120.3 Limitations where credit against ordinary tax is claimed for income taxes paid both to a state and also to one or more of its political subdivisions.
Tax Law, § 620(b) When both a state (other than New York State) and one or more of that state's political subdivisions impose income taxes on the same or different amounts of income derived from sources within such state and political subdivision, the maximum resident credit against ordinary tax is the lowest of the amounts determined after computing the following three limitations: