Running a Michigan business under a name other than your legal name requires a formal state registration. Filing a DBA in Michigan means registering what the state officially calls an assumed name. Where you file depends entirely on your business structure. This guide covers who files where, what each path costs, how long approval takes, and how to renew, amend, or cancel your registration.
What is a DBA in Michigan?
In Michigan, a DBA—also called an assumed name—is the name a business uses publicly when that name differs from its legal name. Sole proprietors, partnerships, LLCs, and corporations all use assumed names to brand their businesses. An assumed name registration does not create a new legal entity, and it does not provide trademark protection or personal liability protection.
Michigan law uses "assumed name" exclusively. Terms like "fictitious name," "trade name," or "doing business as" appear in everyday conversation and in other states' statutes, but Michigan's Assumed Name Act (MCL § 445.1 et seq.) uses "assumed name" as the operative legal term. If you see "DBA" or "fictitious name" on a form or third-party website, treat it as a synonym.
If you're a sole proprietor named Jane Smith who wants to run a bakery called "Great Lakes Sweets," you must register "Great Lakes Sweets" as your assumed name before using it on signage, bank accounts, or contracts. Registration doesn't shield your personal assets from business debts, doesn't give you exclusive statewide rights to the name, and doesn't substitute for a trademark if you want enforceable name protection.
Who needs a Michigan assumed name?
The trigger is simple: if you want to operate publicly under a name that differs from your legal name or your registered entity's name, you must register that name before using it.
- Sole proprietors branding their business. If you're a freelance photographer named Marcus Johnson who wants to advertise as "Pure Light Photography," you must register that name with your county clerk. Operating under your legal name alone requires no registration.
- General partnerships using a shared business name. When two or more partners run a business under a name other than the combined surnames of all partners, Michigan law requires an assumed name filing.
- LLCs or corporations marketing under a different brand. If your LLC is registered as "Northbrook Holdings LLC" but you operate a restaurant called "The Copper Kettle," you need an assumed name for the brand.
- Businesses launching a new product line or service brand. A single LLC can hold multiple assumed names, making this practical for expanding into a distinct market without forming a separate entity.
If your LLC's or corporation's registered legal name is already the exact name you use publicly, a separate assumed name filing isn't necessary.
Where to file a Michigan DBA: LARA, county clerk, or DIFS?
Informal structures like sole proprietorships and general partnerships register at the county level. Formal entities like LLCs and corporations register with LARA. Insurance licensees have a third path through DIFS.
| Business type | Where to file | Filing method |
|---|---|---|
| Sole proprietor | County clerk (county where business operates) | In person or by mail |
| General partnership | County clerk | In person or by mail |
| LLC | LARA (MiBusiness Registry) | Online |
| Corporation | LARA (MiBusiness Registry) | Online |
| Limited partnership | LARA (MiBusiness Registry) | Online |
| Insurance licensee | DIFS + LARA | Online / form submission |
Sole proprietors and general partnerships: county clerk
Sole proprietorships and partnerships file a Certificate of Persons Conducting Business Under an Assumed Name with the county clerk in every county where they do business. MCL § 445.1 et seq. requires this.
- You must file in any county where your business conducts or transacts business.
- Many counties offer specific forms, such as Wayne County's Assumed Name Form and Kent County's Business Registration Form. If your county doesn't provide its own form, contact the clerk's office directly.
- Signatures must be witnessed by a notary public. Many county clerk offices will notarize your form on the spot if you appear in person with valid photo ID.
- The filing fee varies by county but is generally $10–$20. Confirm the exact fee before submitting.
LLCs, corporations, LPs, and other registered entities: LARA
Registered entities submit a Certificate of Assumed Name through Michigan's MiBusiness Registry. The filing is entirely online. No notarization is required.
- The state filing fee is $10 for corporations and $25 for LLCs. Verify current fees with LARA before filing.
- You'll need your entity's name and entity ID number from your formation documents.
- Two or more entities can use the same assumed name if engaged in a partnership or joint venture (MCLA § 450.1217(2)), but each must file its own Certificate of Assumed Name.
