To report your state and/or local income taxes paid (NOT withholding or estimated tax payments):
The TaxAct program will transfer this information, and state taxes withheld on Form W-2, to Schedule A (Form 1040) Itemized Deductions, Line 5.
Note that any link in the information above is updated each year automatically and will take you to the most recent version of the webpage or document at the time it is accessed.