Sole Proprietorship vs Partnership in Ontario
Compare sole proprietorships and general partnerships in Ontario: ownership, liability, taxes, registration and when a partnership agreement matters.
structures4 min readPublished October 5, 2026
Side by side
| Sole proprietorship | General partnership | |
|---|---|---|
| Owners | One | Two or more |
| Liability | Unlimited, personal | Unlimited, shared and joint |
| Tax | Owner's T1 | Each partner's T1 on their share |
| Registration | Name in the OBR (if not your own name) | Name in the OBR (if not partners' names) |
Get a partnership agreement
Without one, Ontario's Partnerships Act default rules apply, including equal profit sharing. An agreement should cover contributions, profit split, decision-making, and what happens when a partner leaves.
Consider incorporating
If liability is a concern, a corporation may be a better fit. See business structures compared and sole proprietorship in Ontario.
Frequently asked questions
- Is each partner liable for the whole partnership's debts?
- In a general partnership, yes. Each partner is jointly liable for the partnership's debts.
Official sources
- Ontario Business Registry ↗— file and search Ontario registrations
- Corporations Canada ↗— federal incorporation
- Canada Revenue Agency — business ↗— BN, HST, payroll, T2
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