CIS Income Tax Service has been operating for more than 40 years! The company was established in 1981 by Carmen Armenti (owner/operator), Sophie Lewchuk, and Isabel Wilson. Many of our dedicated employees have been with the company for over 30 years. CIS was named “Best Accountants in Niagara” from the Quality Business Awards and we’re currently rated as one of the best tax services in Niagara Falls.

Our tax preparers collectively have over 120 years of experience and the expertise to handle all types of personal tax returns. All of our tax preparers participate in multiple annual tax update seminars and courses. We guarantee accuracy of all work we complete – which is why CIS has a strict tax return review process in place.

We’d like to extend our heartfelt gratitude to our many loyal clients in the Niagara Region, Halton, and GTA throughout the years for making this possible!