How to Fill Out Michigan IOLTA Trust Account Registration + FAQs

The Michigan IOLTA Trust Account Registration is the form every Michigan-licensed attorney must file with the Michigan State Bar Foundation to enroll a client trust account that pools nominal or short-term client funds, with the interest remitted to fund civil legal aid under MRPC 1.15A. The registration tells the Foundation which bank holds your trust account, who the responsible attorney is, and authorizes your bank to send the net interest directly to the Foundation rather than to you or your clients.

Failure to register a trust account within 30 days of opening it can trigger an investigation by the Michigan Attorney Grievance Commission under MRPC 1.15B, and the Foundation reports that more than 9,000 active Michigan lawyer trust accounts are registered statewide, with a meaningful share of new registrations rejected each year for missing tax ID or signature errors.

This guide walks you through every line, every signature block, and every attachment so you can register correctly the first time.

  • 📝 What the IOLTA registration form asks for, line by line, in plain English
  • 🏦 How to coordinate with your bank using the MSBF Notice to Financial Institution
  • ⏰ Deadlines under MRPC 1.15A and the 30-day registration window
  • 🧾 Which tax ID to use and why MSBF’s EIN matters
  • ⚖️ How three real Michigan attorneys complete the form from start to finish

What the Michigan IOLTA Trust Account Registration Is and Who Must File It

The Michigan IOLTA Trust Account Registration, sometimes called the “Trust Account Notice” or “Enrollment Form,” is the joint attorney-and-bank document that opens an Interest on Lawyers Trust Accounts (IOLTA) account at an eligible financial institution approved by the Michigan State Bar Foundation. It identifies the lawyer or law firm holding the account, the bank branch where the funds sit, the account number, and the responsible attorney’s P-number issued by the State Bar of Michigan.

Every active Michigan attorney who receives client funds that are nominal in amount or held for a short period must place those funds in an IOLTA account, per MRPC 1.15A(a). That includes solo practitioners, partners, associates handling their own client funds, and out-of-state attorneys admitted in Michigan who handle Michigan client matters. Government lawyers, in-house counsel, and judges typically do not need an IOLTA, because they do not hold client trust funds.

Funds that are not nominal or short-term — for example, a $400,000 settlement that will sit for six months pending probate — go into a separate, client-specific interest-bearing trust account under MRPC 1.15A(b), and the interest belongs to the client. That separate account is not registered with the Foundation. The IOLTA registration covers only the pooled trust account.

The Foundation administers the program under authority delegated by the Michigan Supreme Court, and the net interest funds civil legal aid grants statewide. Annual compliance is certified each year on your State Bar of Michigan annual dues statement, where you check a box confirming that all client trust funds are held in compliance with MRPC 1.15A.

Before You Start: Documents and Information You Need

Gather everything below before you contact the bank or open the MSBF online enrollment portal, because missing items are the top reason registrations sit incomplete for weeks. The Foundation requires a clean match between your bar record, your bank’s records, and the form itself.

  • Your P-number. This is the State Bar of Michigan attorney identification number on your bar card; the Foundation cross-checks it against the active roster, and a typo bounces the form.
  • Your full legal name as it appears on your bar record. A nickname or initial mismatch with the SBM membership directory triggers a manual review.
  • Firm or sole-practitioner name and address. This must match the address of record on the bar’s annual dues statement.
  • The bank’s full legal name, branch address, and routing number. Pull this from a voided check or the bank’s account confirmation letter.
  • The IOLTA account number. Open the account first or have the banker assign a pending number; the form will not process without it.
  • MSBF’s federal tax identification number (EIN). The Foundation provides this on the W-9 substitute form so all interest is reported under MSBF’s EIN, not yours.
  • A voided check or bank letter on letterhead. This proves the account exists and shows the routing/account numbers in machine-readable form.
  • Signature authority documentation. If the firm signs, you need the partner or managing attorney’s name, P-number, and wet or e-signature.
  • A list of all attorneys whose client funds will flow through the account. Each attorney in the firm must be on file as a covered lawyer.
  • Your law firm’s own EIN or SSN. This goes on the firm’s books for bank reporting purposes only — not on the interest reporting line, which uses MSBF’s EIN.

