There is hereby conferred upon the Tax Collector the power and authority to demand, receive and collect unpaid per capita taxes by the presentation of a written notice and demand containing the name of the taxable, or the husband thereof, and the amount of tax due, to any corporation, political subdivision, association, company, firm or individual employing persons owing Borough per capita taxes, or whose wife owes Borough per capita taxes, and who are in possession of unpaid commissions or earnings belonging to any person owing Borough per capita taxes, or whose wife owes Borough per capita taxes. Upon presentation of such written notice and demand, it shall be the duty of any such corporation, political subdivision, association, company, firm or individual to deduct from the wages, commissions or earnings of such individual employee, then owing or that shall within 60 days thereafter become due, or from any unpaid commissions or earnings of such taxable in its or his possession, or that shall within 60 days thereafter come into its or his possession, a sum sufficient to pay the amount of the Borough per capita taxes and costs shown upon the written notice or demand, and to pay the same to the Tax Collector within 60 days after such notice shall have been given; however, such corporation, political subdivision, association, firm or individual shall be entitled to deduct from the monies so collected from each employee the costs incurred from the extra bookkeeping necessary to record such transactions, not exceeding two per centum of the amount of money so collected and paid over to the Tax Collector. Upon the failure of any such corporation, political subdivision, association, company, firm or individual to deduct the amount of such taxes or to pay the same over to the Tax Collector, less the cost of bookkeeping involved in such transaction, as herein provided, within the time hereby required, such corporation, political subdivision, association, company, firm or individual shall forfeit and pay the amount of such tax for each such taxable whose taxes are not withheld and paid over, or that are withheld and not paid over, together with a penalty of 10% added thereto, to be recovered by an action of assumpsit in a suit to be instituted by the Tax Collector, or by the proper authorities of the Borough, as debts of like amount are now by law recoverable, except that such corporation, political subdivision, association, company, firm or individual shall not have the benefit of any stay of execution or exemption law.