Lawyer Trust Accounting: A Practical Guide to Client Funds

Lawyer trust accounting is the practice of holding and recording client funds separately from a law firm’s own money. It requires the firm to know how much it holds for each client or matter, document every deposit and withdrawal, and reconcile those records to the trust bank account. Software can help maintain the records, but the firm remains responsible for reviewing them and following the rules that apply where it practices.

If you are evaluating a system for this work, see LeanLaw’s trust accounting workflow. LeanLaw connects client and matter trust records to QuickBooks Online alongside the firm’s billing work; an active QuickBooks Online subscription is required separately.

What is attorney trust accounting for?

A firm may receive money before it has earned a fee or paid an expense on a client’s behalf. That money still belongs to the client until the firm has a proper basis to move or disburse it. Trust accounting gives the firm a way to track the balance, explain every change, and keep client funds distinct from operating money.

That distinction affects everyday decisions. Before applying a retainer to an invoice, billing staff need to know what has been earned and which client’s funds may be used. Before issuing a refund or paying a third party, they need to know the matter’s available balance. The bank balance alone cannot answer either question because a pooled trust account may hold money for many clients.

The exact account, recordkeeping, notice, and reconciliation rules vary by jurisdiction. Build your process around the requirements that govern your firm, and have the people responsible for trust compliance review it.

The ABA’s model trust-account record rules list the journals, individual ledgers, and bank records behind this work. They are a starting reference; your jurisdiction’s adopted rules control your firm’s process.

What records does a trust-accounting process need?

The core records answer three different questions:

Record	Question it answers
Trust bank statement	What did the bank record in the trust account?
Trust account in the general ledger	What did the firm’s books record for that bank account?
Individual client or matter ledgers	How much of the total belongs to each client or matter?

Each deposit, withdrawal, transfer, or correction needs enough detail to explain the date, amount, client or matter, and reason. When a transaction affects more than one client, the allocation should be clear in the individual ledgers. A balance without a traceable transaction history is hard to review.

How does three-way reconciliation work?

Three-way reconciliation compares the adjusted trust bank balance, the trust account balance in the firm’s general ledger, and the total of the individual client or matter trust ledgers for the same date. After accounting for legitimate outstanding items, the three totals should agree. The point is to catch both bank-to-books differences and mistakes hidden within client allocations.

For a jurisdiction-specific example of the records and review, see the State Bar of California’s trust-accounting guidance.

A practical review follows this sequence:

1. Reconcile the trust bank statement to the trust account in the general ledger. Identify deposits in transit, outstanding checks, bank charges, or transactions that need investigation.
2. Total the individual client and matter ledgers as of the same date. Compare that total with the reconciled trust account balance.
3. Review unusual items, including negative client balances, old outstanding checks, unassigned deposits, and transfers that do not match an invoice or disbursement.
4. Document the reconciliation and any correction, then have the responsible person review it under the firm’s procedures.

A matching overall bank and book balance does not prove that every client’s share is correct. That is why the third comparison matters. Likewise, software may prepare reports and surface differences, but someone at the firm still needs to investigate and sign off on the result.

Common trust-accounting mistakes

Mixing client and operating money. A deposit or withdrawal can be posted to the wrong account, or an earned fee can be moved without a clear supporting record. Keep the purpose of each account and transfer visible to the people approving it.

Posting to the wrong client or matter. A trust bank account may reconcile in total while one client ledger is too high and another is too low. Review the client allocation, not just the bank statement.

Applying funds before the billing step is complete. A retainer balance is not the same as an earned fee. Confirm the invoice and the authority to transfer funds before moving money to operating.

Leaving reconciliation until a question arises. A discrepancy is easier to investigate while the transaction and supporting documents are recent. Set a regular review cadence that meets your jurisdiction’s rules.

Treating software as the control. Automation can organize records and reduce re-entry. It cannot decide whether a fee was earned, a disbursement was authorized, or a correction meets the firm’s obligations.

How can software help without replacing review?

Good trust-accounting software makes client and matter balances visible where staff prepare bills. It records trust activity with the related matter, supports the reports needed for three-way reconciliation, and helps the bookkeeper compare that activity with the general ledger. The useful test is a real workflow: enter a retainer, check the client balance, create an invoice, apply eligible funds, and inspect the bank, ledger, and client records afterward.

LeanLaw’s trust accounting tools are built on QuickBooks Online, so the trust and billing records are connected to the accounting system the firm uses. LeanLaw also covers time, invoicing, payments, and reporting; it is not a full case-management system. If your firm uses separate case or document tools, keep those roles clear when you evaluate the financial workflow.

Questions to ask before choosing a trust workflow

• Can billing staff see the available balance for the right client and matter before applying funds?
• Can the bookkeeper produce the bank, general-ledger, and client-ledger reports for the same reconciliation date?
• Who can enter, approve, and correct trust transactions?
• What supporting records remain available when a transaction is questioned later?
• How will the firm check its jurisdiction’s trust rules against the proposed workflow?

Use one sample matter to walk through each question. If you want to see how LeanLaw handles that path on QuickBooks Online, request a demo.

Frequently asked questions

Is lawyer trust accounting the same as ordinary business bookkeeping?

No. Ordinary bookkeeping tracks the firm’s assets, income, and expenses. Lawyer trust accounting must also show which client owns each amount held in trust and keep that money separate from operating funds. The firm needs both the account-level record and the individual client or matter records.

What are the three parts of three-way trust reconciliation?

They are the adjusted trust bank balance, the trust account balance in the firm’s general ledger, and the total of all individual client or matter trust ledgers as of the same date. The firm reviews and explains differences before treating the reconciliation as complete.

Can trust-accounting software guarantee compliance?

No. Software can organize transactions, support client ledgers, and produce reconciliation reports. The firm still needs appropriate approvals, regular review, and procedures that meet the rules in its jurisdiction.

Does LeanLaw require QuickBooks Online for trust accounting?

Yes. LeanLaw’s trust, billing, and reporting workflows are built on QuickBooks Online. An active QuickBooks Online subscription is required and billed separately.