Spring 2026 is packed with important tax deadlines that go far beyond the main tax filing date. The key dates to remember include the June 15 deadline for self-employed individuals and partners to file their returns (though payment is still due by June 1), the March 1 deadline for certain corporate returns, and various quarterly installment payments if you owe taxes. Missing these deadlines can result in penalties, interest charges, and CRA compliance issues, even if you're expecting a refund. Understanding the spring tax calendar helps you stay organized and avoid costly mistakes. Spring brings a flurry of tax-related deadlines that affect different groups of taxpayers. Here's what matters: If you're self-employed, a partner in a business partnership, or a sole proprietor, your tax return is due by June 15, 2026. This CRA rule may apply to you even if you're expecting a refund. Your payment, however, is due by June 1, 2026, so don't confuse the filing deadline with the payment deadline. This extra month compared to the general population deadline (June 1) gives self-employed filers time to gather business records and calculate deductions. However, the payment deadline remains earlier, so budget accordingly.
Yes, self-employed individuals and partners have a June 15 filing deadline instead of June 1. However, any taxes owing are still due by June 1. Employees and retirees must file and pay by June 1.
You'll face a late filing penalty of 5% of unpaid tax plus 1% per month of additional tax owing (up to 12 months). Interest also compounds daily at the CRA prescribed rate on any balance owing.
The CRA sends an installment notice if you owe more than a minimum threshold in taxes (usually $3,000). Payments are typically due March 15, June 15, September 15, and December 15. Check your CRA My Account to see if you have an active installment obligation.
No. RRSP contributions for 2025 taxes must be made by March 1, 2026 (or March 2 in leap years). Spring contributions count toward your 2026 tax year. Check your notice of assessment to see your available contribution room.
Filing early won't hurt, but you can file anytime before the deadline. If you receive the Canada Child Benefit or other income-tested benefits, filing early helps ensure you receive payments on time. Using a tax software or professional can speed up the process.