Why Canadian Tax Deadlines Matter More Than Most Canadians Realize
Missing a CRA tax deadline in Canada is not just inconvenient — it is expensive. The CRA charges a combination of late-filing penalties (5% of unpaid tax immediately, plus 1% per month), daily compound interest on any unpaid balance, and may pursue collection action including wage garnishments and bank account freezes for serious delinquencies. And for corporations, missing the T2 filing deadline can trigger director liability for unremitted taxes.
This is the complete reference guide for every major Canadian tax deadline in 2025 — for individuals, self-employed persons, corporations, and employers.
Need help meeting your CRA deadlines or catching up on late filings? Pathak Professional Corporation in Mississauga handles all CRA filings and compliance for individuals and businesses. Call 437-872-7399.
Personal Income Tax Deadlines 2025 (T1 Returns)
| Who | Filing Deadline | Payment Deadline | Late Penalty |
|---|---|---|---|
| Most individuals | April 30, 2025 | April 30, 2025 | 5% of unpaid tax + 1%/month (max 12 months) |
| Self-employed individuals (and spouse) | June 15, 2025 | April 30, 2025 | Same penalty — note: TAXES still due April 30! |
| Deceased taxpayer (died Jan 1–Oct 31) | April 30, 2026 (for 2025 death) | April 30, 2026 | Same penalty |
| Deceased taxpayer (died Nov 1–Dec 31) | 6 months after date of death | 6 months after date of death | Same penalty |
Critical distinction for self-employed: While the filing deadline extends to June 15, 2025, any taxes owed must still be paid by April 30, 2025. Filing late (after June 15) triggers the 5% penalty on any unpaid balance. Filing on time but paying late (after April 30) triggers daily interest — currently at the CRA prescribed rate plus 4%.
Corporate Tax Deadlines 2025 (T2 Returns)
| Corporation Type | T2 Filing Deadline | Corporate Tax Payment | Installment Payments |
|---|---|---|---|
| All corporations | 6 months after fiscal year end | See below | Monthly or quarterly |
| CCPC (eligible for SBD, income under $500K) | 6 months after year end | 3 months after year end | Monthly (if large) |
| All other corporations | 6 months after year end | 2 months after year end | Monthly (if large) |
Example for a December 31, 2024 fiscal year end:
- T2 filing due: June 30, 2025
- Tax payment due (CCPC): March 31, 2025
- Tax payment due (other corp): February 28, 2025
Important: Corporations that fail to file their T2 on time face a penalty of 5% of unpaid taxes plus 1% per month for up to 12 months — and directors can be personally liable for unremitted taxes, CPP, and EI if the corporation defaults.
Employer Payroll Deadlines 2025
| Employer Size | Monthly Remittance Due | Quarterly Remittance Due | T4/T4A Filing |
|---|---|---|---|
| Regular (monthly average <$25,000) | 15th of following month | N/A | February 28, 2025 |
| Accelerated Tier 1 ($25K–$99,999/month) | 25th of same month for first 15 days; 10th of following month for second 15 days | N/A | February 28, 2025 |
| Accelerated Tier 2 ($100K+/month) | Within 3 business days of pay date | N/A | February 28, 2025 |
| Quarterly (new small employers) | N/A | 15th day after each quarter | February 28, 2025 |
T4 slip deadline: All employers must issue T4 slips to employees AND file T4 Summary with the CRA by February 28, 2025. Late T4 filing penalty: $10 per day, minimum $100, maximum $7,500.
