CRA Audit Notice? Your First 5 Steps as a Markham Business

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Got a CRA letter in Markham? Learn what type of audit it is, how to respond within 7 days, what documents to send, and when to bring in a CPA.

• Article details: Tax Tips; published May 10, 2026; 9 min read.
• CRA Audit in Markham: What to Do If You Get the Letter
• First, take a breath. That envelope from the Canada Revenue Agency is alarming to receive, but in the vast majority of cases it is not a full audit — it is a routine matching exercise or a targeted request for a few supporting documents. The taxpayers who get into serious trouble are those who panic, ignore the letter, or send too much without thinking.
• This guide is for Markham individuals and small businesses staring at a CRA letter right now. We cover what the letter likely means, what to do in the first week, what to send and what to hold back, your rights after a proposed reassessment, and the local patterns that put Markham taxpayers in the agency's crosshairs.
• Our personal tax and corporate tax teams also help clients build audit-resistant records so the next CRA letter is far less stressful.
• Contact us to book a consultation, or visit our Markham accounting page to get started. The sooner we review the letter, the more options you have.

Related pages

• Blog: Browse more Canadian tax and accounting articles.
• Tax Planning & Advisory: Get advice before tax decisions become filing problems.
• Contact ARMalik: Ask a Markham CPA about how this topic applies to your situation.

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