Tax Season in Wisconsin

what you should know about what you owe

Wisconsin Department of Revenue

Wisconsin’s tax season, like the federal tax season, officially began on Jan. 27. Filing activity is typically most brisk during the first few weeks and the last few weeks of the season.

This year’s individual income tax filing deadline is Wednesday, April 15. The Wisconsin Department of Revenue reminds taxpayers not to file until they have all their tax documents. Having to file an amended return later will significantly delay a refund.

“Of the more than three million individual income tax returns the department received last year, just under 88% were filed electronically,” says Wisconsin Department of Revenue Secretary Peter Barca. “We would love to see that number at 100% because electronic filing is more secure, accurate, and almost always results in a faster refund.”

People may use the free and accurate Wisconsin e-file online tool to file their state income taxes, or they may choose to use third-party software from an approved vendor. Like other online tools, Wisconsin e-file does the required math to prevent errors and allows direct deposit or withdrawal from a bank account.

“Providing excellent customer service is very important to us,” Barca said. “We encourage taxpayers with questions to submit them online or call DOR’s individual customer service line at (608) 266-2486.” Barca noted that last year, 98.99% of callers rated their phone service as professional and knowledgeable.

Taxpayers will find helpful resources available on DOR’s website ( including:

• A list of free tax help sites across Wisconsin and more information about them.
• An online application that checks your refund status.
• A free mobile app available through Apple and Android app stores.
• DOR’s video center, with information on e-filing, free tax help and tax credits.