CIS Income Tax Service logo
  • Tax Preparation
  • Bookkeeping Services
  • Instant Income Tax Refunds
  • US and Canadian Tax Returns
  • US Tax Recovery on Gambling Winnings 
  • Serving the Niagara Region since 1981
Click or Call 905.356.8106

 Welcome to CIS Income Tax Service

Since 1981, we’ve prepared personal income tax returns for the residents of Niagara Falls and the Niagara Region including estate tax filing, rental property, capital gains and trust returns. We stay informed with ever changing Canadian tax laws and dig deep to make sure you get the best refund possible on your hard earned money. We’ll advise you of any tax credits or deductions to which you may be entitled and promise to make tax time much easier for you. CIS will communicate with the Canada Revenue Agency on your behalf and respond to inquiries.

We offer instant tax returns and cash refunds on the spot. CIS is open year round; no appointment required and hours of operation are extended from February to May.

Please visit our tax tips page for informative links to learn about current government tax credits, exemptions and programs.

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Bookkeeping Services

CIS provides year round bookkeeping services and tax preparation for businesses throughout the Niagara Region including taxes for self-employed business owners. We file HST returns and can do your payroll so you can concentrate on your success.

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US Tax Returns & US Gambling Tax Recovery

CIS Income Tax Service prepares Canadian and US income tax returns. We have years of experience and specialize in recovering taxes paid on US gambling wins. Don’t let the IRS keep your winnings, come and see us today and we’ll get your money back for you.

905.356.8106 for CIS tax preparation and bookkeeping services