What to Expect During a CRA Audit—and How to Prepare

Introduction: Don’t Panic—Prepare

Getting notified of a Canada Revenue Agency (CRA) audit can be stressful—even for business owners who believe they’ve done everything right. But an audit doesn’t have to be a nightmare. In fact, with proper preparation and the support of a trusted CPA, the process can be manageable, transparent, and even beneficial.

At Henderson Roller Partnership in Oakville, we’ve helped countless individuals and small business owners navigate CRA audits with confidence. We understand the process inside and out—and we know how to ensure you're fully prepared, compliant, and protected.

This guide will walk you through what to expect during a CRA audit, common triggers, how to prepare your documents, and how working with a professional accountant can help reduce risk and stress.

1. What Is a CRA Audit?

A CRA audit is a formal review of your tax returns and financial records to ensure that you’ve accurately reported your income, deductions, and taxes.

Audits can happen to:

• Individuals

• Self-employed contractors

• Corporations and small businesses

Audits can be random, but they often occur when something in your return raises a flag or your business operates in an industry with a high rate of non-compliance (e.g., construction, cash-based businesses, restaurants, etc.).

2. Common CRA Audit Triggers

You might get audited if:

• Your reported income doesn’t match CRA’s records (T4s, T5s, etc.)

• You consistently report losses year after year

• Your business expenses seem unusually high for your industry

• You claim large or questionable deductions (home office, vehicle, meals)

• You’re self-employed or paid in cash

• You made late filings or failed to respond to CRA notices

• You're randomly selected

3. How Will You Know You’re Being Audited?

You’ll receive an official notice of audit from the CRA, typically by mail. This letter will outline:

• The years or returns being reviewed

• The specific information or documents requested

• The name and contact details of the CRA auditor

• A deadline for providing documents or responses

You may be asked to provide documentation by mail, electronically, or in person (depending on the scope of the audit).

⚠️ Important: If you receive a call or email about an audit, verify that it's legitimate. CRA typically communicates official audits via letter first.

4. Types of CRA Audits

There are different levels of CRA audits:

🔎 Desk Audit

• The simplest kind

• Usually involves reviewing a specific item (like medical expenses or business use of home)

• You mail or upload documents

🗂️ Field Audit

• A CRA auditor visits your office or home

• More detailed and thorough

• May involve interviews or on-site inspections

🧾 Office Audit

• You’re required to bring documents to a CRA office

• Often more in-depth than a desk audit

5. What the CRA May Ask For

The CRA auditor may request:

• Financial statements (income statement, balance sheet)

• Invoices and receipts

• Bank and credit card statements

• Mileage logs (for vehicle deductions)

• Payroll records

• GST/HST filings

• Contracts with employees or contractors

• Shareholder agreements and minute books (for corporations)

💡 Having organized, complete records can make or break the audit experience.

6. How to Prepare for a CRA Audit

Preparation is the key to reducing audit stress and ensuring a smooth outcome. Here’s how to get ready:

✅ Stay Organized Year-Round

• Use bookkeeping software (QuickBooks, Xero, etc.)

• Store scanned receipts and invoices in digital folders

• Reconcile your accounts monthly

✅ Keep All Supporting Documentation

The CRA requires you to keep tax records for at least 6 years after the end of the tax year.

✅ Match CRA Slips with Your Records

Verify that your reported income matches your T4s, T5s, and other CRA-issued slips.

✅ Review Deductions for Accuracy

Ensure that any claimed business deductions are:

• Directly related to your business

• Reasonable

• Well-documented

✅ Engage Your CPA Early

Don’t wait until you're mid-audit to seek professional help. A CPA can:

• Review your returns

• Anticipate auditor questions

• Help compile and format your documentation

• Represent you in meetings or correspondence

7. How Henderson Roller Helps During a CRA Audit

As Oakville’s trusted CPA firm, Henderson Roller Partnership offers:

🧭 Audit Representation

We handle communication with CRA auditors on your behalf, ensuring all documentation is clear, complete, and accurate.

🧾 Document Review & Preparation

We help you organize records, spot potential red flags, and prepare explanatory notes if needed.

🔒 Compliance Assurance

We’ll ensure your filings meet all CRA requirements and defend any legitimate claims.

💬 Ongoing Support

We’re not just here for tax season—we’re your year-round financial partner, ready to provide audit-proof bookkeeping, payroll, GST/HST filings, and corporate returns.

8. What Happens After the Audit?

After reviewing your records, the CRA will:

• Accept your return as filed, or

• Propose adjustments (you’ll receive a Notice of Reassessment)

If you disagree with the outcome, you have the right to:

• Request an internal review

• File a Notice of Objection

• Appeal the decision through the Tax Court of Canada

💡 With proper documentation and professional support, most audits are resolved without penalties or major issues.

Conclusion: Don’t Fear the Audit—Prepare for It

A CRA audit doesn’t mean you’ve done something wrong—it simply means the CRA wants more information. By staying organized and working with a trusted CPA, you can turn the audit process into a learning experience, not a financial crisis.

Need CRA Audit Help in Oakville?

📍 Visit Henderson Roller Partnership📞 Call us today for a confidential consultation💻 Or book online to speak with a tax expert

Henderson Roller – Trusted by Oakville Businesses for Audit Support, Tax Strategy, and Peace of Mind.