Estates, Trusts and Fiduciaries

​​​The due dates for filing and making payments for certain 2019 income/franchise tax returns have changed, including due dates for certain estimated tax payments for tax year 2020. The documents on this web page may not reflect the new due dates. For information on the new filing and payment due dates, see the article Wisconsin Tax Return Due Dates and Payments.

Applicable Laws and Rules

This document provides statements or interpretations of the following laws and regulations enacted as of January 31, 2020: Sections 71.03, 71.04, 71.09, 71.125, 71.13, 71.14, 71.17, ​72.02 and 72.36, Wis. Stats.

Laws enacted and in effect after January 31, 2020, new administrative rules, and court decisions may change the interpretations in this document. Guidance issued prior to January 31, 2020, that is contrary to the information in this document is superseded by this document, pursuant to sec. 73.16(2)(a), Wis. Stats.


MS 6-81
Estate and Fiduciary Assistance
PO Box 8906
Madison, WI 53708-8906
Phone: (608) 264-4217
Fax: (608) 267-0834
Email additional questions to

Guidance Document Number: 100023

January 31, 2020