New businesses will find C.E. McMahon Professional Corporation especially helpful in that we offer many value-added Corporate Tax Services including Year End Compilation, Corporate Tax Returns / E-file, Bookkeeping, HST Remittance, Payroll, Workers Compensation and Shareholder Accounting. Starting and maintaining a business is not without stress and anyone that ventures into forming a corporation knows how you are challenged for time. Our goal is to give you back your evenings, weekends and holidays by becoming an extension of your business. Our staff are keenly aware of the nuissances of Corporate Accounting and many have worked for businesses just like yours.