The three-way trust reconciliation is the most important bookkeeping task in a law firm's accounting workflow — and the most commonly done wrong or skipped entirely. Every state bar requires it monthly. Done correctly, it proves that every dollar of client money is accounted for. Here's exactly how to do it.
What Is a Three-Way Reconciliation?
A three-way reconciliation compares three separate records of the same pool of money:
- The bank statement balance — what the bank says is in the account
- The trust ledger balance — what your accounting system says is in the account
- The sum of all client ledger balances — what every individual client's balance adds up to
All three must agree. If they don't, there's a discrepancy — missing money, misposted transactions, bank errors, or unrecorded activity — and you must find it before the month closes.
Step 1: Reconcile the Bank Statement to Your Trust Ledger
This is the standard bank reconciliation you'd do for any account. Start with the bank's ending balance and adjust for timing differences:
Bank-to-Ledger Reconciliation
If these don't match, look for bank fees, returned items, or transactions recorded in your ledger that haven't hit the bank (or vice versa).
Step 2: Confirm the Trust Ledger Matches the Sum of Client Ledgers
List every open matter's current trust balance and add them up. The total must equal your trust ledger balance from Step 1:
| Client / Matter | Matter # | Trust Balance |
|---|---|---|
| Acme Corp — Contract dispute | 2024-101 | $15,000.00 |
| Johnson Estate | 2024-102 | $22,070.00 |
| Reyes — Personal injury | 2024-103 | $8,500.00 |
| Park Family — Closing | 2024-104 | $5,000.00 |
| Total client ledger balances | $50,570.00 |
Ledger-to-Client Totals Check
Step 3: Document and Sign Off
The reconciliation isn't done until it's documented. Keep a signed, dated record showing:
- The reconciliation date and the period it covers
- All three figures and that they agree (or the discrepancy and how it was resolved)
- The name of the person who performed the reconciliation and who reviewed it
- Copies of the bank statement and the client ledger summary
Most state bars require these records be kept for at least five years. Some auditors specifically ask for 36 months of reconciliation records on random audits.
Best practice: have someone other than the person recording transactions review the monthly reconciliation. Separation of duties is your first line of defense against both errors and fraud.
When You Find a Discrepancy
The worst thing you can do with a reconciliation difference is plug it or leave it unexplained. Common causes of discrepancies and how to find them:
Bank fees or wire charges not recorded
Banks charge fees for wires, returned checks, and service charges. These must be immediately recorded and covered by the firm — client funds cannot absorb bank charges. Look for any bank-generated charges that don't appear in your trust ledger.
Deposit in transit recorded wrong
If a settlement check was deposited on the last business day of the month, it may appear in your ledger but not on the bank statement. Carry it as a deposit in transit and verify it clears in the first few days of the next month.
Check recorded for wrong amount
A check issued for $1,250 recorded as $1,520 will create a $270 difference. Compare each outstanding check in your ledger against the actual check amount.
Client ledger posting error
If you credited the wrong client matter, the trust ledger balance is fine but one client is overstated and another is understated. Search for the amount as a misposted transaction across all open matters.
What Happens If You Miss a Month
State bar disciplinary rules typically require reconciliation monthly. Missing a month isn't just a bookkeeping oversight — in most jurisdictions it's an independent ethics violation. If an audit finds months of un-reconciled trust accounts, the discipline can be harsher than the underlying error that caused it.
If you're behind, the right move is to reconstruct the reconciliations going back to the last clean month, document what you find, and if there are unresolved discrepancies, consult your state bar's ethics hotline before self-reporting. Many bars have confidential assistance programs for attorneys who discover problems and address them proactively.
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BaseLedgerPro Legal generates the three-way reconciliation report with one click — bank balance, trust ledger, and client ledger totals in one document, ready to sign and file.
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