If you’ve received a letter from the Canada Revenue Agency (CRA), take a breath – you’re not alone. Whether you’re a family navigating personal tax audits or a business facing corporate tax audits, the right preparation can reduce stress, minimize reassessments, and save you money.
At Big Country Accounting Group in Calgary, we help clients across Alberta, Saskatchewan, and BC get audit-ready with practical systems and clear support.
What Is a CRA Audit—and Why You Might Be Selected
A CRA audit is a deeper review of your tax return to confirm that income, expenses, credits, and taxes were reported correctly. It’s different from a “review” (which is often a limited information check).
Common audit triggers include:
- Large swings in income or expenses year over year
- Repeated losses from a business or rental
- High home office, vehicle, or meals/entertainment claims
- Mismatched slips (T4, T5, T5018) or unreported income
- Industry-specific risk (cash-based trades, restaurants, trucking, construction)
- Random selection
Types of CRA Audits You Might See
- Personal tax audits (T1): Employment expenses, rental properties, self-employment
- Corporate tax audits (T2): Revenue recognition, shareholder loans, owner compensation
- GST/HST audits: Input tax credits and taxable vs. exempt sales
- Payroll audits: Source deductions, T4/T4A filing, contractor vs. employee classification
The First 48 Hours: What to Do When the CRA Contacts You
- Read the letter carefully. Note the tax years, issues, and deadline.
- Appoint a representative. File an authorization (Form AUT-01 or via Represent a Client) so your accountant can speak directly to the auditor.
- Confirm communication method. Keep communications in writing where possible and upload documents via CRA’s secure portal.
- Gather documents. Start with bank statements, ledgers, receipts, and contracts related to the issues noted.
- Don’t guess. If you don’t know an answer, say you’ll confirm. Consistent, accurate responses build credibility.
Build Your Audit-Ready File: Documents Checklist
Create a clean, labeled folder (digital and/or physical) for each year under audit. Include:
- Financial statements and general ledger (by month and by account)
- Bank and credit card statements with reconciliations
- Sales records: invoices, POS reports, e-commerce statements
- Expense documentation: receipts, bills, contracts, proof of payment
- Payroll records: T4s, ROEs, PD7A summaries, timesheets, payroll registers Vehicle logs and home office calculations
- GST/HST returns, input tax credit support, and GST registrant status
- For corporations: minute book excerpts, shareholder loan details, dividends, and management fee agreements
- For rentals: leases, mortgage statements, repair invoices, capital vs. current expense breakdown
If your records are behind, this is the time to catch up. Our Calgary bookkeeping services and monthly bookkeeping services help organize receipts, reconcile accounts, and build an audit ready document trail for bookkeeping for small businesses.
A Step-by-Step Prep Process That Works
Follow this structure to reduce back-and-forth with the auditor:
- Define the scope.
- List the exact questions/issues noted by CRA and the periods involved. Tie the return to your books.
- Reconcile your filed return to your general ledger and bank accounts. Resolve differences now, not during the interview.
- Substantiate revenue.
- Match deposits to invoices. Separate loans/transfers and non-taxable items (e.g., shareholder contributions).
- Substantiate expenses.
- For each expense category in question, compile detailed listings with receipts and proof of payment. Note business purpose.
- Validate sales tax.
- For GST/HST, create a worksheet tying sales and input tax credits to your filings by period. Exclude exempt purchases.
- Confirm payroll compliance.
- Reconcile T4s to payroll registers and PD7A remittances. Review any T4A slips for subcontractors.
- Perform reasonableness checks.
- Mileage vs. fuel spend, meals vs. revenue, contractor spend vs. payroll—ensure claims align with industry norms.
- Package your response.
- Number documents, include an index, and provide a short cover memo explaining your approach and any estimates used.
- Track deadlines.
- Use calendar reminders for document requests and meeting dates. Ask for extensions early if needed.
- Review proposed adjustments.
