CIS storefront


Our mission is to get you the best tax refund possible and provide bookkeeping services for businesses in an efficient and accurate manner.

CIS was established in 1981 and is locally owned and operated by Carmen Armenti. During the busy tax season, no appointment is required and you can be assured of short wait times to sit with one of our many knowledgeable tax professionals. We’re open year round to serve all your bookkeeping and tax service needs.

We’re grateful to our many loyal clients in Niagara Falls, St. Catharines, Thorold, Welland, Fonthill and Fort Erie. CIS Income Tax Service was awarded the 31 Year Achievement Award by the City of Niagara Falls in 2012.

Hours of Operation:

Mon to Fri – 10 am to 5 pm

*Extended hours February to May 1:

Mon to Fri – 9 am to 8 pm

Saturday – 10 am to 4 pm

Payments Accepted: Cash, Debit, Visa and Mastercard