February 24, 2026
To: Telecommunications
The Wisconsin Department of Revenue (DOR), State and Local Finance Division would like to inform you that the 2026 Telco forms are now available in
My Tax Account (MTA).
File electronically - by March 2, 2026
- In
MTA – complete or e-file an extension for your 2026 T-R and T-P forms for the December 31, 2026 filing period
- Reminder – you must e-file both the T-R and T-P forms even if you do not have personal or real property
- You can request a filing extension in MTA – filing deadline with extension is April 1, 2026
Late filing penalty
-
One month or less – if you file within a month after the March 2, 2026, due date (or April 1, 2026 for an extension), DOR will charge you a 5% penalty of the 2025 taxes
-
For each additional month you are late – DOR will charge another 5%, not exceeding 25% of the total
Towers Reminder
If you are reporting towers, complete Schedule TI.
- Schedule TI – enter all tower locations on this schedule
- Towers you reported last year will
not be listed on this year's schedule
- Report any new towers on the schedule
- If there are any towers you reported last year, but no longer own – contact DOR to have them removed from the locally-assessed list
- Excel spreadsheet – you may also use the
State Assessed Towers Roll located on our
website to enter the locations
Questions?
Contact us at mfgtelco@wisconsin.gov.