The rules for trust accounting come down to one idea applied relentlessly: money held for someone else must stay separate from your own, tracked so precisely that every dollar can be traced from the moment it arrives to the moment it leaves. Whether you are an attorney holding settlement proceeds, an executor administering an estate, or an escrow agent safeguarding a closing deposit, the same core obligations apply. You keep the funds in a dedicated account, you record every transaction as it happens, you reconcile the books each month against the bank, and you disburse only for the specific client whose money is being drawn.
Segregation Is the Foundational Rule
Trust funds belong to the beneficiary, not the fiduciary. The American Bar Association’s Model Rule 1.15, which state attorney trust account rules are built on, requires a lawyer to hold client property “separate from the lawyer’s own property” in a dedicated account.1American Bar Association. Rule 1.15: Safekeeping Property The same principle governs trustees, executors, escrow agents, and any other fiduciary holding third-party funds.
Mixing trust money with personal or business money is called commingling, and it is treated as a breach of duty regardless of intent. It does not matter if you meant to return the funds the next day. It does not matter if no beneficiary lost a dollar. The act of mixing is itself the violation, and regulators treat it as a presumption that the fiduciary has converted the beneficiary’s property.
The only exception is narrow: a fiduciary may deposit a small amount of personal money into the trust account solely to cover bank service charges on the account itself.1American Bar Association. Rule 1.15: Safekeeping Property Using the account to float operating expenses, cover a temporary shortfall, or park personal savings is prohibited.
The duty of loyalty tightens the same knot from another angle. Under the Uniform Trust Code, a trustee must administer the trust solely in the interests of the beneficiaries.2Uniform Law Commission. Uniform Trust Code Section-by-Section Summary Any transaction where the fiduciary has a personal stake is presumed harmful and can be voided. That includes obvious conflicts like buying trust property for personal use, but also subtler ones: moving assets between two trusts you manage, investing trust funds in a company you own an interest in, or depositing trust money at your own bank to help its balance sheet.3Federal Deposit Insurance Corporation. Compliance – Conflicts of Interest, Self-Dealing and Contingent Liabilities
Opening and Titling the Account
A trust account must be held at a financial institution and titled to reflect its fiduciary nature. Standard designations include “Trust Account,” “Client Funds Account,” or “Escrow Account.” The bank has to agree to specific regulatory obligations before you open the account. The most important is automatic overdraft reporting: under the ABA’s model rules, the bank must notify the disciplinary authority every time a properly payable instrument is presented against a trust account with insufficient funds, whether or not the bank honors it.4American Bar Association. Model Rules for Trust Account Overdraft Notification Do not open a trust account at a bank unwilling to make those reports. For the same reason, an attorney cannot accept overdraft protection or a line of credit on a trust account; the protection would mask the very shortfall the reporting system exists to catch.
IOLTA or Separate Interest-Bearing Account
The type of account depends on the size of the funds and how long you expect to hold them. Small amounts or funds held briefly go into a pooled Interest on Lawyers’ Trust Account (IOLTA), where the funds of multiple clients are held together and the interest is sent to a state bar foundation for legal aid rather than to individual clients. Pooling makes sense because the interest on any single small balance would be negligible or would cost more to administer than it earned.
Substantial funds, or funds you will hold for an extended period, belong in a separate interest-bearing account opened for that specific client or matter. Interest in those accounts is part of the trust principal and belongs to the beneficiary. There is no universal dollar cutoff between “nominal” and “substantial”; the judgment turns on how much interest the deposit would generate, the cost of opening and running a separate account, and how long the money will sit.
FDIC Pass-Through Coverage
Deposit insurance for trust accounts works on a pass-through basis. Each beneficiary’s interest in the account is insured up to $250,000, provided the fiduciary relationship is clearly disclosed in the bank’s account records.5eCFR. 12 CFR 330.5 – Recognition of Deposit Ownership and Fiduciary Relationships For an IOLTA, each client counts as a separate depositor. For formal trusts, an owner’s deposits are insured up to $250,000 per eligible beneficiary, capped at $1,250,000 once five or more beneficiaries are named.6FDIC. Trust Accounts Without accurate titling and records identifying the beneficiaries, the FDIC will not recognize pass-through coverage.
The Three-Ledger Recordkeeping System
Trust accounting runs on a three-part system built so every dollar is traceable from source to destination. Each part serves a different purpose, and all three must agree at the end of every month.
- A trust account general ledger that records every deposit and disbursement across all clients or beneficiaries in chronological order and reflects the total account balance at any moment.
- Individual client or matter ledgers, one for each client, tracking the funds that belong specifically to that person. The balance on any client ledger represents what you owe that client and must never go negative.
- A trust account check register capturing the details of every payment: check number, date, payee, amount, and the specific client matter it relates to.
Enter every transaction immediately. Delayed entries create the kind of ambiguity that leads to one client’s money accidentally covering another client’s obligation.
Monthly Three-Way Reconciliation
Once a month, three numbers get compared: the adjusted bank statement balance after accounting for outstanding checks and deposits in transit, the general ledger balance, and the combined total of all individual client ledger balances. All three must match exactly. A discrepancy means either the books contain an error or funds have been misallocated.
Review each client ledger for negative balances as part of the reconciliation. A negative balance on any individual ledger means you have spent more than that client had on deposit, which necessarily means another client’s funds covered the gap. That is commingling, even when the overall trust account balance is positive.