Where to Get the Form and How to Access It

The official Michigan IOLTA registration form lives on the Michigan State Bar Foundation IOLTA forms page, and the Foundation accepts both online enrollment and a downloadable PDF. The current revision is dated 2024 and should be confirmed at the top right corner of any printed copy before submission.

You can access the form three ways. First, the online enrollment portal lets you complete the registration directly in your browser, attach a voided check, and route the bank-signature page to your banker by email. Second, the downloadable PDF can be printed, signed in ink by both the attorney and the bank officer, and mailed to MSBF at 306 Townsend Street, Lansing, MI 48933. Third, many banks on the eligible financial institutions list keep their own pre-filled IOLTA setup packets that include the MSBF notice; ask your branch banker for the IOLTA packet by name.

If you are switching banks or closing an account, use the Trust Account Change Notice instead of opening a new registration. Submitting a new registration when you should have submitted a change notice creates duplicate records that the Foundation must merge by hand.

Step-by-Step: How to Fill Out the Michigan IOLTA Trust Account Registration Line by Line

The form is divided into three logical sections: the Attorney/Firm Information block, the Account Information block, and the Notice to Financial Institution block, which is the bank’s signature page. Complete the form in order, top to bottom, because the bank’s portion depends on the account number you list above.

Field 1: Date of Registration

The date field at the top right asks when you are completing the form, not when the account was opened. Write the date in MM/DD/YYYY format using slashes and four-digit years.

For example, Maria Lopez writes 03/14/2026 on the day she sits down with her banker to open her solo practice IOLTA. If you complete the form on one day and your banker signs it three days later, use your signing date here and let the bank use its own date in the bank signature block.

A common mistake is back-dating this field to the day the account was opened at the bank. The consequence is a mismatch with the bank’s signature date, which makes the Foundation question whether the form was prepared after the fact and may delay processing by up to two weeks.

A common misconception is that this field is the “effective date” of IOLTA enrollment. It is not — enrollment is effective when MSBF receives and processes the complete form, not the date you write here.

Field 2: Attorney Name (Last, First, Middle)

This field asks for the responsible attorney’s full legal name exactly as it appears on the State Bar of Michigan record. Write last name first, then a comma, then first name, then middle name or initial, all in standard mixed case.

For example, Carlos R. Mendoza enters Mendoza, Carlos Ramon because his middle name is on file with the bar, even though he usually signs documents as Carlos R. Mendoza. The Foundation cross-references this against the SBM directory, so the name must match.

A nuance arises for attorneys who recently changed their name through marriage or court order. If the bar has not yet processed the name change update, use your old name on the IOLTA form and update the bar record first, then file an amendment.

A common mistake is using a nickname like “Bob” instead of “Robert.” The consequence is a P-number mismatch flag, and the Foundation will hold the registration until you submit a corrected form.

A common misconception is that the firm name can replace the attorney name here. It cannot — every IOLTA registration must name a single responsible attorney, even at a 200-lawyer firm.

Field 3: P-Number

The P-number field asks for your seven-character State Bar of Michigan identifier, which always begins with a capital P followed by six digits. Write it as P12345 with no spaces and no hyphens.

For example, Janet Whitcomb, a 22-year family law practitioner, enters P39102 exactly as printed on her bar card. If you do not know your P-number, look it up free on the SBM member directory.

A nuance is that newly admitted attorneys receive a P-number at swearing-in, and you cannot register an IOLTA before admission. If you opened the account in anticipation of admission, the bank can hold the form until your P-number arrives, then complete this field.

A common mistake is entering the P-number as just six digits without the leading P. The consequence is automatic rejection by the Foundation’s database, which validates the format.

A common misconception is that paralegals or office managers can list their own ID here. Only a licensed Michigan attorney’s P-number is valid on this line.

Field 4: Firm or Practice Name

This field asks for the legal name of the law firm or sole proprietorship that owns the trust account. Write the full registered name including PLLC, PC, LLP, or other entity suffix.

For example, Aisha Brown writes Brown Family Law PLLC because that is the name on her LARA business registration. A solo who practices under her own name writes Aisha Brown, Attorney at Law.

A nuance applies when two or more attorneys share office space but bill separately. Each separate practice files its own IOLTA registration with its own firm name; you do not combine them on one registration.

