When do I need to file my taxes in 2025? What if I miss the CRA deadline? How do I even figure out which business tax deadlines apply to me?
If you’ve asked yourself any of these questions, you’re in the right place.
Tax deadlines for businesses in 2025 can be a headache, especially with different dates for sole proprietors, corporations, and partnerships. Add in things like income tax, tax returns, GST/HST, CRA penalties, and due dates, and it gets overwhelming fast.
So we’re breaking it down. Here’s everything business owners in Canada need to know about 2025 tax deadlines and how to stay on top of them without losing your mind.
Key Takeaways
- Stay ahead of your 2025 business taxes by planning, organizing, and using the right tools
- Work with a tax expert to meet all CRA rules and compliance needs
- Filing on time helps protect your income, access to refunds, and peace of mind
Understanding the Major Business Tax Deadlines in 2025

What counts as a business tax deadline?
Tax deadlines in Canada cover more than just income tax. If you’re running a business, you’ll likely have to deal with:
- Corporate tax return deadlines if you’re incorporated
- Personal income tax if you’re a sole proprietor
- Payroll tax and tax withholding for employees
- GST/HST filing deadlines
- Estimated tax payments if applicable
- Harmonized sales tax and goods and services tax (Canada) for registered businesses
Your fiscal year and business structure determine a lot of this. So always check if you’re following a calendar year or something different.
Who needs to follow these CRA tax deadlines?
Pretty much every business in Canada. Whether you’re a one-person sole proprietorship, a growing corporation, or part of a partnership, you’ve got filing obligations.
If you’re new to this, here’s a quick cheat sheet:
- Sole proprietors: File your personal income tax return with your business income included
- Corporations: Submit a corporate tax return six months after your fiscal year-end
- Trusts (law) and partnerships may have different filing rules under Canadian law and common law
- Everyone: Don’t forget about GST/HST, payroll taxes, taxable income, and eligible tax credits
Missing deadlines? That could mean interest, fees, penalties, or even a CRA audit.
Important CRA Filing & Tax Payment Deadlines in 2025

Business tax filing deadlines for sole proprietors
If you’re a sole proprietor, your business tax deadline lines up with your personal income tax return.
Deadline to file: June 15, 2025 (but since that’s a Sunday, file by Monday, June 16)
Payment due date: April 30, 2025
Even though you get more time to file, your tax payment is still due by the end of April. This applies to your 2024 tax year income.
Key corporate tax deadlines for incorporated businesses
Got a corporation? Your corporate tax return is due six months after your fiscal year-end.
Example: If your year-end is December 31, 2024:
- File your T2 return by June 30, 2025
- Pay your corporate taxes by March 31, 2025 if you are not eligible for the small business deduction. Otherwise, eligible Canadian-controlled private corporations (CCPCs) may have until June 30, 2025 to pay.
If your year-end is different, adjust accordingly. CRA goes by the month after the end of your fiscal period. These are key corporate tax deadlines to watch.
Payment deadlines and due dates for 2025
Always pay attention to when your tax payment is due. In most cases, payments are due two months after your fiscal year-end.
However, Canadian-controlled private corporations that meet certain criteria may have up to three months to pay.
Late payments? Expect interest, fines (penalty), missed tax refunds, and extra scrutiny.
Breakdown of Monthly Tax Filing Deadlines in 2025
January to March 2025 tax deadlines
- Payroll remittances for December 2024: due January 15
- Corporate tax payments for December year-ends: due March 31
- Final RRSP (Registered Retirement Savings Plan) contributions for the 2024 tax year: due March 3, 2025 (Note: March 1 is a Saturday, so the deadline moves to the next business day.)
April to June 2025 tax deadlines
- Personal tax return deadline: April 30
- Self-employed income tax return deadline: June 15, Sunday (file by June 16)
- Tax owing must be paid by April 30, even if your return is due later
July to September 2025 tax deadlines
- GST/HST and quarterly tax filing wrap up for some businesses
- Tax credit and SR&ED (Scientific Research and Experimental Development Tax Credit Program) deadlines may apply based on the tax year ends
October to December 2025 tax deadlines
- Get ready for tax time and year-end prep
- Tie up loose ends like verifying receipts, accounts payable, and expenses
- Review your revenue, clean up your books, and check for tax deductions
Canadian Income Tax Deadlines and What They Mean for Your Business

