I was a partial year resident in PA and WI. I worked full-time/paid taxes in each state when I lived there. Do I need to complete 'Credit for Taxes Paid to Another State'

[DawnC · Accepted solution]

No, you won't need to do that for part-year returns.  In your case, you lived and worked in PA for part of the year, then moved and lived/worked in WI for the rest, so

PA will tax only the income you earned while you were a PA resident.

WI will tax only the income you earned while you were a WI resident.

There should be no need for the credit since the  2 income/tax streams do not overlap.