A common mistake is using a “doing business as” name that differs from the bank’s records. The consequence is that the bank rejects the signature card because the firm name on the registration does not match the account title.

A common misconception is that adding a new partner requires a new registration. It does not, as long as the firm legal name and EIN stay the same; you only file a Trust Account Change Notice.

Field 5: Firm Mailing Address

The address field asks for the street address where the firm receives mail. Use a single line for street, then city, state, and ZIP on the next line in the format City, MI ZIP.

For example, Carlos Mendoza writes 842 Woodward Avenue, Suite 300 on the first line and Detroit, MI 48226 on the second. Use the suite number to ensure timely delivery.

A nuance is the P.O. Box question. The Foundation accepts a P.O. Box for the mailing address, but the bank will still require a physical street address on its signature card; provide both if asked.

A common mistake is listing a home address that is different from the bar’s address of record. The consequence is that the Foundation’s annual compliance mailing goes to the wrong place and you miss reminders.

A common misconception is that this address must match your bank’s branch address. It does not — this is your mailing address, not the bank’s.

Field 6: Telephone and Email

This field asks for a direct phone number and a working email address where the Foundation can reach you about the account. Use (XXX) XXX-XXXX format for the phone number.

For example, Janet Whitcomb writes (248) 555-0142 and jwhitcomb@whitcomblaw.com — her firm email, not a personal Gmail. The Foundation sends interest reports and compliance notices to this email.

A nuance is that solo practitioners often use a single email for everything; that is fine, but make sure spam filters allow mail from iolta@msbf.org.

A common mistake is listing a paralegal’s email. The consequence is that compliance notices go to staff who may not understand the urgency, and a deadline can pass unread.

A common misconception is that this contact info is for the bank to use. It is not — the bank uses the firm address on its own records and contacts you separately.

Field 7: Financial Institution Name

This field asks for the legal name of the bank or credit union holding the IOLTA. Write the full name as it appears on the bank’s eligible institutions list, not a colloquial nickname.

For example, Maria Lopez writes Fifth Third Bank, National Association, not just Fifth Third. The full name matches the Foundation’s records and the bank’s W-9.

A nuance is that not every bank in Michigan is an eligible institution. If your preferred bank is not on the list, you must move the account to one that is, or ask the bank to apply for eligibility.

A common mistake is using a holding company name instead of the chartered bank. The consequence is that the bank’s signature block does not match the institution name above, and the Foundation rejects the form.

A common misconception is that any FDIC-insured bank automatically qualifies. Eligibility requires a separate agreement with MSBF on rate parity and remittance, so always check the published list.

Field 8: Branch Address

The branch address field asks for the specific branch where the account is opened, including street, city, state, and ZIP. Some forms allow a regional office address if the bank centralizes IOLTA processing.

For example, Carlos Mendoza opens his account at the Fifth Third Bank, 1 Campus Martius, Detroit, MI 48226 branch and lists that exact address. If the bank’s IOLTA team is in Cincinnati, list the Detroit branch where you signed paperwork, not the back-office.

A nuance is online-only banks. If the eligible institution operates without branches, write Online Account — [Bank Headquarters Address].

A common mistake is leaving this field blank because the account was opened over the phone. The consequence is that the form is incomplete and the Foundation cannot route the bank confirmation.

A common misconception is that the branch address must match your firm address. It does not need to match anything except the bank’s actual branch.

Field 9: IOLTA Account Number

This field asks for the full account number assigned by the bank. Write every digit, with no spaces or dashes, exactly as it appears on the signature card or voided check.

For example, Aisha Brown writes 7382910445 from her voided check. Double-check against the signature card before submitting because transposed digits are the single most common error on the form.

A nuance applies when the bank uses internal sub-account numbers. Use the customer-facing number on the check, not the GL or sub-ledger number.

A common mistake is using the routing number in this field instead of the account number. The consequence is that the bank flags an invalid account on its end and refuses to remit interest.

A common misconception is that the account number can be added later. It cannot — MSBF will not process a registration without an active account number.

Field 10: Account Title

The account title field asks for the exact name on the account at the bank, which under MRPC 1.15A must include the words IOLTA, Client Trust Account, or Trust Account. Write it exactly as the bank prints it on the signature card.