- If the auditor proposes changes, request the working papers. Respond respectfully with evidence and explanations
Regional Notes for Alberta, Saskatchewan, and BC
- Alberta: No PST, so CRA audits often focus on income tax, GST/HST, and payroll. Oilfield, trades, and trucking clients should expect scrutiny on contractor classification and vehicle logs.
- Saskatchewan and BC: CRA audits cover federal taxes and GST/HST, while provincial ministries may separately audit PST. Keep PST documentation (e.g., tax paid on supplies, PST collected on taxable sales) if you operate in SK or BC.
- Cross-border and interprovincial sales: Know place-of-supply rules for sales tax. Wrong tax codes are a common source of reassessments.
How Big Country Accounting Group Can Help
We combine practical bookkeeping, tax, and representation experience to guide you through audits with less stress and better outcomes. Our services include:
- Corporate tax services and tax services for individuals, including tax preparation services Calgary-wide and across Western Canada
- Calgary bookkeeping services and monthly bookkeeping services to keep your records audit-ready year-round
- Payroll services Calgary and support across Alberta and beyond to ensure source deductions are correct and on time
- Guidance for personal tax audits and corporate tax audits, including document preparation and auditor communication
- Post-audit tax planning to strengthen your systems and reduce future risk
Real-World Example
A Calgary-based contracting company received a CRA audit request focused on GST/HST input tax credits and meals/entertainment. Their records were incomplete and unreconciled. We reconstructed 18 months of books using bank feeds and vendor statements, prepared a clean GST tie-out, and organized digital receipts by account.
Outcome: The proposed reassessment of $27,000 was reduced to $3,800 after we substantiated vehicle and tool expenses and corrected tax coding errors. We also implemented monthly bookkeeping services and set up a simple receipts app to prevent repeat issues.
After the Audit: Objections and Next Steps
- Review reassessments promptly. You typically have 90 days to file a Notice of Objection (longer in some cases).
- Ask for working papers. Understanding how the auditor reached their conclusion helps you respond effectively.
- Consider payment arrangements. If a balance is due, set up a payment plan to reduce interest.
- Fix root causes. Update policies for receipts, mileage logs, and contractor agreements. Standardize your chart of accounts and month-end process.
- Explore planning opportunities. From owner compensation to expense policies, the right structure can minimize risk and tax. We help with post-audit tax planning and ongoing compliance.
FAQs: CRA Audit Preparation in Western Canada
How long does a CRA audit take?
Simple desk audits can wrap up in a few weeks. Field audits or multi-year files can take months. Clear, organized responses speed things up.
How far back can the CRA audit?
Generally three years from the date of the original notice of assessment for income tax (four years for many GST/HST files). CRA can go back further in cases of misrepresentation or neglect.
Do I need to meet the auditor in person?
Not necessarily. Many audits are done by phone and through the CRA portal. In-person or video meetings may be requested for complex files.
My records are messy—what should I do?
Don’t panic. Rebuild what you can with bank statements, vendor records, and calendars. We often reconstruct reliable support packages that satisfy CRA requirements.
Popular Search Terms in AB, SK, and BC
If you’re researching this topic, you might also search:
- “CRA audit Alberta” and “CRA review vs. audit”
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- “What triggers a CRA audit Canada”
- “BC PST audit” or “Saskatchewan PST audit”
- “How to respond to a CRA audit letter”
Including these topics in your preparation helps you ask the right questions and get organized from day one.
Ready to Feel Confident About Your Audit?
Big Country Accounting Group is your local partner for clear communication and strong documentation. From bookkeeping for small businesses to corporate tax services and tax services for individuals, we help you prepare, respond, and plan ahead. If you’re in Calgary, Alberta, Saskatchewan, or BC, reach out for a friendly, no-pressure conversation about your audit and next steps.
Contact us today to get started with audit support, tax preparation services Calgary, payroll services Calgary, and post-audit tax planning designed to protect your time, money, and peace of mind.
