An Act amending the act of March 4, 1971 (P.L.6, No.2), known as the Tax Reform Code of 1971, in corporate net income tax, further providing for definitions, for reports and payment of tax and for consolidated reports; and, in general provisions, further providing for underpayment of estimated tax.

SB 656 proposes changes to Pennsylvania's corporate net income tax, primarily affecting corporations that are part of a "unitary business," meaning a group of related companies operating as a single economic unit. Beginning after December 31, 2025, these businesses would calculate their taxable income based on the combined income of their U.S. operations ("water's-edge basis"). The bill also modifies rules for deductions related to intercompany dividends and addresses the treatment of intangible and interest expenses incurred in transactions between affiliated entities. Income for these unitary businesses would be apportioned to the state using a sales factor.