IOLTA Rules by State: Requirements for All 50 States (2026)

,500 filing-fee deposit or a retainer that will be used within weeks is a typical example.

The bank pays interest on the pooled account, but that interest doesn't go to the firm or the clients. It goes to the state's IOLTA program, which uses it to fund civil legal aid. Larger client deposits held for longer periods usually go into a separate interest-bearing trust account where the interest goes to the client.

Who gets the interest on an IOLTA account?

The state IOLTA program, usually a bar foundation or a legal aid funding body. The firm can't keep it, and the clients don't receive it. We cover this in more detail in who gets the interest on a law firm trust account.

Is IOLTA Mandatory in Every State?

No, but it is in most. The ABA Commission on IOLTA tracks 53 jurisdictions: the 50 states, DC, Puerto Rico, and the US Virgin Islands. It lists 47 as mandatory, 5 as opt-out, and 1 as voluntary.

For the 50 states and DC, that works out like this:

• Mandatory: 46 states and DC
• Opt-out: Alaska, Kansas, Nebraska, and Wyoming

Mandatory vs opt-out vs voluntary IOLTA

The ABA defines the three types this way.

• Mandatory: Every lawyer in the state who keeps a client trust account must participate.
• Opt-out: Every lawyer participates unless they choose not to.
• Voluntary: Lawyers participate only if they choose to sign up.

In practice, opt-out works a lot like mandatory. You're in by default, and leaving takes a formal step with the state program.

When did states make IOLTA mandatory?

Many programs started as voluntary or opt-out and converted later. Illinois made IOLTA mandatory in 1987, New York in 1988, and Florida, Texas, Colorado, and Oregon in 1989. More recent conversions include Idaho (2012), South Dakota (2017), and Virginia (2022). Each state's conversion year is listed in its entry below where the ABA gives one.

IOLTA Rules That Apply in Every State

The details change by state, but the core rules come from Rule 1.15 of each state's Rules of Professional Conduct, which is based on ABA Model Rule 1.15. These apply almost everywhere.

Keep client money separate. Client funds go into a trust account, never the firm's operating account. Mixing the two is commingling, and it's one of the most common reasons lawyers end up in front of a disciplinary board.

Use an eligible bank. IOLTA accounts must be held at a bank that has agreed to the state's IOLTA terms. Most state programs publish a list of eligible or approved banks. If you're opening a new account, our IOLTA banking checklist walks through what to confirm with the bank.

Keep complete records. ABA Model Rule 1.15 says trust account records must be kept for five years after the representation ends. Many states use five years. Some set a different period, so check your state's rule.

Reconcile regularly. Your bank statement, your trust account ledger, and each client's ledger all have to agree. Many states require this reconciliation at least monthly. See our guide to three-way reconciliation for a law firm trust account for how to do it step by step.

Never let a client balance go negative. You can't spend one client's money on another client's matter, even for a day.

For a full overview of trust accounting rules, see our guide to law firm trust accounting, IOLTA rules, and compliance.

What Changes From State to State

These are the areas where state IOLTA rules differ most:

1. Participation status: mandatory or opt-out.
2. The program: who receives the interest and handles enrollment and reporting.
3. Overdraft notification: whether banks must report bounced trust account checks to the state's disciplinary authority.
4. Reconciliation frequency: monthly is common, but the exact requirement and what counts as a reconciliation vary.
5. Record retention: five years is the most common period, but not the only one.
6. Annual certification: many states ask lawyers to certify trust account compliance on their yearly bar registration.
7. Interest rate rules: many states require banks to pay IOLTA accounts the same rate they pay similar non-IOLTA accounts.

IOLTA Rules by State: All 50 States and DC

Each entry below lists the state's IOLTA participation status (with the year it became mandatory where the ABA lists one), the program that runs IOLTA in that state, and the state's trust account overdraft notification rule.

Status and program names come from the ABA Commission on IOLTA. Overdraft rule citations come from the ABA's trust account overdraft notification chart, last published in October 2019, so confirm the current rule with your state bar before you rely on a citation.