For example, Brown Family Law PLLC IOLTA Client Trust Account is the proper title for Aisha Brown’s account. Without the words Trust or IOLTA, the account is not a valid trust account under the rules.

A nuance is that some banks shorten the title to fit a 32-character limit. Work with your banker to keep at least the word IOLTA in the title.

A common mistake is titling the account in the lawyer’s personal name. The consequence is a violation of MRPC 1.15(d) and potential commingling discipline by the AGC.

A common misconception is that the account title can be the firm name only. It cannot — Michigan rules require Trust or IOLTA in the title.

Field 11: Tax Identification Number for Interest Reporting

This field asks for the EIN that the bank should use to report interest. The correct entry is MSBF’s EIN, which the Foundation provides on a substitute W-9 — it is not your firm’s EIN.

For example, Maria Lopez writes the MSBF EIN exactly as printed on the substitute W-9 the Foundation provides, so all interest is reported to MSBF and not to her or her clients.

A nuance is that the bank’s standard new-account workflow auto-populates the firm’s EIN. You must override this and physically attach MSBF’s substitute W-9 to the account file.

A common mistake is letting the bank use the firm EIN. The consequence is that the IRS issues a 1099-INT to the firm, creating a phantom income tax problem and a violation of MRPC 1.15A.

A common misconception is that you need MSBF’s permission each year to use its EIN. You do not — the substitute W-9 is a standing authorization that travels with the account.

Field 12: Notice to Financial Institution — Bank Officer Signature

The bank signature block asks the bank to acknowledge that the account is an IOLTA, that interest will be remitted at least quarterly to MSBF net of allowable fees, and that the bank will report under MSBF’s EIN. The bank officer prints name, title, signs, and dates this block.

For example, the Fifth Third branch manager signs Patricia Lin, Branch Manager, dates 03/17/2026, and applies the bank stamp. Without this signature, the form is incomplete.

A nuance is that some large banks route the signature to a centralized IOLTA team rather than the branch. That is acceptable as long as the signer has bank authority to bind the institution.

A common mistake is the lawyer signing this block on behalf of the bank. The consequence is automatic rejection because only an authorized bank officer may bind the institution to the remittance terms.

A common misconception is that the bank’s signature is optional if the bank is already on the eligible list. It is not — every account requires its own bank signature, regardless of prior eligibility.

Field 13: Attorney Signature and Date

The attorney signature block asks the responsible attorney to certify that the information is true and that client funds will be handled in compliance with MRPC 1.15, 1.15A, and 1.15B. Sign in ink (or with a compliant e-signature) and date in MM/DD/YYYY format.

For example, Janet Whitcomb signs her usual cursive signature and dates 03/14/2026 the same day she completed the rest of the form.

A nuance is that firms may have a managing attorney sign on behalf of the firm, but that attorney’s P-number must appear on the form and that attorney becomes the responsible lawyer of record.

A common mistake is using a typed name instead of a signature on a paper form. The consequence is rejection for lack of a wet or compliant electronic signature under MCL 450.831 et seq. (Michigan UETA).

A common misconception is that the signature can be added by staff after submission. It cannot — the signature must be present at submission.

Three Filled-Out Examples Using Real Scenarios

Scenario 1: Maria Lopez, New Solo Practitioner

Maria was admitted to the Michigan bar in February 2026 and is opening her first IOLTA at Fifth Third Bank.

Form Section What Maria Enters
Date of Registration 03/14/2026
Attorney Name Lopez, Maria Elena
P-Number P88421
Firm Name Maria E. Lopez, Attorney at Law PLLC
Firm Address 15 Kercheval Avenue, Suite 210, Grosse Pointe Farms, MI 48236
Financial Institution Fifth Third Bank, National Association
Account Number 7740028193
Account Title Maria E. Lopez PLLC IOLTA Client Trust Account
Tax ID for Interest MSBF EIN per substitute W-9
Attorney Signature Maria signs in ink, dates 03/14/2026

Scenario 2: Carlos Mendoza, Out-of-State Attorney Joining a Detroit Firm

Carlos is licensed in Ohio and was admitted in Michigan in January 2026 to handle Michigan real estate closings for his Detroit firm.

