Payroll Services of Delaware, Inc. is a dedicated payroll-processing entity operated by Orth & Kowalick, P.A., a Dover, Delaware CPA firm founded in 1975 by P. William ‘Bill’ Orth, CPA. The firm processes simple and complex (including multi-state) payrolls, prepares and files payroll tax reports, makes related federal and state tax payments, and offers direct deposit with electronic filing.