IOLTA Three-Way Reconciliation: A Step-by-Step Guide for Law Firms

A trust account can have the correct bank balance and still contain serious accounting problems.

The bank may agree with the law firm’s accounting software while individual client ledgers are inaccurate. One client may have too much money assigned to their matter while another client’s balance is negative. A deposit may appear in the bank but be assigned to the wrong matter. An earned-fee transfer may be correct in total but unsupported at the client level.

A standard bank reconciliation may not detect these problems.

An IOLTA three-way reconciliation is designed to determine whether the bank, the trust-account books, and the individual client ledgers all tell the same story.

For law firms holding client or third-party funds, this is one of the most important controls in the entire accounting process.

What Is an IOLTA Three-Way Reconciliation?

An IOLTA three-way reconciliation compares three balances:

1. The adjusted trust-account bank balance.
2. The trust-account book or cash-journal balance.
3. The combined total of all individual client and matter ledger balances.

At the end of the reconciliation, all three numbers should match.

The formula can be expressed as:

Adjusted bank balance = Trust book balance = Total of all client ledger balances

When the balances do not agree, the difference must be investigated and documented. It should not be ignored, carried forward indefinitely, or eliminated through an unsupported adjustment.

ABA guidance explains that trust-account reconciliation involves matching the ledger or trial balance and adjusting for items such as outstanding checks and deposits not yet credited by the bank. The ABA identifies monthly reconciliation as the preferred practice, even where a less frequent minimum may apply.

Why Is Three-Way Reconciliation Different From Regular Bank Reconciliation?

A traditional bank reconciliation usually compares two balances:

• The bank statement.
• The accounting software or checkbook.

That process can confirm whether recorded bank transactions agree with the financial institution after accounting for timing differences.

It does not necessarily confirm that the money has been assigned correctly among individual clients.

Consider this example:

• Trust bank balance: $200,000.
• Trust accounting software balance: $200,000.
• Client A ledger: $75,000.
• Client B ledger: $135,000.
• Client C ledger: negative $10,000.
• Total client ledgers: $200,000.

The total agrees with the bank, but Client C has a negative balance. That may mean funds belonging to Clients A or B were used to cover Client C’s disbursement.

A bank reconciliation alone would not necessarily identify the client-level violation.

A three-way reconciliation requires the firm to review both the total and the individual ledger detail.

Which Three Balances Must Match?

1. Adjusted bank balance

The bank statement provides the ending bank balance for the reconciliation period.

That amount is then adjusted for legitimate timing differences, including:

• Deposits in transit.
• Outstanding checks.
• Authorized payments not yet cleared.
• Bank errors.
• Other reconciling items supported by documentation.

The adjusted bank balance should represent the trust-account cash that should be available as of the reconciliation date.

2. Trust-account book balance

The book balance comes from the law firm’s trust-account register, cash receipts and disbursements journal, checkbook, or accounting system.

It should include every:

• Deposit.
• Check.
• Electronic payment.
• Wire transfer.
• Earned-fee transfer.
• Refund.
• Reversal.
• Correction.
• Other trust-account transaction.

The trust-account book balance should agree with the adjusted bank balance.

3. Total of individual client and matter ledgers

Every client or matter with trust activity should have a separate ledger showing:

• Beginning balance.
• Deposits.
• Disbursements.
• Transfers.
• Transaction dates.
• Check or reference numbers.
• Transaction descriptions.
• Ending balance.

The ending balances of all open client and matter ledgers are added together.

That total should equal both the adjusted bank balance and the trust-account book balance.

Why Does an IOLTA Three-Way Reconciliation Matter?

A three-way reconciliation can reveal problems that may remain hidden in ordinary financial reports.

