E-Filing Manufacturing Forms (M-Forms)

​​​​The Wisconsin Department of Revenue is making enhancements and upgrades to our manufacturing filing. All manufacturing forms (M-Forms) are movin​g from Manufacturing Assessment System (MAS) into My Tax Account (MTA) for the 2023 filing season. 

MTA Benefits

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

​ Next Steps
​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

Note

  • 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
​​
Form Information

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​
    Forms:​​​
    • 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.​