For small and medium enterprise (SME) owners in Alberta, receiving a notice of audit from the Canada Revenue Agency (CRA) can feel intimidating. However, an audit does not have to be a source of stress. When approached with clear preparation, accurate records, and professional guidance, it can be resolved smoothly.
At Phillet & McLennan Chartered Professional Accountants, our team includes professionals with direct experience inside the CRA. In this article, we share key strategies to help you understand the audit process, stay compliant, and navigate a tax audit with absolute confidence.
1. Understand Why Businesses Are Selected for Audits
The CRA uses various methods to select files for audit, including:
- Risk Assessment: Comparing your business financial ratios against industry averages. Significant deviations can trigger a review.
- Random Selection: Sometimes, files are selected purely at random to monitor general compliance.
- Association: If a business you deal with (like a supplier or partner) is audited, the CRA may review your transactions with them.
- Compliance Projects: The CRA frequently runs target compliance campaigns focusing on specific sectors (such as construction, real estate, or retail).

2. Maintain Rigorous Bookkeeping and Supporting Documents
The single most powerful defense in any CRA audit is clear, organized documentation. Under Canadian tax law, you must keep all supporting documents for at least six years from the end of the relevant tax year. This includes:
- Bank and credit card statements
- Sales invoices and receipts
- Expense receipts with notes on business purpose
- Payroll and subcontractor records
- Corporate minutes and shareholder agreements
Pro Tip: Do not rely solely on digital bank statements. The CRA often requests original receipts to verify the nature of the expense, especially for meals, entertainment, and travel costs.
3. Distinguish Between Personal and Business Expenses
One of the most common adjustments made by tax auditors is the disallowance of personal expenses claimed as business deductions. To avoid this:
- Always maintain a dedicated business bank account and credit card. Do not mix personal and business transactions.
- Keep a detailed vehicle mileage log if you claim business vehicle expenses. A mileage log is the first thing a CRA auditor will ask to see.
- Ensure home office claims meet the strict criteria of being your principal place of business or used exclusively for earning income and meeting clients.

4. Act Professionally and Coordinate with Your CPA
If you receive an audit letter, contact your CPA immediately. Working with professionals who understand tax law and CRA procedures provides several advantages:
- Clear Communication: CPAs understand the terminology used by auditors and can present information in a clear, concise manner.
- Audit Representation: Your accountant can act as your representative, managing all correspondence and meetings with the auditor so you can focus on running your business.
- Understanding Your Rights: Business owners have rights under the Taxpayer Bill of Rights, including the right to professional, courteous treatment and a fair review.
Partnering for Your Peace of Mind
At Phillet & McLennan, we help Edmonton and Alberta business owners establish reliable bookkeeping systems, optimize corporate tax planning, and provide strategic audit representation. With the right systems and professional support, a CRA audit is simply a routine compliance step rather than a business disruption.
Need assistance with your corporate taxes or bookkeeping? Contact our experienced team today.