Altering the rate of a tax imposed on specified entities with respect to a nonresident's share of the entity's taxable income, the rate of required withholding from specified payments to nonresident payees, and a rate used to calculate specified payments required before a deed or other instrument of writing may be recorded under specified circumstances, to reflect the rate of a specified tax that is imposed on specified individuals who are not subject to a county income tax; applying the Act to tax years after 2004; etc.