September 4, 2025
To: TIF/TID List, Municipal Clerks and Treasurers
The Wisconsin Department of Revenue (DOR), State and Local Finance Division is reminding municipalities of an upcoming deadline.
Complete by October 31, 2025
A. TID Creation or Amendment
Municipalities creating a new TID or amending an existing TID (territory or redetermination) for 2025 must adopt a resolution between October 1, 2024, and September 30, 2025. After a municipality adopts a TID creation/amendment resolution, the municipality must provide DOR with the below documents and fee.
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Email documents to tif@wisconsin.gov:
- 2025 TID creation
- Legal Docs.pdf (PE-605 plus required documents indicated on the form)
- Project Plan.pdf (approved project plan)
- Bounds Map.pdf (map showing parcels and boundary, plus legal description)
- Value Forms.xlsx (TID Base Value Workbook)
- 2025 TID territory amendment
- Legal Docs.pdf (PE-605T plus required documents indicated on the form)
- Project Plan.pdf (approved project plan)
- Bounds Map.pdf (map of original TID boundary showing added or subtracted parcels, plus updated legal description)
- Value Forms.xlsx (TID Base Value Workbook) – use for adding parcels
- Value Forms.xlsx (Territory Subtraction Workbook) – use for subtracting parcels
- 2025 TID base value redetermination amendment
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Use
My Tax Account to pay the TIF fee
B. Act 12 Personal Property Base Value Adjustment – optional request once per TID
- Applies to municipalities with a TID with personal property in the base value that did not previously request a personal property base value adjustment
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Email completedPersonal Property Removal Workbook to
tif@wisconsin.gov
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Note: There is no fee for a personal property base adjustment. DOR will review requests received by October 31, 2025, for adjustment in tax year 2026.
Questions?
Contact us at tif@wisconsin.gov.