Thorsteinssons LLP

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Thorsteinssons LLP is Canada’s largest law firm practicing exclusively in taxation law. Our lawyers are consistently recognized as being among Canada’s leading tax practitioners.

Canadian Tax Law Blog

Tax Residency & Ceasing Canadian Tax Residency

Under the Income Tax Act (Canada) (the “ITA”), a resident of Canada is taxable on worldwide income, whereas a non-resident is taxable only on certain income that is connected to Canada. Non-residents are also subject to withholding tax on certain…

British Columbia expands PST to new professional services

Authored by: Adrian Zee, Rosemary Anderson, and Zheting Su The recent 2026 BC Budget announced amendments (the “Amendments”) to the Provincial Sales Tax Act (“PSTA”) to eliminate certain exemptions and expand the application of PST to…

Insights from the 2025 CRA Roundtable

At the 2025 CTF Annual Tax Conference, during their annual 2025 roundtable (the “2025 Roundtable”) the Canada Revenue Agency (the “CRA”) answered questions regarding its current administrative views and practices. This blog provides an overview of certain key takeaways from…

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