Of all the bookkeeping obligations a law firm carries, none is more unforgiving than trust account (IOLTA) reconciliation. Errors here aren't just accounting mistakes — they can trigger bar association discipline, including suspension, regardless of whether any client was actually harmed.
Proper trust accounting requires reconciling three figures against each other every month: the bank statement balance, the trust ledger balance, and the sum of all individual client ledger balances. Most bar association audits specifically check for this three-way reconciliation, and a firm that only reconciles the bank statement against the trust ledger — leaving out individual client ledgers — is exposed even if the top-line numbers happen to match.
Client funds in a trust account must never be commingled with the firm's operating funds, even briefly, even for an amount the firm intends to "true up" later. Bar associations treat commingling as one of the most serious ethical violations in the profession, and it's often caught not through a deliberate audit but through a routine reconciliation review that a firm's own bookkeeping should have caught first.
Many firms treat trust reconciliation as a task that can be batched at month-end alongside regular bookkeeping. In practice, waiting means errors compound — a misapplied client payment in week one becomes much harder to trace and correct by week four, once several more transactions have posted on top of it. Firms that reconcile trust accounts weekly, or even after each significant transaction, catch and correct errors while they're still simple to fix.
Trust accounting isn't regular bookkeeping with higher stakes — it needs its own dedicated reconciliation cadence, separate from and more frequent than the firm's general close. See Bookkeeping & Accounting and Bank & Credit Card Reconciliation.
Firms that build disciplined, frequent trust reconciliation into their operating rhythm rarely face bar complaints related to trust handling — the ones that don't are disproportionately represented in disciplinary case histories.
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