As used in this article:
"Employer" means any individual, corporation, company, association, society, firm, partnership, joint stock company, trust, estate, or foundation standing in the position of employer in an employer-employee relationship, having one or more employees and having a payroll in excess of $2,500.00 in any calendar quarter; other than
"Payroll" means an amount equal to the total remuneration paid by employers to employees which is subject to withholding by the employer for Federal income tax purposes for services, other than domestic services in a private residence, if
N.J.S. § 40:48C-14