These may include:

• Negative client balances.
• Deposits assigned to the wrong client.
• Duplicate transactions.
• Missing client-ledger entries.
• Disbursements recorded only at the bank level.
• Earned-fee transfers that were not allocated to a matter.
• Old outstanding checks.
• Unresolved deposits in transit.
• Bank fees improperly charged to client funds.
• Manual journal entries that do not identify a client.
• Differences between case-management and accounting systems.
• Funds remaining in trust after a matter has closed.
• Trust money mistakenly deposited into operating.
• Operating funds mistakenly deposited into trust.
• Staff errors or unauthorized activity.

The objective is not merely to make the totals match. The objective is to demonstrate that the balance attributed to every client is accurate and fully supported.

Florida’s Monthly Trust Reconciliation Requirements

State requirements vary, but Florida provides a useful example of how detailed trust-account procedures can be.

Under the current Rules Regulating The Florida Bar, lawyers receiving or disbursing trust funds must perform monthly reconciliations of trust bank accounts. The reconciliation must identify the bank balance, deposits in transit, outstanding checks by date and check number, and other items needed to reconcile the bank with the checkbook and cash receipts and disbursements journal.

Florida also requires a monthly comparison between the total reconciled trust-account balances and the total of the individual trust ledgers. Differences must be specifically described and explained.

The current rules additionally require:

• An annual detailed list of unexpended trust money held for each client or matter.
• Retention of the reconciliations, comparisons, and listings for at least six years.
• A written trust-account supervision and compliance plan for firms with more than one lawyer.
• An annual trust-accounting certificate filed during the period established by The Florida Bar.

Law firms outside Florida should consult their own state’s rules rather than assuming Florida’s terminology or procedures apply to them.

Documents Needed for a Three-Way Reconciliation

Before beginning the reconciliation, gather a complete set of records for the period.

The monthly package should generally include:

• Complete bank statement.
• Check images or cancelled checks.
• Deposit documentation.
• Incoming and outgoing wire confirmations.
• ACH and electronic-payment reports.
• Trust-account register.
• Cash receipts journal.
• Cash disbursements journal.
• Individual client and matter ledgers.
• List of open client balances.
• Outstanding-check report.
• Deposit-in-transit report.
• Earned-fee transfer documentation.
• Billing reports.
• Settlement statements.
• Prior month’s reconciliation.
• Documentation for prior unresolved differences.
• Reports from practice-management or billing software.
• Notes supporting corrections or adjustments.

Starting without complete records increases the risk that the reconciliation will be forced to balance without identifying the actual cause of a difference.

How to Perform an IOLTA Three-Way Reconciliation

Step 1: Confirm the reconciliation period

Use a consistent monthly cutoff, normally the final calendar day of the month.

Confirm that all transactions through the cutoff date have been posted to the accounting system.

Transactions dated in the reconciliation month should not remain unrecorded merely because the reconciliation is being prepared later.

Step 2: Review the bank statement

Examine the entire statement for:

• Deposits.
• Checks.
• ACH transactions.
• Wire transfers.
• Bank charges.
• Returned items.
• Reversals.
• Unfamiliar payees.
• Unusual withdrawals.
• Transfers between trust and operating accounts.

Do not rely only on imported bank-feed data. The official bank statement and supporting transaction records should remain part of the reconciliation package.

Step 3: Match bank activity to the trust-account books

Match each bank transaction to the corresponding accounting entry.

Verify:

• Date.
• Amount.
• Client or matter.
• Payee or source.
• Check or transaction number.
• Purpose.
• Supporting documentation.

Unmatched items should be placed on an exception list and investigated.

Step 4: Identify deposits in transit

A deposit in transit is a legitimate deposit recorded by the law firm before the cutoff date but not yet reflected on the bank statement.

For every deposit in transit, document:

• Deposit date.
• Amount.
• Client or matter.
• Deposit confirmation.
• Date it cleared after month-end.

A deposit that remains ���in transit” for multiple months should not continue to be carried without investigation.

Step 5: Identify outstanding checks

An outstanding check is recorded in the law firm’s books but has not cleared the bank as of the statement date.

