf of a third party, in its capacity as a trustee or office-holder, or in respect of unpaid fees and disbursements before a bill is delivered. It is not the firm's income. The firm's own fees, once properly billed, are office money and belong in the business account. The full definition, with the edge cases, is set out in our companion guide to what counts as client money for UK solicitors.

The Client Account: Rules 3 and 4

Client money lives in a client account (Rule 3): a separate account at a bank or building society branch in England and Wales, with a name that includes the firm's name and the word "client" so the funds are identifiable as client money. Most firms run a general client account for routine matters and open separate designated client accounts where a specific matter calls for ring-fenced funds.

Two rules sit underneath this and are the ones that catch firms out:

  • Keep it separate (Rule 4). Client money must be kept separate from the firm's own money. There is no "temporary" exception for parking client funds in the office account, even for a day. Where client and office money arrive together, the client element must reach the client account without delay.
  • No banking facilities (Rule 3.3). The client account must not be used to provide banking facilities. Every payment in, transfer, or withdrawal has to relate to a regulated service the firm is actually delivering for that client. Running money through the client account with no underlying legal work, however well-intentioned, is a breach the SRA treats very seriously.

Client money must be returned promptly once there is no longer a proper reason to hold it (Rule 2.5). Residual balances left sitting on the ledger long after a matter has closed are a recurring source of findings, so a routine to identify and return them is part of good housekeeping.

The Backbone: Three-Way Reconciliation Every Five Weeks

Reconciliation is the single most important control in trust accounting, and Rule 8.3 sets the standard: the client account must be reconciled at least every five weeks. It is a three-way comparison, and all three figures must agree:

  1. The client account bank statement balance.
  2. The firm's cash book (the running record of client account receipts and payments).
  3. The total of every individual client ledger balance added together.

If the three do not match, money is unaccounted for, mis-allocated, or recorded against the wrong matter, and the difference has to be found and corrected rather than carried forward. The statement of the reconciliation must be signed off by the COFA or a manager, which makes the check a documented, accountable event rather than a quiet desk task. A common, avoidable failing is letting an unexplained reconciling difference roll from one period to the next. It should be investigated and cleared each cycle.

Five weeks is the outer limit, not a target. Many firms reconcile monthly so the cycle never drifts past the rule, and so that errors surface while they are still small and traceable. The mechanics, the worked example, and the sign-off detail are covered in our dedicated guide to solicitor client account reconciliation.

Client Ledgers and Daily Controls

The reconciliation only works if the underlying records do. Each matter needs its own client ledger showing every receipt and payment of client money for that client, so that at any moment you can state exactly how much of the pooled client account belongs to whom. The daily controls that keep those ledgers honest are straightforward but unforgiving:

On receipt. Record the source, amount, matter, and any condition attached, allocate it to the correct client ledger, and bank it into the client account promptly. Money received outside banking hours is banked on the next working day.

On payment out. Pay only on proper authority (client instruction, court order, or statutory requirement) and only against cleared funds held for that matter. A client ledger must never go overdrawn: paying out more than a matter holds spends another client's money and creates a shortfall that has to be replaced from the firm's own funds immediately.

On transfer to office. Money only moves from client to business account once it has genuinely become office money, which usually means a bill has been delivered and the transfer is for the billed amount on that matter. Transferring before the bill, or for the wrong matter, is a classic timing breach.

Consider an anonymised conveyancing example. A firm receives completion funds for a purchase: the whole sum is client money and goes straight to the client account, allocated to that matter's ledger. The firm cannot move its fee to the office account until it has delivered a bill, and even then only the billed amount, leaving the balance held for the client. Get the sequence right and the ledger reconciles; get it wrong and the firm has either taken its fee early or left a phantom balance behind.

Interest on Client Money: Rule 7

Where the firm holds client money, Rule 7 requires it to account to the client (or relevant third party) for a fair sum of interest. "Fair" is judged by the amount held and how long it is held, and the firm should have a written interest policy that explains its approach. This is a fairness duty, not a fixed rate, and it is separate from the VAT and tax treatment of the firm's own income. Our guide to handling client money interest under SRA Rule 7 works through a sensible policy.

