CONTACT:  Casey Langan, Communications Director
608.266.2300 or [email protected]

The tax filing deadline is one month away and the Wisconsin Department of Revenue is reminding taxpayers to file their income tax returns by the deadline. Returns must be received or postmarked by midnight on Tuesday, April 18. The deadline is extended this year because April 15 is a Saturday and Monday, April 17 is a holiday in Washington, D.C.


Department of Revenue is sharing the following tips to make the filing process easier:



  • Pay your taxes online. The department offers easy online payment of your taxes on its website. Watch this short one minute video to find out how to make your payment online.


  • File an extension request with the IRS if you won’t make the April 18 deadline. You must request an extension from the Internal Revenue Service (IRS) by April 18 to avoid late filing penalties. Go to the IRS website at and search “extension” for more information. Taxpayers who file an extension request with the IRS automatically receive an extension from the state. Keep a copy of the IRS federal extension application (Form 4868) for your records.


  • Get free tax help at one of more than 200 Volunteer Income Tax Assistance (VITA) and Tax Counseling for the Elderly (TCE) sites across Wisconsin. For more information, visit and search “free tax help.” Call 2-1-1 to find free tax assistance sites in your area.


  • Download the WI Revenue mobile app (available in the Apple and Android app stores) and watch tax assistance videos, check the status of your return or refund, find VITA sites, take action if you received an ID Verification letter, and more.


  • Call customer service during off-peak hours at 608.266.2772. Our customer service hours are 7:45 a.m. to 4:30 p.m. Monday through Friday. The best time to call isTuesday through Friday, especially in the afternoon. Our call center is busiest on Mondays and during the lunch hour.


  • Remember DOR will not contact you by telephone or email regarding your income tax return. If the Department needs more information to verify items on your return, it will contact you by letter.


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