This guide reflects the rules for the tax year ending December 31, 2025.
It applies to individuals filing their 2025 tax return in 2026.
Choosing the right business structure is one of the most important decisions a self-employed Canadian can make. The two most common structures are:
- Sole proprietorship
- Corporation (incorporated business)
This guide explains the differences, tax implications, costs, and when incorporation makes sense.
🧭 1. What Is a Sole Proprietorship? #
A sole proprietorship is the simplest business structure.
✔ Key features: #
- You and the business are legally the same
- You report income on your personal tax return
- Easy to start and low cost
- No separate legal entity
✔ Best for: #
- Freelancers
- Contractors
- Gig workers
- Small service businesses
🏢 2. What Is a Corporation? #
A corporation is a separate legal entity.
✔ Key features: #
- Limited liability
- Separate tax return (T2)
- Corporate tax rates
- More administrative work
- More costs
✔ Best for: #
- Growing businesses
- High-income earners
- Businesses with employees
- Businesses needing liability protection
💰 3. Tax Differences: Sole Prop vs. Corporation #
✔ Sole Proprietorship #
You pay personal income tax on all profits.
\[ \text{Business income} \rightarrow \text{T1 return} \]You also pay:
- CPP on net income
- GST/HST (if registered)
✔ Corporation #
The corporation pays corporate tax on profits.
\[ \text{Corporate income} \rightarrow \text{T2 return} \]You pay personal tax only when you:
- Pay yourself a salary
- Pay yourself dividends
This creates tax planning opportunities.
📉 4. Corporate Tax Rates (2025) #
Small Canadian-controlled private corporations (CCPCs) get the small business deduction.
Approximate rates (2025): #
| Province | Small Business Rate |
|---|---|
| Ontario | ~12.2% |
| BC | ~11% |
| Alberta | ~8% |
| NL | ~12% |
| NS | ~11.5% |
These are much lower than personal tax rates.
🧮 5. When Incorporation Saves You Money #
Incorporation makes sense when:
✔ You earn more than you need to live on #
This allows you to leave money in the corporation and pay lower corporate tax.
✔ You want to split income with a spouse (if eligible) #
Through dividends or payroll.
✔ You want to defer taxes #
Corporate tax deferral can be significant.
✔ You want to build retained earnings #
Useful for:
- Investments
- Equipment
- Hiring
- Expansion
🧾 6. When You Should NOT Incorporate #
Incorporation may not be beneficial if:
- You earn less than $80,000
- You need all your income personally
- You want simple bookkeeping
- You don’t need liability protection
- You don’t want extra costs
💸 7. Costs of Incorporation #
✔ One-time costs: #
- Federal incorporation: ~$200
- Provincial incorporation: $200–$400
- NUANS name search: ~$13–$50
✔ Annual costs: #
- Corporate tax return (T2): $800–$2,000
- Bookkeeping: $500–$2,000
- Annual corporate filings: $20–$50
🛡️ 8. Liability Protection #
✔ Corporation #
Your personal assets are generally protected.
✔ Sole proprietorship #
You are personally liable for:
- Debts
- Lawsuits
- Contracts
High-risk businesses often incorporate for this reason alone.
🧮 9. Example: Tax Comparison #
Scenario:
You earn $150,000 in business income.
Sole Proprietorship #
All $150,000 is taxed personally.
Corporation #
You pay:
- Corporate tax on $150,000
- Personal tax only on what you withdraw
If you leave $50,000 in the corporation:
- You defer personal tax
- You save thousands in the short term
🧾 10. Paying Yourself: Salary vs. Dividends #
✔ Salary #
- Creates RRSP room
- CPP contributions required
- Deductible to the corporation
✔ Dividends #
- No CPP
- No RRSP room
- Lower personal tax rate
Most incorporated business owners use a mix.
🧩 11. GST/HST Differences #
Sole proprietorship #
GST/HST is filed under your personal account.
Corporation #
GST/HST is filed under the corporation’s business number.
🧾 12. How to Switch from Sole Prop to Corporation #
- Incorporate federally or provincially
- Register for a new GST/HST number
- Transfer assets (optional)
- Open a corporate bank account
- Update contracts and invoices
- File a final T2125 for your sole prop
❓ 13. Frequently Asked Questions #
Do I need a lawyer to incorporate? #
No — but it can help for complex structures.
Can I incorporate later? #
Yes — many businesses start as sole props.
Do I need a separate bank account? #
Yes — for corporations.
Can I pay myself cash from the corporation? #
No — all withdrawals must be recorded as salary or dividends.
