About Us

As a second-generation family-owned and operated business, we take great pride in offering a warm, friendly, and professional experience for every client. Our team of experienced tax professionals collectively bring decades of experience to assist you with both your Canadian and US income tax matters.

To ensure we stay at the forefront of ever-changing tax legislation, our tax professionals participate in numerous professional development events and courses each year. With our rigorous review process, we guarantee the accuracy of every return we prepare.

Founded by Carmen Armenti, Sophie Lewchuk, and Isabel Wilson, CIS Income Tax Service has been proudly serving the Niagara community since 1981. As a testament to our long-standing commitment to 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 are truly thankful to our loyal clients throughout the Niagara Region and beyond for your continued trust and support.