MADISON, Wis. (AP) – The Wisconsin Department of Revenue is reminding taxpayers of a variety of resources it is offering to help as the deadline for filing income tax returns nears. The April 15 filing deadline is just three weeks away. The Revenue Department’s website has instructional videos, links to forms and common questions, as well as a new mobile app with the most popular tax-related online services. There are also more than 200 sites across the state where free income tax filing assistance is available for low to moderate income residents, seniors, veterans, and individuals with disabilities. Taxpayers can also call 211 to find the nearest volunteer tax site.