Do I need to attach a Wisconsin Schedule 2K-1, 3K-1, or 5K-1?

If you received a Wisconsin Schedule 2K-1 (estates or trusts), Schedule 3K-1 (partnerships), or Schedule 5K-1 (s corporations) that had any Wisconsin credits or adjustments, you should include a copy of the Wisconsin 2K-1, 3K-1, or 5K-1 with your Wisconsin return.

If you're e-filing your return you can either attach a copy here or mail a copy with Form W-RA which will be available to you after your e-filed Wisconsin return has been accepted.