Personal Tax Season in Ontario: What You Need to Know for 2026
By Fern Taxes CPA Professional Corporation
Tax season is here again, and for many Ontarians, that means gathering documents, reviewing income, and ensuring everything is filed accurately and on time. Whether you’re an employee, self-employed, or earning investment income, proper tax preparation can help you avoid costly mistakes and potentially increase your refund.
At Fern Taxes CPA Professional Corporation, we help individuals and families navigate personal tax season with clarity and confidence.
Key Deadlines to Keep in Mind
For most individuals in Ontario:
- April 30, 2026 – Deadline to file your personal tax return and pay any taxes owing
- June 15, 2026 – Filing deadline for self-employed individuals (but any balance owing is still due April 30)
Filing late can result in penalties and interest, so it’s important to stay ahead of these dates.
Common Income Sources to Report
Many taxpayers underestimate how many different types of income must be reported. These may include:
- Employment income (T4 slips)
- Self-employment or side hustle income
- Rental income
- Investment income (dividends, interest, capital gains)
- Government benefits
Even if you didn’t receive a slip, income is still required to be reported.
Deductions and Credits You Shouldn’t Miss
One of the most important parts of tax season is ensuring you claim all eligible deductions and credits. Some commonly missed items include:
- RRSP contributions
- Childcare expenses
- Medical expenses
- Tuition and education credits
- Work-from-home expenses (if eligible)
Each of these can reduce your taxable income or increase your refund when applied correctly.
Self-Employed? Be Extra Careful
If you earned income as a freelancer, contractor, or small business owner, your tax situation becomes more complex.
You’ll need to:
- Track all income and expenses accurately
- Claim eligible business deductions
- Consider instalment payments if applicable
Proper reporting not only ensures compliance but can significantly reduce your overall tax liability.
Watch for CRA Reviews and Errors
The Canada Revenue Agency (CRA) continues to increase its review activity. Common triggers include:
- Large or unusual deductions
- Missing income slips
- Inconsistent reporting year over year
Simple mistakes—like entering the wrong numbers or missing a slip—can delay your refund or lead to reassessments.
Why Professional Support Makes a Difference
While many people try to file their taxes on their own, personal tax situations are becoming increasingly complex. A CPA can help you:
- Identify deductions and credits you may overlook
- Ensure accurate and compliant filing
- Plan ahead for future tax savings
- Minimize risk of CRA reassessment
At Fern Taxes CPA Professional Corporation, we take a personalized approach to help you maximize your return while staying fully compliant.
Final Thoughts
Tax season doesn’t have to be stressful. With the right preparation and guidance, you can file with confidence and make the most of available tax-saving opportunities.
If you need assistance with your personal taxes this season, Fern Taxes CPA Professional Corporation is here to help every step of the way.
