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After you file
Do you have to send a copy of your federal tax return with your state return in Wisconsin?
You will need an electronic copy of your complete federal income tax return and any other attachments. If you used software to file your federal income tax return, you should have had the option to save it in an electronic format.
So the federal return will show the extension payment which confirms the fed extention was technically filed ... again I would just efile the state return and respond to any notice later if you ever get one.
‎June 12, 2023
5:33 PM