HST/GST Filing Deadlines 2025
| Filing Frequency | Who It Applies To | Return Due Date | Payment Due |
|---|---|---|---|
| Monthly | Businesses with over $6M in taxable supplies | 1 month after month end | Same day as return |
| Quarterly | Most small-to-mid businesses ($1.5M–$6M) | 1 month after quarter end | Same day as return |
| Annual (calendar year) | Small businesses under $1.5M | April 30, 2025 (for 2024 calendar year) | April 30, 2025 |
| Annual (non-calendar year) | Businesses with non-December fiscal year end | 3 months after fiscal year end | Same day as return |
RRSP and TFSA Deadlines 2025
| Account Type | Contribution Deadline | 2025 Limit | Notes |
|---|---|---|---|
| RRSP (for 2024 tax year) | March 3, 2025 (60 days into 2025) | 18% of 2023 income, max $31,560 | Contributions before March 3 reduce 2024 taxable income |
| RRSP (for 2025 tax year) | March 2, 2026 (60 days into 2026) | 18% of 2024 income, max $32,490 | Confirm limit on your 2024 Notice of Assessment |
| TFSA (2025 annual contribution) | Anytime in 2025 — January 1 onward | $7,000 new room in 2025 | Cumulative room $102,000 if eligible since age 18 in 2009 |
| FHSA (2025) | Anytime in 2025 | $8,000/year, lifetime $40,000 | First-time home buyers only; unused room carries forward |
Tax Instalment Payment Deadlines 2025
Individuals who owe more than $3,000 in taxes in both the current year and one of the two preceding years must make quarterly tax instalments:
| Instalment | Due Date 2025 | Amount |
|---|---|---|
| Q1 | March 15, 2025 | 25% of required annual instalment |
| Q2 | June 15, 2025 | 25% of required annual instalment |
| Q3 | September 15, 2025 | 25% of required annual instalment |
| Q4 | December 15, 2025 | 25% of required annual instalment |
Who must pay instalments: Self-employed individuals, investors with significant investment income, retirees with RRIF/pension income not subject to adequate withholding, and anyone whose net tax owing exceeds $3,000 in the current and one of the two prior years.
Other Important CRA Deadlines for 2025
| Filing / Payment | Deadline |
|---|---|
| T3 Trust returns (December 31 year end) | March 31, 2025 |
| T5 slips (investment income) | February 28, 2025 |
| T5013 Partnership information return | March 31, 2025 |
| T1135 (Foreign Income Verification) | Same as T1 — April 30 / June 15 |
| SR&ED claims (December 31 fiscal year) | June 30, 2026 (18 months after fiscal year end) |
| Notice of Objection to CRA assessment | 90 days from Notice of Assessment date |
| Voluntary Disclosure Program application | Before CRA contacts you — no set deadline |
Frequently Asked Questions: Canadian Tax Deadlines
What is the tax filing deadline for 2025 in Canada?
For most Canadian individuals filing their 2024 personal income tax return (T1), the deadline is April 30, 2025. Self-employed individuals and their spouses have until June 15, 2025 to file — but taxes owed are still due April 30. Corporations must file their T2 return within 6 months of their fiscal year end, with taxes due 2–3 months after year end depending on whether they qualify for the Small Business Deduction.
What happens if I miss the CRA tax filing deadline?
If you file your T1 return late and have a balance owing, the CRA charges a late-filing penalty of 5% of the unpaid balance, plus 1% per month for each full month the return is late (up to 12 months = maximum 17% penalty). Daily compound interest also accrues on any unpaid balance at the CRA’s prescribed rate plus 4%. If you’ve been late before, repeat offences trigger higher penalties (10% + 2%/month). Filing even if you cannot pay is always better than not filing — the interest on unpaid tax is significantly lower than the combined penalty + interest for not filing.
When is the RRSP deadline for 2025?
The RRSP contribution deadline for the 2024 tax year is March 3, 2025 (60 days after December 31, 2024). Contributions made by March 3, 2025 can be deducted on your 2024 T1 tax return, reducing your 2024 taxable income. The RRSP contribution room for 2024 is based on your 2023 earned income (18%, maximum $31,560) plus any unused room carried forward — confirm your exact limit on the RRSP section of your 2023 Notice of Assessment.
Do I need to pay CRA tax instalments?
You are required to make quarterly tax instalments if your net tax owing exceeds $3,000 in both the current calendar year AND in one of the two preceding calendar years. This commonly affects self-employed individuals, investors with significant non-registered income, retirees receiving RRIF payments without adequate source withholding, and rental income earners. The 2025 instalment due dates are March 15, June 15, September 15, and December 15. Missing instalments triggers interest charges from the due date — a CPA can calculate the exact amount you should pay to minimize instalment interest.