The outstanding-check list should include:

• Check number.
• Check date.
• Payee.
• Client or matter.
• Amount.
• Purpose.

Review aging carefully. Older outstanding checks may require contact with the payee, reissuance, stop-payment procedures, client communication, or analysis of unclaimed-property obligations.

Step 6: Calculate the adjusted bank balance

Begin with the ending balance shown on the bank statement.

Then:

• Add valid deposits in transit.
• Subtract valid outstanding checks.
• Add or subtract documented bank corrections.
• Account for other legitimate timing items.

The result is the adjusted bank balance.

Step 7: Confirm the trust-account book balance

Run the trust-account register or journal through the same month-end date.

Verify that the ending book balance agrees with the adjusted bank balance.

When it does not, investigate possibilities such as:

• Missing transactions.
• Duplicate entries.
• Incorrect dates.
• Transposed numbers.
• Bank fees not recorded.
• Transactions posted to the wrong account.
• Deleted or altered transactions.
• Opening-balance differences.
• Prior-period adjustments.

Do not enter a generic “reconciliation adjustment” solely to make the difference disappear.

Step 8: Generate the client-ledger balance report

Produce a list of every client and matter with an ending trust balance as of the reconciliation date.

The report should include:

• Client name.
• Matter name or number.
• Ending balance.
• Last transaction date, when available.
• Negative or zero-balance exceptions.
• Total of all ledger balances.

Closed matters with remaining balances should be separately reviewed.

Step 9: Add all client-ledger balances

Calculate the total amount held for all clients and matters.

The ledger total should equal the adjusted bank balance and the trust book balance.

When the total does not agree, possible causes include:

• A transaction recorded in the control account but not assigned to a client.
• A transaction assigned to the wrong matter.
• A deleted client-ledger entry.
• An opening balance that was not migrated correctly.
• A manual journal entry without a client.
• Different cutoff dates between systems.
• A transaction imported twice.
• A client ledger maintained outside the accounting system.
• A payment recorded in case-management software but not accounting software, or vice versa.

Step 10: Review every negative client balance

A negative client balance should receive immediate attention.

Determine:

• Which transaction created the negative balance.
• Whether the transaction belongs to another client.
• Whether funds were disbursed before a deposit cleared.
• Whether a fee was withdrawn incorrectly.
• Whether a software mapping problem occurred.
• Whether the trust account has an actual shortage.

The issue should be escalated to the responsible attorney according to the firm’s written procedures.

Step 11: Review old and inactive balances

A trust account can reconcile mathematically while holding money that should have been distributed.

Review balances associated with:

• Closed matters.
• Inactive clients.
• Completed settlements.
• Former clients.
• Returned retainers.
• Stale checks.
• Unidentified deposits.
• Long-standing escrow amounts.

Every balance should have a clear owner and documented reason for remaining in trust.

Step 12: Investigate and document every difference

A difference should be explained with evidence, not merely labeled.

A proper reconciliation note might identify:

• The exact amount.
• The affected client or matter.
• The date the issue occurred.
• The cause.
• The corrective entry.
• The person who prepared the correction.
• The attorney who reviewed it.
• The date the correction was completed.

Unresolved differences should remain on a tracked exception report until fully corrected.

Step 13: Prepare the final monthly reconciliation package

A complete package should allow a reviewer to understand the account without reconstructing the entire process.

Include:

• Bank statement.
• Bank reconciliation.
• Adjusted bank balance.
• Trust-account register.
• Client-ledger balance report.
• Outstanding-check list.
• Deposit-in-transit list.
• Exception report.
• Supporting documents.
• Notes for any differences or corrections.
• Evidence of preparer and attorney review.
• Date of completion.

Step 14: Obtain independent review

The person reviewing the reconciliation should not simply confirm that the spreadsheet contains matching totals.

