Trust accounting is the system law firms use to track money that belongs to clients. When you receive a retainer, hold settlement funds, or manage transaction proceeds, that money isn’t yours. It belongs to your clients and must be kept completely separate from your firm’s operating funds.

In California, these funds go into an IOLTA account (Interest on Lawyers Trust Account). The State Bar requires this separation and has strict rules about how the money must be handled. Violating these rules can result in disciplinary action up to disbarment.

Every client deposit needs its own ledger. When a client pays a $10,000 retainer, that amount goes into the trust account and gets recorded on that specific client’s ledger. As you bill for work and earn fees, you transfer the appropriate amount from trust to your operating account. The individual ledger tracks every deposit and every withdrawal for that client.

The three-way reconciliation is the cornerstone of trust accounting. You reconcile three things: your bank statement balance, your total of all individual client ledgers, and your trust account balance in your accounting software. All three numbers must match. If they don’t, you have an error that needs to be found and fixed immediately.

Timing matters with trust accounts. You cannot withdraw fees until they’re earned. You cannot use one client’s funds to cover another client’s shortfall. You cannot borrow from the trust account for firm expenses, even temporarily. These actions constitute commingling or misappropriation, and the State Bar takes them seriously.

Documentation requirements are stricter than regular bookkeeping. You need to retain trust account records for at least five years. Every deposit, every disbursement, every client ledger must be available if the State Bar requests an audit. Missing records are almost as problematic as actual mishandling.

Most general bookkeepers don’t understand trust accounting requirements. They know debits and credits, but they don’t know IOLTA rules or the specific reconciliation requirements California mandates. Professional services bookkeeping for law firms requires understanding both general accounting principles and the specific compliance requirements your practice must meet.

Common trust accounting mistakes include depositing earned fees directly to operating accounts without proper documentation, failing to maintain individual client ledgers, and not reconciling frequently enough. Monthly reconciliation is the minimum. Many firms reconcile weekly or even daily.

Software helps but doesn’t solve everything. QuickBooks can track trust accounts if configured correctly with separate accounts and proper class tracking. Legal-specific software like Clio integrates trust accounting with practice management. The tool matters less than the discipline to use it correctly every time.

If you’re a new attorney or opening a new practice, get trust accounting set up correctly from day one. Cleaning up trust accounting problems after the fact is expensive and stressful. A San Diego bookkeeping service that works with law firms will understand these requirements and can set up proper tracking from the start.

The State Bar can audit your trust account at any time. Having clean records, proper reconciliations, and accurate client ledgers isn’t just good practice. It’s protection against the worst-case scenario of disciplinary proceedings that could end your career.