Accounting for Solicitors: How Law Firm Accounts Actually Differ

Law firm accounting is a specialism, and the reason is structural rather than technical. A solicitor's practice runs two separate sets of money, holds funds that are not its own, and reports on that holding to a regulator. Almost nothing else in ordinary commercial accounting works that way.

This guide is for accountants, bookkeepers and practice staff meeting law firm accounts for the first time. It covers what is different about them rather than restating the rules themselves, which are covered in our guide to the SRA Accounts Rules and client money reconciliation.

The thing that makes it different: two accounts, not one

A law firm operates a client account and an office account (also called the business account), and they are not interchangeable.

Money in the client account belongs to clients and third parties. The firm holds it; it does not own it. Money in the office account is the firm's own, and is what pays salaries, rent and everything else.

Every bookkeeping decision in a law firm starts with the same question: whose money is this? That question has no equivalent in most commercial bookkeeping, where all the money in the business belongs to the business.

The practical consequence is a dual ledger. Each client matter has a client-side balance and an office-side balance, and both have to be maintained, reconciled and reported on separately. A single transaction can touch both.

Disbursements, and why they cause most of the errors

A disbursement is a payment the firm makes on a client's behalf — a court fee, a search fee, counsel's fee, an expert's invoice.

Two questions determine the treatment, and getting either wrong creates problems that surface much later:

Which account does it come from? If there is client money held for that matter and the disbursement is properly payable from it, it may come from the client account. If not, the firm funds it from office and recovers it on billing. The decision is not a matter of convenience.

Is the firm acting as agent or as principal? This determines the VAT treatment. A payment made as agent, where the supply is to the client rather than to the firm, sits outside the scope of the firm's VAT. A payment where the firm receives the supply is the firm's own cost, recharged with VAT. The same category of expense can fall either way depending on who the supplier contracted with.

This is the single most common area where general-practice bookkeeping habits produce wrong answers in a law firm.

Unbilled time is an asset that is not cash

Law firms carry significant work in progress: time recorded on matters that has not yet been billed. It appears in the accounts, it affects reported profit, and none of it is money in the bank.

Three timing gaps stack up in sequence: work is done, then billed, then paid. The distance between the first and last is what the profession calls lock-up, and it is the reason profitable law firms run out of cash.

Our guide to law firm finance and matter profitability covers lock-up and realisation rates from the fee earner's side.

The reporting obligation ordinary businesses do not have

A firm holding client money is subject to an accountant's report requirement. That is a report on the firm's compliance with the client money rules, prepared by a qualified accountant, and it is separate from and additional to statutory accounts.

This has two consequences for anyone doing the books. The records have to be maintained to a standard that will survive external examination against a specific rulebook, not just to a standard that produces accurate statutory accounts. And the firm's compliance officer for finance and administration carries personal regulatory responsibility for that position.

The detail of when a report must be obtained and when it must be delivered is in the Accounts Rules guide, and the distinction between those two matters more than it first appears.

Reconciliation is a regulated activity, not housekeeping

In ordinary bookkeeping a bank reconciliation is good practice. In a law firm, reconciling the client account is a rule-driven obligation with a defined frequency and a required form, and failures are reportable.

The reconciliation is also three-way rather than two-way: the bank statement, the cash book, and the total of individual client ledger balances must all agree. A two-way reconciliation that balances can still conceal a problem on the client ledger side.

What this means for an accountant taking on a law firm client

Four practical points follow.

The rulebook is the SRA's, not just the accounting standards. Technical accounting competence is necessary and not sufficient. The compliance framework sits alongside it.

Residual client balances are a live risk. Small amounts left on client ledgers after matters conclude accumulate, and clearing them properly is governed rather than discretionary.

The office ledger alone tells you very little. Profitability, cash position and regulatory exposure all require the client side too.

Specialist software is the norm. Legal practice management systems maintain the dual ledger natively. General accounting packages can be made to work, but the matter-level client ledger is the part that general software handles least well.

Is it worth the specialism?

For an accountant, law firms are a defined and durable client sector with a compliance requirement that creates recurring work and a barrier to casual competition. The rules change rarely, the client base is stable, and the reporting obligation is annual.

The cost of entry is learning a rulebook that has no analogue elsewhere. The return is that competitors who have not learned it cannot serve the sector properly, which is unusual in general practice work.

If you are approaching it from the legal side rather than the accounting side, our guide to reading financial statements for lawyers covers the ground from the opposite direction.