Visit your state taxing authority website. For instance, for Wisconsin, type "Wisconsin State Tax" into your search toolbar. The result should be the first or second listed.
Click on the link that will lead you to the first page. On the first page, you will see the words, "Where's My Refund" or "Check My Refund Status."
Click on the "Where's My Refund" or similar link to go to the next page.
Enter the information required to check your status. Most states require your Social Security number and refund amount. Other states may ask for your name, filing status or number of exemptions you claimed. Follow through and enter the required information.
Click "Next" or "Get My Refund" to go to the next page. On this page, you will see information detailing the status of your refund and when you can expect it.