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The tax on a joint venture in Canada depends on the legal shape you give it. If two owners run it as a partnership, the profit passes to each partner and is taxed on their own return. If they set up a corporation, the company pays tax first. On $200,000 of profit in Ontario, a private corporation pays $23,392 for 2026.
What is the difference between a joint venture and a partnership?
The words “joint venture” aren’t a tax structure by themselves. In the CRA’s GST/HST guidance, a partnership is people carrying on a business in common with a view to profit. A joint venture is a limited, defined project that doesn’t amount to a partnership, a trust or a corporation. That matters because a partnership counts as a person for GST/HST, while a plain joint venture doesn’t.
So decide what you are first. Priya and Dev, two builders who team up on a single townhouse project and split the revenue, may have a joint venture. Two people running a shop together every day have a partnership, whatever they call it on paper.
How is a partnership or joint venture taxed?
| Structure | Who pays the income tax | What gets filed |
|---|---|---|
| Partnership | Each partner, on their share | T5013 slips to partners, plus the partnership return when required |
| Corporation owned by the venturers | The corporation, then the owners when money comes out | The corporation’s own T2 return |
| Joint venture, not a partnership | Each venturer, on their own share of the project | Each participant’s own return |
A partner who is an individual reports the amounts on the T5013 slip on a personal return. For that reason, partners owe tax on their share even if the partnership kept the cash. Plan for that bill in advance, or one partner will be writing a cheque in April for money that never reached their account.
The T5013 return itself is required when revenues and expenses added together pass $2 million or assets pass $5 million, or when the partnership has a corporation or trust as a partner or is tiered. According to the CRA’s guide to the T5013 partnership return, it’s due on March 31 when every partner is an individual, five months after the fiscal period end when every partner is a corporation, and on whichever date comes first when it’s a mix.
Should the venture be a partnership or a corporation?
Try it with numbers. Say your business earns $200,000 and two individual owners split it evenly. Each partner is taxed on $100,000. The self-employed tax calculator gives $19,044.97 of income tax and $9,292.90 of CPP for each, so $56,675.74 for the two.
Now run the same profit through a private corporation. The corporate tax calculator shows $23,392 of combined tax, an average of 11.7%. That’s the blended rate for a calendar 2026 year, since Ontario cut its small business rate on July 1, 2026. Without the small business rate, the same profit costs $53,000 (26.5%).
It looks like a big gap. It isn’t a saving. The corporation’s number leaves out the tax when you pay the money out, which isn’t included here. Use the dividend tax calculator to see that second layer. Only money you can leave inside the company for years really benefits from the lower first layer, and plenty of owners need most of it for groceries and the mortgage.
What about GST/HST on a joint venture?
Here a joint venture has a tool a partnership doesn’t. Under section 273 of the Excise Tax Act, the operator of a qualifying joint venture and another participant can elect, on form GST21, to have the operator account for GST/HST on everything supplied or acquired for the venture. Then one person files instead of several, which you’ll like if you’ve ever chased three co-owners for receipts. A partnership can’t use the election.
The operator is the participant who handles day to day work. The CRA’s example makes a point: strategic decisions still need everyone’s consent, or it looks more like a partnership. Use the GST/HST calculator to check the tax on a single invoice.
What should a joint venture agreement spell out?
Put it in writing before the first invoice goes out. At a minimum, cover who contributes what (cash, equipment, time), how profit and losses are split, who the operator is, who signs for the venture, who keeps the books and how a partner can leave. None of that is a tax rule. It’s what stops a disagreement from turning into a tax problem, because the split on paper is what each person reports.
Where joint ventures go wrong
Most trouble starts with a handshake deal and no written agreement. Then nobody agrees who reports what, and you can’t tell which set of rules you’re under.
Associated corporations are the other trap. Corporations that are associated share one $500,000 small business limit, so putting two companies in one venture can cost you the low rate on part of the income. Payments between the venturers and their own companies are a separate topic that’s worth a professional’s time.
What this page is based on
The definitions and the election come from the Canada Revenue Agency‘s GST/HST guidance and its page for form GST21. The partnership filing thresholds and due dates are from the CRA’s T5013 guide, linked above. Corporate rates are the 2026 federal and Ontario rates, and the individual figures are the 2026 tax data behind our calculators. This site isn’t connected to the CRA or any government.
Frequently asked questions
Is a joint venture the same as a partnership?
No. For GST/HST the CRA describes a joint venture as a limited, defined project that isn't a partnership, trust or corporation.
Who pays tax on partnership income?
The partners. An individual partner reports the amounts from the T5013 slip on a personal return.
What is the GST21 form?
It lets the operator and a participant of a qualifying joint venture choose to have the operator account for the GST/HST.
When must a partnership file a T5013 return?
When revenues and expenses added together pass $2 million or assets pass $5 million, or the partnership is tiered or has a corporation or trust as a partner.
Do associated corporations get two small business limits?
No. Associated corporations share one $500,000 limit.
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