The reviewer should ask:

• Are all three balances from the same cutoff date?
• Does every reconciling item have support?
• Are there any negative client balances?
• Are outstanding checks aging?
• Are closed matters holding money?
• Are there unexplained manual entries?
• Do transfers to operating agree with billing records?
• Are prior-month exceptions resolved?
• Are any transactions unusual?
• Can the firm identify the owner of every dollar?

Common Reasons Three-Way Reconciliations Do Not Match

Transactions posted to the wrong date

A transaction recorded on the last day of one month may appear in another month’s report if the accounting date and bank date are inconsistent.

Transactions without a client or matter

A trust-account transaction posted only to the general ledger can affect the control balance without affecting any individual client ledger.

Duplicate imports

Bank feeds, practice-management integrations, and manual entry can create duplicate deposits or payments.

Deleted or changed transactions

Editing a previously reconciled transaction may change an earlier month’s balance and cause current reports to stop agreeing with completed reconciliation files.

Incomplete software integrations

A payment may appear in the billing platform but not in the accounting software. Transfers and refunds are especially vulnerable when systems are not mapped correctly.

Unsupported journal entries

Manual entries can force the general ledger to match the bank without correcting the affected client ledger.

Improper opening balances

When a firm changes accounting systems, client balances and the trust control account may be imported differently.

Bank fees

A bank fee charged directly to trust may reduce cash belonging to clients unless it is handled according to the jurisdiction’s rules and the firm’s permitted bank-charge funds.

Returned deposits

A deposit may be reversed after the firm has already recorded or disbursed it.

Stale outstanding checks

Old checks can remain on the reconciliation month after month, even though the underlying obligation requires follow-up.

IOLTA Reconciliation Mistakes to Avoid

Reconciling only the bank statement

A two-way bank reconciliation is not a complete three-way client trust reconciliation.

Using different reporting dates

The bank, books, and client-ledger report must use the same cutoff date.

Ignoring small differences

A difference of a few dollars can indicate a larger process problem, incorrect allocation, fee, or transaction error.

Carrying unexplained adjustments

A reconciling item should have a legitimate timing explanation and supporting evidence.

Allowing negative balances to remain

A negative balance is not simply a bookkeeping presentation issue. It may indicate that a disbursement exceeded the funds available for that client.

Reusing the same spreadsheet without validating source data

A template is useful only when the underlying reports are complete and accurate.

Letting the preparer approve their own work

Independent review strengthens internal control and increases the likelihood that unusual transactions will be questioned.

Treating reconciliation as a year-end project

Waiting until tax season or year-end makes errors harder to trace and may allow problems to accumulate.

Internal Controls That Strengthen IOLTA Compliance

A reliable reconciliation process should be supported by operational controls throughout the month.

Separate duties when possible

Different people may be assigned to:

• Receive and deposit funds.
• Record transactions.
• Approve disbursements.
• Initiate electronic transfers.
• Prepare reconciliations.
• Review and sign off on reconciliations.

Smaller firms may not have enough staff for complete separation. In that case, documented attorney review, bank alerts, restricted permissions, and external reconciliation can reduce risk.

Restrict bank access

Review who can:

• View the account.
• Initiate transfers.
• Approve wires.
• Add payees.
• Sign checks.
• Modify accounting records.

Remove access promptly when staff responsibilities change.

Use matter-specific descriptions

Every transaction should clearly identify the client, matter, amount, and purpose.

Review activity during the month

Do not wait until month-end to identify:

• Negative client balances.
• Unidentified deposits.
• Returned payments.
• Unusual withdrawals.
• Missing supporting documents.
• Old checks.

Lock completed periods

When supported by the accounting system, completed reconciliation periods should be locked to prevent unapproved changes.

Maintain a written trust-account plan

Document:

• Roles and responsibilities.
• Authorized signers.
• Approval thresholds.
• Deposit procedures.
• Earned-fee transfer procedures.
• Reconciliation responsibilities.
• Review requirements.
• Correction procedures.
• Escalation rules.
• Record-retention procedures.
• Staff-change protocols.

What Should an Audit-Ready IOLTA File Look Like?

