If you work in PA but live in DE, here is what should happen:
You file a PA non-resident income tax return only reporting your PA income. If all you PA income is W2 wages, your employer should have withheld the exact amount for PA taxes such that you get zero refund/zero balance due. You shouldn't owe money to PA unless your employer under-withheld (should be exactly 3.07% of wages)(unusual) or reported additional income items, possibly in error.
Then you file a resident state DE return claiming all your income, including that earned in PA. Be sure that your return contains a credit for taxes paid to another state, the taxes paid to PA. There should be a number on line 10 of your DE 200-01 form.
In TurboTax, you must doe the PA return first, then the DE return in order for the credit to be picked up, though you should be able to manually enter
Wether you get a refund from DE is a matter of your filing status, exemptions etc etc etc.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.