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    Tax research

    Canadian Tax Research AI

    Research Canadian income tax, GST/HST and provincial tax questions with Cassandra. Explore CRA positions, Quebec differences and cross-border issues from your facts.

    Tax researchCanada

    A focused starting point
    for your next piece of work.

    Tax research for Canada, covering legislation, regulatory guidance and practical questions.

    Use the workflow below to prepare the relevant facts and identify the parts of the output that need your review.

    Ways to use Canada Tax

    • Explore Income Tax Act questions for corporations, individuals and related-party dealings.
    • Investigate GST/HST, QST and provincial differences for the supply described.
    • Prepare research on CRA assessments, audit procedure and treaty issues.

    What to bring to the conversation

    • Province, taxpayer type, taxation year, residence and GST/HST or QST registration.
    • Relevant transaction, assessment, notice or event dates and the supporting documents.
    • The Canada research question, other jurisdictions involved and the memo, comparison or action list your team needs.

    What to check before using the output

    • Check Quebec and provincial dependencies separately from the federal position.
    • Verify cited provisions, judgments, figures and effective dates against the sources for the matter.

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    Explore tax and law for this jurisdiction together. Browse all international jurisdictions for another research question, or use the Australian engines when your matter has an Australian connection.

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    AI outputs need independent verification. Engine access depends on your plan and current platform settings. Catalogue reviewed 19 October 2026.

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