IOLTA Rules for Multi-State Law Firms

If your firm has offices or lawyers in more than one state, you'll likely need a trust account in each state where you hold client funds. ABA Model Rule 1.15 says client funds should be kept in a separate account in the state where the lawyer's office is located, or somewhere else with the client's consent.

In practice, multi-state firms usually:

1. Open a separate IOLTA account in each state where an office holds client money.
2. Enroll each account with that state's IOLTA program and follow its reporting rules.
3. Reconcile each account on the schedule its state requires, which may differ.
4. Keep records for the longest retention period that applies, so no state's rule is missed.
5. Track which lawyers are admitted where, since each lawyer must meet the rules of their own licensing state.

Running several IOLTA accounts under different rules is where spreadsheets start to fail. One missed reconciliation in one state is still a violation.

How to Stay Compliant With Your State's IOLTA Rules

Step 1: Confirm your state's status and program

Use the list above to find your state's program, then check the program's website for enrollment forms and the current list of eligible banks.

Step 2: Open the account at an eligible bank

Title the account the way your state requires, usually including "IOLTA" or "Trust Account" in the name. Register it with the state program, and in states with overdraft rules, confirm the bank has signed the overdraft notification agreement.

Step 3: Set up a ledger for every client

Each client with money in the IOLTA account needs their own ledger. The total of all client ledgers must always equal the trust account balance.

Step 4: Reconcile on schedule

Do a three-way reconciliation at least as often as your state requires. Monthly is the safest default.

Step 5: Complete your annual certification

If your state asks you to certify trust account compliance on your annual registration, make sure your records back up what you certify.

Step 6: Know what happens if a check bounces

In states with overdraft rules, the bank reports the overdraft to the disciplinary authority, often before you know it happened. You'll be asked to explain it, so have your records ready. Our guide on what to do when your bank reports a trust account overdraft walks through the first steps.

How LawAccounting Helps Firms Follow IOLTA Rules

LawAccounting is legal accounting software built on Salesforce that handles trust accounting and firm accounting in one system. Client trust ledgers, trust-to-operating transfers, and IOLTA interest tracking sit in the same place as your billing and general ledger, so your team isn't pulling data from separate tools to reconcile each month.

For firms with trust accounts in more than one state, keeping every account in one system makes it easier to reconcile each one on its own schedule and produce records quickly if a state bar asks.

Frequently Asked Questions About IOLTA Rules

Is IOLTA mandatory in all 50 states?

No. IOLTA is mandatory in 46 states and DC. Alaska, Kansas, Nebraska, and Wyoming have opt-out programs, where lawyers are enrolled unless they choose not to participate.

What does IOLTA stand for?

Interest on Lawyers' Trust Accounts. New York uses the name IOLA, for Interest on Lawyer Accounts.

Who runs IOLTA in each state?

Usually a bar foundation or a legal aid funding body. In some states it's the state bar itself, like the West Virginia State Bar, or a state agency created by law, like California's Legal Services Trust Fund Program.

Do banks report trust account overdrafts to the state bar?

In most states, yes. The ABA's 2019 chart lists overdraft notification rules in every state except Mississippi, South Dakota, and Texas. Under these rules, the bank tells the state's disciplinary authority when a trust account check is presented against insufficient funds.

How long do I have to keep IOLTA records?

ABA Model Rule 1.15 sets five years after the representation ends, and many states follow it. Some states set a different period, so check your state's version of Rule 1.15.

How often do I have to reconcile an IOLTA account?

It depends on the state, but many require at least a monthly reconciliation. Doing a three-way reconciliation every month meets or exceeds most state requirements.

Can a law firm have more than one IOLTA account?

Yes. Firms with offices in more than one state usually keep a separate IOLTA account for each state, and some firms keep more than one in the same state.

Can I open an IOLTA account at any bank?

No. The bank has to be eligible under your state's IOLTA program, which usually means it has agreed to pay a comparable interest rate and, in most states, to report overdrafts.

Conclusion

IOLTA is mandatory or opt-out in every state, so the real work for most firms isn't deciding whether to participate. It's knowing your state's program, using an eligible bank, reconciling on schedule, and keeping records for as long as your state requires. Firms with offices in several states have to do all of that for each account, under each state's rules.