Insurance licensees: DIFS (plus LARA)
If you hold a Michigan insurance license and want to operate under an assumed name, registering with LARA alone isn't enough. You must also update your license record through the Michigan Department of Insurance and Financial Services (DIFS).
Individual licensees submit an FIS 0201 Individual Insurance Licensee Registration or Cancellation of DBA form. Business entity licensees register through the DIFS Insurance Licensing Online Services (ILOS) web page. Until you complete both steps, you cannot legally transact insurance business under the assumed name.
How to file a DBA in Michigan: step-by-step
Filing for an assumed name in Michigan is a necessary administrative procedure for business owners who wish to operate under a brand distinct from their legal entity name. This process ensures that the public can identify the individuals or entities behind a business, maintaining transparency and legal compliance within the state's commercial landscape.
Step 1: Search for name availability
Check the LARA Business Entity Search first—it covers legal business names and assumed names for all state-registered entities. County records are a separate system. Of Michigan's five most populous counties, only Oakland County offers an online business name search; for most others, contact the county clerk directly. A name absent from the LARA database could still be registered with a county clerk.
Also run a trademark search through the U.S. Patent and Trademark Office's database. State-level name availability and federal trademark clearance are two separate questions.
Step 2: Gather your required information
Before beginning the registration process, ensure you have collected the specific details required by your filing agency. The documentation needed varies depending on whether you are registering as an individual or through a formal business entity, so verify the list applicable to your specific situation below.
For sole proprietors and general partnerships filing with a county clerk:
- Full legal name(s) and home or business address
- The assumed name you want to register
- The county or counties where your business operates
- A brief description of the nature of your business
- Valid photo ID (required for notarization)
For LLCs, corporations, and other registered entities filing with LARA:
- Your entity's exact registered legal name and entity ID number
- The assumed name you want to register
- A name and address where LARA will mail your certificate (if omitted, it goes to your registered agent)
- The title and name of the authorized person signing the filing
- If filing as part of a partnership or joint venture, the names and ID numbers of all entities adopting the assumed name
Step 3: File with the correct agency
Once you have gathered all necessary information and determined your filing requirements, you are ready to submit your registration to the appropriate authority. This step formalizes your business name with the state or county, ensuring your records are complete and compliant with Michigan regulations.
- County filers: Get the assumed name certificate form from your county clerk—many post it online. Complete the Assumed Name Registration or Co-Partnership Registration form, have it notarized, and submit in person or by mail with the filing fee. Bring state-issued photo ID.
- LARA filers: Log in through a MiLogin for Business account, select the Certificate of Assumed Name option, complete the remaining fields (the first section is pre-filled with your entity information), select your delivery method, and pay by credit card. No notarization required.
- DIFS filers: Complete the DIFS assumed name form and submit as directed at michigan.gov/difs. This is in addition to, not instead of, any applicable LARA filing.
Step 4: Receive confirmation and begin using the name
County filers receive a stamped certificate from the clerk's office—some issue it on the spot for in-person filings; mail submissions take longer. LARA filers receive confirmation through the MiBusiness Registry, by email if selected during filing.
Use the assumed name on signage, invoices, contracts, and bank accounts only after receiving confirmation. Using the name before registration is approved creates legal exposure and can complicate banking relationships that require proof of registration.
Michigan DBA fees and processing times
| Filing path | Typical fee | Processing time | Notes |
|---|---|---|---|
| County clerk (sole proprietor / general partnership) | ~$10–$20 per county | 1–2 weeks; varies by county | Some counties process same-day in person |
| LARA—LLC | $25 | A few business days (online) | No notarization required |
| LARA—Corporation or LP | $10 | A few business days (online) | No notarization required |
| DIFS (insurance licensees) | Verify with DIFS | Varies | Required in addition to any applicable LARA filing |
Always verify current fees directly with LARA or your county clerk before submitting.
