The federal and state tax filing deadline is Monday, with a midnight deadline to be received electronically or postmarked.  

The deadline is extended this year because of the Emancipation Day holiday in Washington, D.C. Friday, April 15.

 State Department of Revenue officials suggest filing an extension with the Internal Revenue if you won’t make the April 18 deadline to avoid penalties. The deadline extension can be filed at www.irs.go; search “extension” for more information. Taxpayers who file an extension request with the IRS automatically receive an extension from Wisconsin, and should keep a copy of IRS Form 4868 for your records.

Taxpayers can check their refund status online using the Where’s My Refund? application found at www.revenue.wi.gov, or by calling 1-866-947-7363.  Both methods are available 24 hours a day, seven days a week.