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How do law firms handle trust accounting and bookkeeping?

Trust accounting is one of the most regulated aspects of running a law practice. State bar associations require attorneys to keep client funds completely separate from the firm’s operating money. Violate these rules and you’re looking at discipline, malpractice claims, or disbarment.

The foundation is an IOLTA account (Interest on Lawyers Trust Accounts). This pooled trust account holds client retainers, settlement proceeds, and any other funds you’re holding on behalf of clients. The money doesn’t belong to the firm until it’s earned. When someone pays a $15,000 retainer, that money sits in trust. You transfer funds to your operating account only as you bill time and earn fees.

Bookkeeping for trust accounts goes beyond standard small business bookkeeping because you’re tracking two layers. The trust account itself needs reconciliation like any bank account. But you also need individual client ledgers within that account showing exactly how much belongs to each client at any moment. You should be able to say “Client A has $4,200 in trust, Client B has $8,500” and have those numbers add up to your total trust balance.

Three-way reconciliation is the standard. You compare the bank statement balance against your trust account ledger balance and against the sum of all individual client ledgers. All three numbers must match. When they don’t, you have an error that needs to be found immediately. Monthly reconciliations are the minimum. Many firms reconcile more frequently.

Common mistakes include transferring funds before they’re earned, failing to maintain accurate client ledgers, and sloppy documentation. Your records should show what came in, from whom, for what matter, and where it went. State bars can audit these records, and incomplete documentation creates problems even when money is handled correctly.

Most professional services firms like law practices work with accountants who understand trust accounting rules specifically. The consequences of getting this wrong go beyond financial penalties, so proper setup and ongoing oversight are worth the investment. Someone unfamiliar with bar requirements can create compliance problems even with good intentions.

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