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ABOUT SOStax Tel: 514-562-9971 email: info@sostax.ca Kathleen Kez is the owner and has a Bachelors of Commerce in Marketing, Finance from Concordia University, and a Diploma in Accountancy from McGill University. With over 20 years experience in personal taxes and small business taxes, Sostax provides highly reliable, consistent and credible tax services. Give us a call. We will gladly file your Personal Income Tax or Business Income Tax Return.

SOSTax Questions

The SOSTax annual revenue was $4 million in 2026.

SOSTax is based in Westmount, Quebec.

The NAICS codes for SOSTax are [541, 54, 5412, 54121].

The SIC codes for SOSTax are [72, 729].

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