Welcome! CIS Income Tax and Accounting Services has prepared tax returns in Niagara Falls since 1981 and promises to make tax time easier for you. We stay informed with changing Canadian tax laws and dig deep to get you the best refund possible. CIS will communicate with the Canada Revenue Agency on your behalf and respond to inquiries.
During the busy tax season, you can be assured of short wait times to sit with one of our tax professionals. No appointment required. Extended hours February to May. Get on the spot refunds with CIS Fast Cash Refund®.
Please visit our tax tips page to learn about current government tax credits, exemptions and programs.
Year round accounting services for businesses throughout the Niagara Region, Halton and the GTA. Small business and corporate tax returns. Let us do your HST filing and payroll so you can concentrate on your success!
US Tax Returns & US Gambling Tax Recovery
We prepare Canadian and US income tax returns and specialize in recovering taxes paid on US gambling wins. Don’t let the IRS keep your winnings, come and see us and we’ll get your money back for you.