County fees typically include at least two certified copies of your assumed name certificate. Banks often require a certified copy when you open a business checking account, so having them from the start saves a later request. Filing in Barry County costs $10; Branch County costs $16. A LARA assumed name registration is valid for five years, expiring December 31 of the fifth full calendar year following registration.
LARA expedited processing options
Expedited processing is available for mail or in-person LARA filings (not online submissions):
- 24-hour service: $50
- Same-day service: $100 (submit by 1 p.m.)
- Two-hour service: $500 (submit by 3 p.m.)
- One-hour service: $1,000 (submit by 4 p.m.)
For speed, online filing through the MiBusiness Registry Portal is typically the most straightforward path.
A practical note on total cost
If you operate in multiple counties, you need a separate filing and fee in each one. Michigan has no publication requirement for assumed name registrations, which keeps costs lower than in states requiring newspaper notice. Renewal every five years costs the same as the original filing fee.
How to renew, amend, or cancel a Michigan assumed name
Maintaining your business name registration is a key part of your ongoing legal obligations in Michigan. Whether you need to update your records, extend your registration, or wind down your business name, the following processes outline how to handle these administrative tasks.
Renewing your Michigan assumed name
Registrations must be renewed every five years. The deadline is December 31 of the fifth full calendar year after your original registration. Miss it and the name can be claimed by someone else, though some county clerk offices send a renewal notice before expiration.
- LARA filers: Renew online through the Corporations Online Filing System. Fees are the same as registration: $10 for LPs and corporations, $25 for LLCs.
- County filers: Renew through your county clerk's office using the same form and fee as your original registration.
If you operate in multiple counties, renew in each one separately.
Amending your Michigan assumed name
When information on your original certificate changes—address, business description, clerical error—file an amendment rather than a new registration. County-level amendment forms vary; Calhoun County, for example, lists an Assumed Name Amendment Certificate among accepted forms. Branch County charges a separate flat fee for address or ownership updates. Check with your county clerk for the current form, fee, and submission method. LARA filers handle amendments through the MiBusiness Registry.
If you need a completely different assumed name rather than a correction, file a new Certificate of Assumed Name and pay the registration fee again.
Canceling your Michigan assumed name
If your business is closing or you've rebranded, formally cancel your assumed name rather than letting it lapse. Active registrations can create confusion and complicate dissolution paperwork.
LARA filers can terminate through the Corporations Online Filing System or by submitting a Certificate of Termination of Assumed Name. The fee is $10 for LPs and corporations and $25 for LLCs. County filers submit a Certificate of Discontinuance of Business Under an Assumed Name through their county clerk at the same fee as registration.
Canceling your assumed name does not dissolve the underlying legal entity. Closing an LLC or corporation requires a separate dissolution filing with LARA.
Michigan DBA vs. LLC: key differences
| DBA (assumed name) | LLC | |
|---|---|---|
| What it creates | A name registration only | A separate legal entity |
| Personal liability protection | None | Yes, when properly maintained |
| Cost in Michigan | $10–$25 | Higher—state filing fees, operating agreement, ongoing compliance |
| Ongoing requirements | Renew every 5 years | Annual statements, registered agent, operating agreement |
| Can an LLC also have one? | N/A | Yes |
A DBA does not shield your personal assets from business debts or lawsuits. If someone sues your sole proprietorship, your personal savings, vehicle, and home are all potentially reachable. An LLC creates a legal wall between business obligations and personal finances—but only if you maintain that separation through separate bank accounts, consistent recordkeeping, and proper use of the entity structure.
Registering an assumed name costs $10–$25 and requires minimal paperwork. Forming an LLC means filing articles of organization, drafting an operating agreement, designating a registered agent, and staying current on annual filings. The two options aren't mutually exclusive: an LLC can register a DBA alongside its legal entity name.
How to look up a DBA in Michigan
Search the MiBusiness Registry for assumed names registered by LLCs, corporations, and other formal entities. Then check with the relevant county clerk for sole proprietor and general partnership registrations—those records are not in the state database. The search is free and requires no account.