The COFA and the Compliance Spine

Every SRA-regulated firm appoints a COFA (Compliance Officer for Finance and Administration), who carries primary responsibility for the firm's compliance with the Accounts Rules. In practice the COFA owns the reconciliation sign-off, monitors exception reports (old balances, overdrawn ledgers, unusual transactions), and decides when a problem has to be recorded or reported. The role is best supported by a routine monthly review rather than a year-end scramble. The full duties are set out in our guide to the COFA's responsibilities for UK law firms.

The Accountant's Report and the Rule 12 Exemption

A firm that has held client money during its accounting period normally has to obtain an accountant's report (Rule 12), prepared by an independent reporting accountant within six months of the period end and delivered to the SRA only where it is qualified. There are two routes to exemption under Rule 12.2:

  • All the client money held stayed within an average of £10,000 and a maximum of £250,000 across the period; or
  • The only client money held was money received from the Legal Aid Agency.

The exemption removes the report, not the rules: an exempt firm still has to keep proper records, reconcile every five weeks, and comply with everything else. The exact test, with how the average and maximum are measured, is in our guide to the SRA accountant's report exemption thresholds.

Choosing Trust Accounting Software

Modern firms run client money through legal accounting or practice management software rather than a spreadsheet, and for good reason: volume makes manual tracking unsafe. The features that matter for compliance are the ones that mirror the rules. Look for:

  • Strict separation of client and office ledgers, with a hard block on overdrawing a client ledger.
  • A built-in three-way reconciliation tool (bank statement, cash book, ledger total) with a dated, signed audit trail.
  • Exception and aged-balance reporting, so residual and dormant balances surface automatically.
  • Bank-feed or statement import to reduce keying errors, with the reconciliation still reviewed by a person.
  • A clear record of authorities and bills behind every client-to-office transfer.

Software reduces error; it does not remove responsibility. The controls, the monthly review, and staff training are what keep the system honest. A tool that reconciles automatically is only as reliable as the allocations fed into it.

Records and Retention

The Accounts Rules require accurate, contemporaneous records of all client money dealings, retained for at least six years. In practice that means the cash book, the individual client ledgers, the periodic reconciliation statements, bank statements, and the bills and authorities behind transfers. Digital records are acceptable provided there is a reliable backup regime; many firms keep both digital and key paper copies.

The Common Pitfalls

Most breaches are not exotic. They cluster around a handful of recurring failures:

  • Mixing money: paying an office cost from the client account, or leaving client money in the business account "for now".
  • Overdrawn client ledgers: paying out more for a matter than it holds, spending another client's money in the process.
  • Premature transfers: moving the firm's fee to office before a bill is delivered, or for the wrong matter.
  • Reconciliation drift: letting the five-week cycle slip, or carrying an unexplained difference forward instead of clearing it.
  • Banking-facility breaches: passing funds through the client account with no underlying legal service (Rule 3.3).
  • Residual balances: failing to return small balances promptly once the matter is finished (Rule 2.5).
  • Interest: holding sizeable balances without a fair-interest policy under Rule 7.

For an anonymised cautionary case: a firm under cash-flow pressure used client account funds to meet a supplier cost, intending to replace them. That is a shortfall the moment it happens, a clear breach regardless of intent, and the firm had to make good the client account from its own money and deal with the regulatory consequences. The lesson is blunt: client money is never a short-term liquidity source. A fuller list of the breaches that trigger SRA attention is in our guide to the SRA Accounts Rules explained for UK solicitors.

When Something Goes Wrong

If you find a shortfall or a serious breach, act at once. Correct any shortfall immediately, using the firm's own money where necessary, and restore the client ledger. Investigate how it happened and tighten the procedure that allowed it. Document what you found and what you did. Consider whether your professional indemnity insurers should be notified, and assess, through the COFA, whether the matter needs to be reported to the SRA. The regulator takes a far dimmer view of a breach that was concealed or left to fester than of one that was caught, corrected, and reported promptly. Where the position is unclear, take specialist advice quickly: client money problems escalate fast.

Getting It Right From the Start

Solid trust accounting is not complicated, but it is unforgiving of drift. The firms that stay clear of trouble do the same few things well: they keep client money rigorously separate, they reconcile three ways at least every five weeks with the COFA signing off, they never let a client ledger go overdrawn, and they return money promptly when its job is done. Build those habits into the software, the monthly review, and the team's training, and compliance becomes the by-product of a system that works rather than an annual panic.

For specialist support with setting up client account systems, training staff, or preparing for the accountant's report, see our services page or contact us directly.