Wisconsin Income Tax Extension

Option 1: If you do not owe Wisconsin income taxes or expect a WI tax refund by the tax deadline, you do not have to prepare and file a WI tax extension. In case you expect a WI tax refund, you will need to file or e-File your WI tax return in order to receive your tax refund money.

Option 2: eFiled a Federal Extension? If you do not owe Wisconsin income taxes or expect a tax refund by the tax deadline, your accepted federal extension will be honored as a state extension. Make sure you attach a copy of your federal extension to your Wisconsin income tax return.

Option 1: Pay all or some of your Wisconsin income taxes online via: Wisconsin Department of Revenue.

Option 2: If you owe WI income taxes, you will either have to submit a WI tax return or extension by the tax deadline in order to avoid late filing penalties. You can only eFile and IRS tax extension, but not a Wisconsin extension. The tax extension will only avoid late filing penalties until the October deadline.
Note: Unless you pay all your Taxes or eFile your tax return by the October deadline, the late filing penalties will start again after that deadline. If you expect to pay additional taxes owed, you can avoid the 1% per month interest charge during the extension period by paying the tax you will owe by the tax deadline.

Option 3: Complete Form 1-ES, include a Check or Money Order, and mail both to the address on Form. Important: Even if you filed an extension, you will still need to file your WI tax return either via eFile or by paper by the October deadline.

All Wisconsin Tax Income Tax Return Deadlines

Important: If you owe Wisconsin and/or IRS income taxes and do not file an IRS and Wisconsin tax return or extension by the Tax Due Date, you will be subject to IRS and WI late filing penalties. Estimate IRS late filing, payment penalties. In addition, if you do not pay your taxes by the Tax deadline, you will be subject to late tax payment penalties. Filing an extension on time will ONLY eliminate the late filing penalties but not the late tax payment penalties. Late filing penalties are generally higher than late payment penalties, thus file something on time even if you can't pay anything on time!

e-File a Tax Extension for free on eFile.com. Here are instructions on whether you should consider a Tax Extension or not.

Discuss your extension questions and goals with a Taxpert for free and we will guide you through the process.