The Wisconsin Department of Revenue is making enhancements and upgrades to our manufacturing filing. All manufacturing forms (M-Forms) are moving from Manufacturing Assessment System (MAS) into My Tax Account (MTA) for the 2023 filing season.
Familiar – the changeover to MTA consolidates tax filing to a system most businesses already use to file and pay business taxes
Ease of use – MTA allows authorized users to complete many tasks, such as:
- Request extensions
- File returns
- Make penalty payments
- Modify and manage user access
- Secure – no downloading forms using third-party software
You or your representative must be registered as a user in MTA to e-file your manufacturing forms. If you or your representative are:
- Already have an MTA login – you don't need to do anything at this time
- Don't have an MTA login – do the following to create a username and password
- Go to
MTA – click "New? Create new username"
- Complete new registration steps 1-3 (Logon Information, Customer Information, Active Business) and click submit; you will finish step 4 in mid-January 2023
M-Forms – will be live in MTA in mid-January 2023
MAS – you will longer file in MAS, however, your historical filings will still be available for review
Due Date - March 1, 2023
You must file your M-Form or extension request on or before March 1, 2023.
E-file in My Tax Account (wi.gov) – preferred method
M-L Form: Leased, Rented, or Loaned Personal Property Return
M-P Form: Manufacturing Personal Property Return
M-R Form: Manufacturing Real Estate Return
Paper file – send form to:
M-P and M-R Forms
Wisconsin Department of Revenue
or Wisconsin Department of Revenue
PO Box 8909 2135 Rimrock Road
Madison, WI 53708-8909 Madison, WI 53713
M-L Form – send to the
district office where property is located
Note: If you mail your return or extension request, it must be postmarked on or before March 1. DOR will deny a request if it is postmarked after March 1, 2023.
Other Online Services
For more information or if you have trouble e-filing your M-form, contact the
DOR Manufacturing & Utility District Office in your area.