2024 MAR Filing Available

April 22, 2024

To: General Assessors

Certified Assessors

The Wisconsin Department of Revenue (DOR), State and Local Finance Division posted the 2024 Municipal Assessment Report (MAR) on our website

General filing information

  • Due date – June 10, 2024
  • Assessor must e-file through MyDORGov
  • Review – filing instructions and tips
  • Law changes – the information below is based on current state law. DOR will provide updated information if there are changes to state law.

Municipal Assessment Report (MAR)

Report type – depends on the Board of Review's (BOR) status:

  • Estimated MAR
    • If the final BOR does not adjourn by June 10, 2024 – file an estimated MAR by June 10, 2024
  • Final MAR – submit:
    • If BOR adjourns by June 10, 2024
    • If BOR adjourns after June 10, 2024 – file within 10 days after the final adjournment
  • Amended MAR
    • If you already filed a final MAR – only submit an amended MAR to update your final report
    • Submit by December 31, 2024

Late filing or non-filing

If you do not file by June 10, 2024, the following may occur:

  • Municipality receives a reduced levy limit due to the lack of new construction information
  • If the municipality has TIF districts, the prior year's non-manufacturing full value is certified for the current year, which may result in less tax increment dollars available to the municipality.
  • Note: If you file an estimated MAR by June 10, 2024, and do not file a final MAR by December 31, 2024, the Equalization Bureau will file a formal complaint against your certification with the Education and Certification section in the Office of Technology and Assessment Services. This could result in assessor misconduct under state law (sec. 946.12(1), Wis. Stats.).

Filing tips

  • You must complete the email authorization step to access the form; the authorization link is valid for 30 days
  • Save your MAR periodically as you complete it
  • Form must be error-free to submit
  • After submitting a MAR, make sure to print and/or save a copy to your local computer to ensure the confirmation number and submission date is saved with the form. DOR uses the confirmation number for questions about a report.

Net New Construction Report

The August 2024 Net New Construction Report only reflects values reported by June 10, 2024. Information provided after the filing date is reflected in the 2025 Net New Construction values.

Questions?

Contact the Equalization Bureau District Office in your area.

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