"Employer" means all persons conducting business activity within a city of the second class except for a governmental entity.
"Payroll amounts" means all amounts paid by an employer as salaries, wages, commissions, bonuses, net earnings and incentive payments, whether based on profits or otherwise, fees and similar remuneration for services rendered, whether directly or through an agent and whether in cash, in property or the right to receive property.
53 P.S. § 6924.303