Form Section What Carlos Enters
Date of Registration 01/22/2026
Attorney Name Mendoza, Carlos Ramon
P-Number P88974
Firm Name Riverfront Title & Closing PLLC
Firm Address 842 Woodward Avenue, Suite 300, Detroit, MI 48226
Financial Institution Comerica Bank
Account Number 2210558640
Account Title Riverfront Title PLLC IOLTA Trust Account
Tax ID for Interest MSBF EIN per substitute W-9
Bank Officer Signature Patricia Lin, VP, Comerica Detroit Main, 01/24/2026

Scenario 3: Janet Whitcomb, 22-Year Family Lawyer Switching Banks

Janet is moving her existing IOLTA from PNC to Independent Bank because PNC raised maintenance fees.

Form Section What Janet Enters
Form Used Trust Account Change Notice, not a new registration
Date of Change 03/14/2026
Attorney Name Whitcomb, Janet Marie
P-Number P39102
Old Bank and Account PNC Bank, Account 4488120093
New Bank and Account Independent Bank, Account 9921004488
New Account Title Whitcomb Family Law PC IOLTA Trust Account
Tax ID for Interest MSBF EIN per substitute W-9
Effective Date 04/01/2026
Attorney Signature Janet signs and dates 03/14/2026

How to File the Completed Form

You can file the Michigan IOLTA registration through three channels, and you should keep proof of submission no matter which one you choose. The Foundation processes all three within five to ten business days.

Online portal. Submit through the MSBF online enrollment system. There is no fee. Pay nothing — IOLTA registration is always free. Processing takes about five business days, and you receive an automatic email confirmation that you should save as proof of filing.

Mail. Print the PDF form, sign it, and mail it to Michigan State Bar Foundation, 306 Townsend Street, Lansing, MI 48933. There is no filing fee. Use certified mail with return receipt for proof of filing; processing takes seven to ten business days from receipt.

Through your bank. Many eligible financial institutions submit the form on your behalf as part of their IOLTA setup packet. There is no fee, and the bank typically faxes or emails the completed form to MSBF within 48 hours of account opening. Ask your banker for a copy of the transmittal as your proof of filing.

You should also keep a scanned PDF of the signed form, the voided check, and the MSBF substitute W-9 in your firm’s compliance file for at least seven years, consistent with MRPC 1.15(b)(2) recordkeeping requirements.

What Happens After You File

Once MSBF processes the registration, the Foundation sends a written confirmation to the email address on the form, listing the account number, the firm name, and the effective date of enrollment. Keep this confirmation in your trust account file because it is the cleanest evidence of compliance if the Attorney Grievance Commission ever audits.

The bank begins remitting net interest to MSBF on a monthly or quarterly cycle, depending on the institution’s standard schedule, and the Foundation issues a remittance report to the firm at least annually showing how much interest the account generated. You owe no tax on this interest because it is reported under MSBF’s EIN, not yours.

Each year on your State Bar of Michigan annual dues statement, you will check a box certifying that all client trust funds are held in compliance with MRPC 1.15A. That annual certification, plus the original registration, is what closes the compliance loop.

If anything changes — bank, address, account number, responsible attorney, or firm name — you must file a Trust Account Change Notice within 30 days under MRPC 1.15A.

Mistakes to Avoid When Filling Out the Form

  • Using your firm’s EIN on the interest reporting line — the IRS will issue a 1099-INT to the firm and create a tax mess.
  • Leaving off the P-number’s leading “P” — the form fails database validation and gets rejected.
  • Misspelling the firm name — the bank’s signature card will not match the registration, delaying setup.
  • Skipping the word “IOLTA” or “Trust” in the account title — this is a direct MRPC 1.15(d) violation.
  • Using a personal email — compliance notices may be missed and you can blow the annual recertification.
  • Listing a holding-company bank name — the bank is not on the eligible list under that name and the form is rejected.
  • Letting staff sign for the attorney — only the responsible attorney’s signature binds the registration.
  • Letting staff sign for the bank — only an authorized bank officer can bind the institution.
  • Forgetting to attach the voided check — without it, the Foundation cannot verify the account number.
  • Filing a new registration when switching banks — you should file a Change Notice instead, which prevents duplicate records.
  • Back-dating the registration date — a date mismatch with the bank’s signature triggers manual review.
  • Using an ineligible bank — interest cannot be remitted, and you fall out of compliance until you move the account.

