Parsian Accounting, Payroll, and Tax Services. Parsian Financial Group is a Toronto based Accounting Bookkeeping and Income Tax Services firm providing wide range of business and individual Financial Services. Get ready to experience our over 30 years experience in personal and corporate accounting services. We are committed help you to grow and promote your business with our excellent financial services. We provide these services for local small and medium size businesses in Toronto, Thornhill, Markham, and Richmond Hill area, Parsian in Linkedin