State of Wisconsin Personal Income Tax Extensions

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General Instructions

Wisconsin individual income tax returns are due by April 15 in most years. If you cannot file by this date, you can get a Wisconsin tax extension.

Wisconsin personal extensions are automatic, which means there is no application to submit. A Wisconsin extension will give you 6 more months to file, moving the filing deadline to October 15. However, an extension of time to file is NOT an extension of time to pay. Your Wisconsin income tax must be paid by the original due date (April 15), or interest and penalties will apply.

If you have a valid Federal tax extension (IRS Form 4868), you will automatically be granted a corresponding Wisconsin tax extension. Make sure to attach a copy of your approved Federal extension to your Wisconsin tax return when it’s filed.

If you don’t have a Federal extension, you must provide either a written statement indicating that you wish to utilize the Federal extension provision OR a copy of Federal Form 4868 (with only your name, address, and signature). Make sure to attach your written statement or Form 4868 copy to your Wisconsin tax return when it’s filed.

If you owe Wisconsin income tax, you can make an extension payment using Wisconsin Form 1-ES (Estimated Income Tax Voucher).  Wisconsin extension payments can also be made online through “My Tax Account”: tap.revenue.wi.gov/services

For more information, please visit the Wisconsin Department of Revenue website: www.revenue.wi.gov

Wisconsin State Income Tax Payment Forms


Form 1-ES (Estimated Income Tax Voucher)


Mail with payment to the following address:

Wisconsin Department of Revenue

P.O. Box 930208

Milwaukee, WI  53293-0208