- Go to the MiBusiness Registry at mibusinessregistry.lara.state.mi.us.
- Search by business name or entity ID. Use the "Advanced" tab to refine results. From an entity's record, select the "Assumed Names" button to see all assumed names that entity operates under.
- Check county clerk records for sole proprietors and general partnerships. In larger counties like Wayne, Oakland, or Kent, records are usually digitized.
- Check DIFS for insurance licensee assumed names. That database is maintained separately from LARA.
Common Michigan DBA mistakes and rejection reasons
While the registration process is generally straightforward, paying attention to specific details can help prevent unnecessary delays or rejections. The following points highlight common errors that applicants should aim to avoid when preparing their filings.
- Choosing a name too similar to one already registered. County clerks can reject any assumed name likely to mislead the public or cause confusion. LARA applies the same standard. A distinguishable name has a different sequence of letters or numbers from all active business names. Entity suffixes like "LLC" or "Corp." do not make a name distinguishable—"Great Lakes Sweets" and "Great Lakes Sweets LLC" are treated as the same name.
- Including prohibited or restricted words without authorization. You cannot use words easily confused with government agencies (FBI, Treasury, Department of Justice) or words implying banking, insurance, surety, or trust functions without approval from the relevant agencies. LARA publishes a full restricted words list.
- Including an entity identifier that doesn't match your structure. You cannot include "LLC" in your assumed name unless your business is actually an LLC. The same applies to "Corp.," "Inc.," "LLP," and similar designations.
- Filing with the wrong agency. LLCs, corporations, and limited partnerships file with LARA. Sole proprietors and general partnerships file with their county clerk. Filing in the wrong place means starting over.
- Submitting incomplete information. Missing your entity ID number, omitting a business address, or leaving the nature-of-business field blank are among the most common reasons applications stall or get rejected.
- Operating under a lapsed assumed name. If your registration expires and you continue using the name without renewing, you are operating without legal authorization, and the name may be claimed by someone else.
Michigan DBA FAQs
Does registering a Michigan assumed name protect my business name statewide?
No. It establishes your right to use the name for business purposes, but another business in a different county can register the same name. For enforceable statewide or national protection, you need a federal or state trademark registration.
Can two businesses use the same assumed name in Michigan?
Yes, potentially. One business could register a name with LARA while another registers it with a county clerk, or two businesses could register it in different counties. Search both the MiBusiness Registry and relevant county records before filing.
Does a Michigan DBA give me a separate tax ID number?
No. You continue using your existing tax identification number—your Social Security number as a sole proprietor, or your EIN for a registered entity. Obtaining a new EIN is a separate IRS process unrelated to the assumed name filing.
Do I need a Michigan assumed name if I'm operating as a sole proprietor under my own full legal name?
No. The requirement applies only when the name you use publicly differs from your legal surname. "Jane Smith Consulting" requires no filing; "Great Lakes Consulting" does.
How do you get a DBA in Michigan?
Search the MiBusiness Registry and relevant county records to confirm availability, then file with the correct agency. Sole proprietors and general partnerships file with their county clerk. LLCs, corporations, and limited partnerships file online through LARA's MiBusiness Registry. Pay the applicable fee ($10–$20 at the county level, $10–$25 through LARA) and begin using the name once you receive confirmation.
How often do you have to renew your DBA in Michigan?
Every five years. The renewal deadline is December 31 of the fifth full calendar year after your original registration. Missing the deadline allows the name to become available to others.
How do I look up a DBA in Michigan?
Search the MiBusiness Registry at mibusinessregistry.lara.state.mi.us for assumed names held by registered entities. For sole proprietor and general partnership assumed names, contact the county clerk in the relevant county. Insurance licensee assumed names are maintained separately by DIFS.
How long does it take for a DBA to be approved in Michigan?
LARA online filings typically take a few business days, with some receiving near-immediate confirmation. County clerk processing varies—some process same-day for in-person filings; others take one to two weeks. Expedited LARA processing (24-hour through one-hour) is available for mail and in-person submissions at additional cost.
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