DBA - Doing Business As

Registering a Business name in Ingham County protects the business name in Ingham County only.

The certificate expires after five (5) years.

If a DBA/Co-Partnership is not renewed, the name becomes available for someone else's use. 

All persons listed on the DBA/Co-Partnership form must provide their full names and addresses. DBA/Co-Partnership/Dissolution forms may be submitted in person or by mail. If you decide to file a DBA in person, all persons listed as owners must be present at the time of filing and must present a state issued picture ID (drivers license or ID card). If you decide to file a Co-Partnership in person, at least one person listed as owners must be present to sign and certify all other signatures at the time of filing and must present a state issued picture ID (drivers license or ID card). All signatures must be notarized if the forms are going to be submitted by mail.

The fee to file a DBA/Co-Partnership/Dissolution form is $10.00. We do not charge to change the address of a business; however, if there are multiple owners, all must be present to sign the form with the new address. 

The fee for additional certified copies of any business filing is $2.00 per copy. 

We accept cash (in office only), check, money order, MasterCard and Visa as form of payment. Please make checks payable to the Ingham County Clerk.

Certificate of Persons Conducting Business Under an Assumed Name (DBA) Printable Form 

(form can be used to register a New Business or Renew a Business)

Co-Partnership Printable Form

Dissolution of Co-Partnership or Business Form

Ingham County has a Regulation Eliminating Smoking in Public and Private Work Sites.

Visit the Ingham County Health Department 
to review the Regulation and determine if it applies to your business.

For information regarding Corporations/LLC

Please call the Bureau of Commercial Services at: (517) 241-6470.

You may write to them at: You may visit their office at:

Michigan Department of Licensing and Regulatory Affairs 2501 Woodlake Circle
Bureau of Commercial Services - Corporation Division Okemos MI 48864
PO Box 30054
Lansing, Michigan 48909

To conduct a search of Corporation Business names in Michigan click here 

Contact Information

BARB BYRUM, County Clerk

Mason Courthouse
341 S. Jefferson, PO Box 179
Mason MI 48854

Veterans Memorial Courthouse 
313 W. Kalamazoo, First Floor
Lansing MI 48933

Phone: (517) 676-7201
Fax: (517) 676-7254

Hours of Operation:  8:00 a.m. to 5:00 p.m. *
Monday thru Friday

* The office may close for a short time during normal business hours due to occasional staff shortages.


Please be advised that as of Monday, August 1, 2016, there will be non-refundable service fees applied to all credit card transactions conducted with the Ingham County Clerk’s Office.

As of that date, my office will be able to accept Visa, MasterCard, Discover, American Express and Debit Cards.
The service fee schedule below reflects the fee for each transaction amount, whether the credit card is swiped or if the card information is manually entered.

Credit Card Service Fee Schedule (as of June 30, 2017):

Transaction                         Amount                            Fee

$0.01 >                                 $50.00                           $1.75

$50.01 >                               $75.00                           $2.00

$75.01 >                              $100.00                          $3.75

$100.01 >                            $150.00                          $5.75

$150.01 >                            $200.00                          $7.25
(For each additional increment of $50.00, or portion thereof, add $2.00.)

Please know that a service fee will not apply to payments made by check, money order or cash.