​​​Effective December 16, 2009, Wisconsin Act 91 adds June 19 (Juneteenth Day) to the list of legal holidays for Wisconsin. June 19, 1865, is the day that slaves throughout Texas first received word that all slaves in the United States had been freed by President Lincoln.

Wisconsin laws relating to taxes and credit claims administered by the Department of Revenue (e.g., individual income, corporation income/franchise, estate, sales and use, motor vehicle and general aviation fuel, alcoholic beverage, tobacco, etc.) contain various due dates for filing returns, reports, statements, and other documents and for making payments.

When the due date falls on a Saturday, Sunday, or legal holiday, the filing of returns, reports, statements, or other documents and the making of payments are considered timely if the return, report, statement, or other document is filed or the payment made on the next succeeding day which is not a Saturday, Sunday, or legal holiday.

Example: June 19 falls on a Saturday in 2010. Any payment due on June 19 will be considered timely if paid on or before June 21, which is the next succeeding day which is not a Saturday, Sunday, or legal holiday.

December 14, 2009