CIS Income Tax Service

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Niagara Falls, ON
CIS Income Tax Service

Accounting and Personal, Corporate, and U.S. tax return preparation in Niagara Falls. Voted as Best Tax Service in Niagara! We are proud to offer U.S.

Gambling Winnings Tax Recovery! CIS Income Tax Service has been operating for more than 40 years. Our tax preparers and reviewers collectively have decades of experience with all types of personal income tax returns. We participate in multiple annual tax update seminars and courses to ensure that we stay up to date on everchanging tax legislation. We have a strict review process in place, allowing

us to guarantee the accuracy of everything we prepare. As a testament to our quality, accuracy, and customer service, CIS has been consistently named one of the best Income Tax offices in Niagara Falls by the Readers Choice Awards, Quality Business Awards, and ThreeBestRated. We’d like to extend our heartfelt gratitude to our many loyal clients in the Niagara Region, Halton Region, GTA, and beyond for making this possible

01/26/2026

Another beautiful snowy day in Niagara! ❄️

01/15/2026

Snow day ❄️ Our office is closed today due to the weather for the safety of our staff and clients! We’ll be back and open tomorrow! Stay safe 😊

10/01/2025

Our office will be closed during the next 2 weeks and re-open on October 15.

Wishing everyone a happy Thanksgiving!

Address

6107 Main Street
Niagara Falls, ON
L2G6A1

Website

https://cisincometax.ca/

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