An Act amending the act of March 4, 1971 (P.L.6, No.2), known as the Tax Reform Code of 1971, in personal income tax, further providing for income taxes imposed by other states.

SB 253 modifies Pennsylvania's tax code to help residents who earn income in other states claim credits for taxes paid there. It allows Pennsylvania residents to claim a credit against their state tax for income taxes paid to other states, limited to the portion of their total income taxed by that other jurisdiction. The bill simplifies documentation by permitting certified statements instead of submitting full state tax returns to verify taxes paid. This change applies to taxable years beginning after December 31, 2021, and affects Pennsylvania taxpayers with income subject to taxation in other states.