Do’s and Don’ts

  • Do download the current version of the form from the MSBF forms page every time you register, because revisions happen and an old form may lack required fields.
  • Do confirm your bank is on the eligible institutions list before you open the account, because moving the account later is a hassle.
  • Do use MSBF’s substitute W-9, because that is the only way the IRS reports interest correctly.
  • Do save the email confirmation, because it is your proof of compliance for the AGC.
  • Do file a Change Notice within 30 days of any account change, because waiting risks a compliance lapse.
  • Do include “IOLTA” or “Trust” in the account title, because the rule requires it and the bank cannot fix it later without a new signature card.

  • Don’t commingle firm operating funds in the IOLTA, because that violates MRPC 1.15(d) and is a fast track to discipline.

  • Don’t put non-nominal client funds into the IOLTA, because those belong in a separate interest-bearing account for the client.
  • Don’t sign the bank’s portion yourself, because only an authorized bank officer can bind the institution.
  • Don’t use a nickname instead of your legal name, because it bounces the cross-check with the SBM directory.
  • Don’t delay registration past 30 days, because that window is built into MRPC 1.15A.
  • Don’t assume your bank handles registration silently, because some do and some do not — confirm in writing.

Pros and Cons of Filing on Your Own vs. With Help

  • Pro of filing yourself: It is free and fast for a single account, especially online through the MSBF portal.
  • Pro of filing yourself: You learn the rules first-hand, which helps with future audits.
  • Pro of filing yourself: You control timing and avoid waiting on a third party.
  • Pro of filing yourself: You build a direct relationship with MSBF staff for future questions.
  • Pro of filing yourself: You catch errors immediately because you see every field.

  • Con of filing yourself: A single field error can cost two weeks of processing time.

  • Con of filing yourself: New attorneys may not know which EIN belongs where.
  • Con of filing yourself: Multi-account firms benefit from a centralized compliance officer or outside CPA.
  • Con of filing yourself: You bear sole responsibility if the AGC asks for proof.
  • Con of filing yourself: Coordinating with the bank’s signature can take longer than expected.

FAQs

Do I need an IOLTA if I never hold client funds?

No. Attorneys who never receive client funds — such as in-house counsel or government lawyers — are not required to maintain an IOLTA, but you must still certify compliance on your annual dues statement.

Can I use my firm’s EIN on the interest reporting line?

No. The bank must report interest under the Michigan State Bar Foundation’s EIN, not your firm’s, using MSBF’s substitute W-9, or you will receive an erroneous 1099-INT.

Does it cost anything to register?

No. IOLTA registration is free at every channel — online, mail, and bank-submitted — and the Foundation never charges a filing fee.

How fast must I register after opening the account?

Yes, within 30 days under MRPC 1.15A; the Foundation strongly recommends filing the same day the account opens to avoid forgetting.

Do I write my P-number with or without the “P”?

Yes, always include the capital P, formatted as P12345, because the database rejects six-digit-only entries.

Should the account title include the word “IOLTA”?

Yes. The account title must include “IOLTA,” “Client Trust Account,” or “Trust Account” so the bank treats it correctly under MRPC 1.15(d).

Can a paralegal sign the attorney signature block?

No. Only the responsible licensed Michigan attorney with an active P-number may sign the certification.

Do I need to register a separate interest-bearing client account?

No. Non-nominal, long-term client funds go into a client-specific interest-bearing account that pays interest to the client, and that account is not registered with MSBF.

What if my bank is not on the eligible institutions list?

No, you cannot use that bank for IOLTA; you must move the account to an eligible institution or ask your bank to apply for eligibility with MSBF.

Do I need to re-register every year?

No. Registration is a one-time act per account; annual compliance is certified on your State Bar dues statement instead.

Can I file the registration before I am admitted?

No. You need an active P-number, which you receive at admission, before MSBF can process the form.

Do I file a new registration when I switch banks?

No. Use the Trust Account Change Notice instead, which prevents duplicate records and keeps the historical account on file.

Is electronic signature acceptable?

Yes. Compliant e-signatures under Michigan UETA at MCL 450.831 are accepted by both MSBF and most eligible banks.

What happens if I never register but hold client funds?

No lawyer should risk this — failing to register is a violation of MRPC 1.15A and can lead to AGC investigation and discipline up to suspension.