An audit-ready file should not require the firm to search through multiple systems and email accounts to explain the trust balance.

For each month, the firm should be able to produce a clearly labeled folder containing:

1. Bank statement and transaction records.
2. Completed bank reconciliation.
3. Trust-account book balance.
4. Client-ledger balance report.
5. Proof that all three balances agree.
6. Outstanding checks and deposits in transit.
7. Supporting documents for transfers and corrections.
8. Explanation of exceptions.
9. Evidence of attorney review.
10. Follow-up documentation showing that prior issues were resolved.

TAS Firm’s IOLTA service is structured around true monthly three-way reconciliations, clean client ledgers, audit-ready reporting, and monthly trust review.

When Should a Law Firm Consider an IOLTA Review?

A review may be appropriate when:

• The firm cannot produce completed three-way reconciliations.
• Reconciliations are several months behind.
• The bank and books match, but client ledgers have not been tested.
• Negative client balances exist.
• The firm recently changed accounting software.
• A bookkeeper or controller recently left.
• The firm is acquiring, merging with, or separating from another practice.
• Old outstanding checks have accumulated.
• Closed matters still have balances.
• Trust and operating transfers lack support.
• One employee controls the complete process.
• A bank overdraft or returned item occurred.
• The firm received a complaint, inquiry, or audit notice.
• Managing attorneys do not understand the reports they are signing.
• The firm wants to verify compliance before a problem occurs.

Frequently Asked Questions About Three-Way Reconciliation

What are the three parts of an IOLTA reconciliation?

The three components are the adjusted bank balance, the trust-account book balance, and the total of all individual client and matter ledgers.

Do all three balances have to match exactly?

The objective is for the three balances to agree. Legitimate timing differences may affect the initial bank statement balance, but those differences must be identified and incorporated into the adjusted bank balance.

How often should a three-way reconciliation be performed?

The firm should follow the requirements of its jurisdiction. Monthly reconciliation is common and is specifically required under Florida��s current trust-account rules.

Is QuickBooks reconciliation a three-way reconciliation?

Not by itself. A standard QuickBooks bank reconciliation generally compares the bank with the books. The firm must also confirm that the total of all client and matter ledgers agrees with the reconciled trust-account balance.

Who should prepare the reconciliation?

It may be prepared by a qualified internal accountant, law firm bookkeeper, controller, or outsourced trust-account specialist. The process should include appropriate supervision and attorney review.

Can the same person prepare and approve the reconciliation?

Complete separation may not be practical in a small firm, but independent review is preferable. When staffing is limited, the responsible attorney should carefully review the complete package and supporting documentation.

What should happen when the three balances do not match?

The firm should identify the amount and source of the difference, determine which client or transaction is affected, document the investigation, make an authorized correction, and retain the supporting records.

Is a negative client ledger a serious issue?

Yes. It can indicate that more money was disbursed for a client than the firm was holding for that client. It should be investigated immediately.

How long should reconciliation records be retained?

Retention requirements vary by jurisdiction. Florida currently requires the relevant monthly reconciliations, comparisons, and annual listings to be retained for at least six years.

Make the Monthly Reconciliation a Non-Event

A strong IOLTA process should produce the same result every month:

• The bank balance is verified.
• The trust books are complete.
• Every client balance is supported.
• The three totals match.
• Exceptions are documented.
• The responsible attorney knows what was reviewed.
• The monthly package is ready to produce.

When those steps happen consistently, the firm does not need to reconstruct years of trust-account activity after a problem appears.

TAS Firm helps law firms review their existing trust-account process, identify compliance gaps, clean up client ledgers, and establish documented monthly three-way reconciliations.

Book a free IOLTA review to see whether your current reconciliation process would hold up under closer review.

This article provides general educational information and is not legal or ethical advice. Trust-account requirements vary by jurisdiction. Attorneys should consult the rules, bar guidance, and qualified ethics counsel applicable to their practice.