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24 companies listed · 17 in St. Catharines · 5 open weekends · 20 rated 4.5+
Data verified October 18, 2026
The 24 companies listed for St. Catharines, ON prepare personal and business tax returns for clients. Details about services and credentials come from each company's own website; ratings and quotes come from public reviews.
17 of the 24 companies we list are based in St. Catharines; the other 7 serve St. Catharines from towns including Niagara Falls (17 km), Welland (22 km) and Fonthill (16 km). 23 of the companies on this page have a rating, from 4.1 to 5.0 across 531 reviews; 3 have 50 or more reviews and 20 are rated 4.5 or higher. 5 are open on Saturdays and 2 on Sundays. The services the companies on this page list most often on their websites are accounting services (4), bookkeeping services (3), payroll services (2) and tax preparation (2). Domain records put 8 websites of the companies on this page at ten or more years old; the oldest dates from 2002. 3 offer a free initial consultation and 2 are family- or locally-owned. We have a website on file for 22 of the companies on this page; 19 publish a contact page; 18 list a public email and 1 takes bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book a consultation.
3 of the 24 companies listed here offer a free first meeting. Expect a discussion of what your return involves and a price, rather than advice on your position. Bring last year's return and assessment so the estimate is based on something real.