Income tax deadlines vs business tax deadlines
- Personal income tax: due April 30
- Corporate tax returns are due six months after your fiscal year-end
Know the difference. Your tax return is due on a different filing deadline depending on how your business is set up.
Personal income tax deadlines affecting sole proprietors
If you’re self-employed, you must file your personal income tax by June 15 and pay any income tax owing by April 30.
You’re reporting both personal income and business income in one go.
GST/HST Filing Deadlines (2025)
- Monthly/Quarterly filers: Returns and payments are due one month after the end of each period
- Annual filers (Dec 31 year-end):
- Payment due: April 30, 2025
- Return due: June 15, 2025 (file by June 16 since June 15 is a Sunday)
- Payment due: April 30, 2025
Tax Instalment Due Dates for Individuals (2025)
If you’re required to pay taxes by instalments, your quarterly due dates are:
- March 15, 2025
- June 16, 2025 (June 15 is a Sunday)
- September 15, 2025
- December 15, 2025
What happens if you file your income taxes late?
- CRA charges interest and applies a minimum tax penalty
- You could lose your tax refund or face delays in benefits
- Late postmark dates can make the difference in filing penalties
How to File My Taxes on Time as a Business Owner
Tips to stay on top of tax filing deadlines
- Use Intuit tools like QuickBooks and TurboTax for accounting and tracking deadlines
- Know your filing due date, your fiscal year, and whether you need to file for a corporation, partnership, or trust (law)
Common mistakes businesses make during tax time
- Misreporting income and expenses
- Missing key tax filing documents or submitting incorrect information
- Forgetting to apply for applicable tax credits
Using accounting software or hiring a professional
Use digital tools or speak with a tax expert to improve accuracy and precision. It can save you money, time, and prevent CRA issues.
What to Do If You Miss a CRA Tax Deadline in 2025
Late filing penalties and interest
- Taxes late means CRA applies interest rate charges and fees
- Filing late can impact your tax returns in Canada and delay important benefits
How to correct a missed tax return
- File your return fast and explain delays to stay in regulatory compliance
- Ask for CRA leniency through their support channels
Dealing with the CRA if you’re behind on taxes
- Communicate, negotiate, and be proactive to avoid major penalties
- Knowing the pricing of penalties helps plan better next time
How 2024 Financial Records Affect 2025 Tax Filing
- Use 2024 financials to file your 2025 tax return accurately
- Make sure all receipts, expenses, and accounts payable are in order
- Keep track of trademark-related expenses or intellectual property filings
Special Considerations for Small Business Tax Deadlines in 2025
- If you’re a small business owner, know how tax deadlines vary based on business structure
- Consider using a tax-free savings account for optimized planning
- CRA also provides updates and help lines for small businesses
Corporate Tax Deadlines 2025: What Incorporated Businesses Need to Know

Key CRA corporate tax return due dates
- Know when your corporate tax return is due based on Canada Revenue Agency regulations
Final tax responsibilities at year-end
- Prep all final forms and verify against CRA checklists
- Confirm all tax payments, deductions, and credits are reported
FAQs
When do I have to file taxes as a business owner in 2025?
April 30 if you’re a sole proprietor. Six months after the year-end for corporations.
What happens if I file late?
You could owe interest, face a fine, and miss your tax refund.
Can I get an extension?
Not usually. CRA deadlines in 2025 are strict unless the deadline is extended by CRA.
Where can I find updates?
CRA’s website or accounting tools like QuickBooks.
How do I know if I need to file GST/HST?
If your business earns more than $30,000 in revenue in a single calendar quarter or over four consecutive quarters, you generally need to register for and file GST/HST with the Canada Revenue Agency. Always confirm your specific obligations based on your business structure and services.
Conclusion
When it comes to business tax deadlines in 2025, it’s all about being prepared.
Know your due dates, track your tax year, and stay ready for tax season.
Whether you’re filing a personal income tax return or a corporate tax return, staying ahead of CRA saves you time and money.
Let’s face it. Nobody wants to deal with taxes late.
Get ahead of your 2025 tax deadlines, and you’ll thank yourself later.
Need help filing your business taxes?
We offer professional tax services, including corporate tax filing, GST/HST returns, and personalized guidance to help you stay compliant with CRA deadlines. Whether you’re a small business owner or running a growing corporation, we’ve got your back.
Get in touch today and let’s make tax time simple.
Published by Vira Marketing