I was wondering if you ever figured out line b? However, I cannot figure out how to fill in line a. Do you know how you did that?
To fill in line b, when you are entering the 1099-DIV, be sure to enter the Tax-Exempt Interest Dividends. After entering the 1099-DIV, a series of questions come up. When it asks, "Tell us more about your exempt-interest dividends", select, "I earned exempt-interest dividends in more than one state". Then select "Multiple States" and "WI". Put the exempt dollars associated with WI in the WI row & the remainder with Multiple States.
