What Is a CRA Audit and How to Prepare

No one likes the idea of being audited, but understanding how a Canada Revenue Agency (CRA) audit works—and how to prepare for one—can make the process far less stressful.

At Infinity & Beyond Business Inc., we help business owners stay ready year-round so an audit doesn’t catch them off guard. Whether you’ve received a notice or simply want to stay prepared, this guide explains what to expect and how to organize your records for a smooth experience.

What Is a CRA Audit?

A CRA audit is a review of your business records to ensure the information you’ve reported is accurate. This may include checking:

The income you’ve reported
Deductions you’ve claimed
GST/HST returns
Payroll records

The CRA may contact you for an in-person audit, a mail-in review, or a phone-based inquiry. Audits can be random or triggered by inconsistencies, large claims, or missing information.

What Triggers a CRA Audit?

While audits can happen to anyone, common triggers include:

Unusual changes in income or expenses
Repeated losses over multiple years
High claims for business use of home or vehicle
Missing information on returns
Industry-specific benchmarks not being met
Late or amended filings

What Happens During a CRA Audit?

Initial Contact: You’ll receive a letter or call informing you of the audit, what years are being reviewed, and what documents are needed.
Document Submission: You may be asked to send records or prepare for an on-site visit.
Review Process: The auditor will examine your bookkeeping records, receipts, and other supporting documents.
Results: You’ll receive a summary with findings. If changes are proposed, you’ll have the opportunity to respond or provide more details.
Assessment or Reassessment: CRA may issue a new amount owed or a refund, depending on the outcome.

How to Prepare for a CRA Audit

Here’s a detailed checklist to ensure your records are audit-ready:

1. Keep Your Books Up to Date

Use software like QuickBooks, Xero, or Sage
Ensure entries are categorized correctly
Reconcile your bank accounts monthly

2. Retain All Supporting Documents

Save all receipts, invoices, and bills
Store digital or hard copies for at least six years
Include proof of payments (e.g., cleared cheques, credit card statements)

3. Track Business vs. Personal Use

For home office: document workspace size, usage hours, and related bills
For vehicles: maintain a logbook of business vs. personal kilometres
For phones and internet: keep records showing business use percentage

4. Organize GST/HST Records

Keep copies of returns and supporting documentation
Retain sales and expense receipts with GST/HST clearly shown
Reconcile your GST/HST collected vs. remitted regularly

5. Maintain Payroll Documentation

Keep copies of T4s, remittance forms, and pay stubs
Record source deductions and submission dates
Track contractor payments and issue T4A slips if applicable

6. Conduct Regular Reviews

Review your books quarterly with your accountant
Flag unusual entries or trends early
Prepare summaries and working papers for each reporting year

What If You Find Errors?

If you notice a mistake on a past return, it’s best to correct it before an audit. The CRA Voluntary Disclosures Program (VDP) allows you to fix issues without penalties, as long as you come forward before they contact you.

Tips for Working with the CRA Auditor

Be polite, professional, and cooperative
Answer only what’s asked—don’t provide unrelated documents
Respond by deadlines
If unsure, have your accountant communicate with the auditor directly

How Infinity & Beyond Business Inc. Can Help

Whether you’re going through an audit or want to avoid one, we help business owners:

Organize and digitize records
Stay compliant with reporting obligations
Prepare audit response packages
Communicate with the CRA on your behalf

If you’re looking for an experienced Accountant in North Vancouver who can help you stay audit-ready and compliant year-round, Infinity & Beyond Business Inc. is here to support you.

A CRA audit doesn’t have to be overwhelming. With proper records and the right team, it becomes a manageable process. The key is staying organized, maintaining good documentation, and having professionals you can trust.

Have questions about CRA audits or need help preparing your records?
Contact Infinity & Beyond Business Inc. today and get support tailored to your business needs.

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