How Long to Keep the Records
Retention periods depend on the type of fiduciary and the jurisdiction. The ABA’s model rules recommend keeping trust account records for at least five years after the representation ends.7American Bar Association. ABA Model Rules on Client Trust Account Records – Rule 1 Recordkeeping Generally National banks acting in a fiduciary capacity must keep records for at least three years after the account terminates or any related litigation concludes, whichever is later.8eCFR. 12 CFR 9.8 – Recordkeeping State rules commonly require five to seven years. Keep everything at least as long as your jurisdiction demands, and err on the side of longer.
Deposits, Cleared Funds, and Disbursements
Funds received for a client or beneficiary must be deposited into the trust account promptly, which most jurisdictions read as within one to three business days. Holding a client’s check for a week is a compliance violation even if no one is harmed.
Before disbursing against a deposit, confirm the funds have cleared. A check is not real money until the issuing bank honors it, and the hold period depends on the instrument, the amount, and the banks involved. Disbursing early is one of the most common ways fiduciaries stumble into commingling: if the deposit bounces, the trust account is short, and every dollar you paid out came from another client.
Every withdrawal has to benefit the specific client or matter whose funds are being drawn. Paying a third-party vendor on a client’s behalf, forwarding settlement proceeds, and moving earned fees to your operating account are all permitted, provided each transaction is authorized and documented. Using one client’s money to cover another client’s disbursement, paying office rent from the trust account, or lending trust funds to yourself is prohibited under any circumstances.
Transferring Earned Fees
The most common transfer out of a trust account is a fee the fiduciary has earned. A fee is earned only after the work is done or the triggering condition is met. Until then, an advance retainer is the client’s property and stays in the trust account. Once the fee is earned, move it promptly; letting earned fees pile up in the trust account is itself commingling, because your money is now mixed with client funds. If any portion of the fee is disputed, the disputed amount stays in the trust account until the disagreement is resolved.
Reporting to Beneficiaries and Tax Filings
Fiduciaries owe beneficiaries reasonable information about how the trust is being administered. The Uniform Trust Code requires at minimum annual accountings to qualified beneficiaries.2Uniform Law Commission. Uniform Trust Code Section-by-Section Summary For attorneys and other professionals, the engagement agreement or trust document usually sets the reporting cadence, and a final accounting at the conclusion of the matter must detail every receipt, disbursement, and transfer and confirm the net balance owed.
Trusts and estates that generate income have their own tax obligations. A fiduciary must file IRS Form 1041 for any domestic estate with gross income of $600 or more during the year, or any domestic trust with any taxable income or gross income of at least $600.9Office of the Law Revision Counsel. 26 USC 6012 – Persons Required to Make Returns of Income Filing is also required if any beneficiary is a nonresident alien, regardless of amount.10Internal Revenue Service. Instructions for Form 1041
Along with Form 1041, the fiduciary issues a Schedule K-1 to each beneficiary who received a distribution or an allocation of income, reporting their share of the trust’s income, deductions, and credits.11Internal Revenue Service. About Form 1041, U.S. Income Tax Return for Estates and Trusts Failing to provide a K-1 on time, or providing one with incorrect information, carries a penalty of $340 per form, with a calendar-year maximum of $4,098,500.10Internal Revenue Service. Instructions for Form 1041 Intentional failures double the penalty and remove the cap.
What Happens When the Rules Are Broken
Trust accounts are actively monitored by state bar associations, state banking commissions, and federal banking regulators. Automatic overdraft reporting is the most powerful trigger: the bank simply sends the notice, and the disciplinary agency decides what to do. Many jurisdictions also run random compliance audits, comparing the fiduciary’s records against the bank’s records and looking for negative client ledger balances, skipped or backdated reconciliations, and transfers between trust and operating accounts without supporting documentation.
Misappropriating client funds, whether through deliberate theft or negligent bookkeeping that lets money go missing, is one of the few offenses where disciplinary bodies routinely impose the most severe available sanction. For attorneys, that means disbarment. Courts have consistently treated conversion of client funds as an act of moral turpitude calling for permanent removal absent extraordinary mitigating circumstances.
The consequences do not stop at the license. The client or beneficiary can pursue civil claims for the full loss plus interest and potentially punitive damages, and depending on the facts the fiduciary may face criminal charges for theft, fraud, or embezzlement. None of this requires proof of intentional theft. Sloppy bookkeeping that leaves an unexplained shortfall triggers the same investigations, because the fiduciary carries the burden of proving that every dollar is accounted for.
Protecting the Account From Wire Fraud
Business email compromise is one of the most serious active threats to trust and escrow accounts. A criminal gains access to an attorney’s or client’s email and sends fraudulent wire instructions that redirect trust funds to an account they control. Real estate closings are a favorite target, with criminals impersonating title companies or agents to reroute closing funds.12Financial Crimes Enforcement Network. Advisory to Financial Institutions on E-Mail Compromise Fraud
Build a verification protocol that does not rely on email alone. Before executing any wire transfer, confirm the instructions through a separate channel: call the client at a phone number you already have on file, not one supplied in the suspicious email. Multi-factor authentication is required on every account that can initiate transactions. If unauthorized funds do leave the account, report it to law enforcement within 24 hours, because recovery rates drop sharply after that window closes.12Financial Crimes Enforcement Network. Advisory to Financial Institutions on E-Mail Compromise Fraud