Co-Owning a Rental Property: How to Split Income and Report It to the CRA

You bought a rental property with a spouse, sibling, friend, or business partner. The rent arrives each month and at some point the question comes up: who reports what? Can you split the income 50/50 even if one person put in more money? What does the CRA expect on the tax return?

Co-owning rental property in Canada is common, but the income-splitting rules catch a lot of people off guard. The short answer is that each co-owner must report their proportionate share of rental income — and that share is determined by the ownership interest registered on title, not by an informal agreement between the parties.

This article walks through the key rules for co-owning rental property and splitting income in Canada, with a focus on Ontario. It is general information. Confirm current rules with the CRA or a qualified accountant before you file.

Co-Ownership Is Not Automatically a Partnership

This distinction matters enormously for how income is reported.

Under the CRA's view, two or more people who jointly own a rental property are typically co-owners, not partners in a legal partnership. Partners in a business partnership file a partnership information return (T5013) and the partnership itself is treated as a separate entity for income purposes. Co-owners, by contrast, each report their own share of the rental income and expenses directly on their personal tax return.

The CRA's general position is that passive rental activity — collecting rent on a property — does not, on its own, constitute a partnership. A partnership normally involves active carrying on of a business together with a common intention to profit. Simply holding title together and dividing rent does not clear that bar.

When Does a Partnership Arise?

A landlord arrangement can cross into partnership territory when:

• The parties are actively running a business together (for example, providing substantial services to tenants, such as in short-term rental operations);
• There is a formal partnership agreement that defines profit-sharing and management responsibilities; or
• The CRA audits the arrangement and characterizes it as a business rather than passive investment income.

If the CRA reclassifies your rental activity as a partnership, the filing requirements change and penalties for non-compliance can follow. When in doubt, get advice before assuming co-ownership is the correct characterization.

Each Co-Owner Files a Separate T776

The T776 (Statement of Real Estate Rentals) is the form each co-owner includes with their personal T1 return to report their share of gross rental income and allowable expenses.

Key points:

• Each co-owner files their own T776, not a shared one.
• The form asks you to identify the other co-owners and their ownership percentages.
• Each person reports their proportionate share of both income and deductible expenses (mortgage interest, property taxes, insurance, maintenance, property management fees, and similar costs).
• If there are four co-owners with 25% each, each one reports 25% of gross rents and 25% of allowable expenses on their own return.

An accountant familiar with rental properties can help you complete the T776 accurately and catch deductions you might otherwise miss.

What Determines the Split: Title, Not Agreement

Here is where many co-owners go wrong. You cannot simply agree between yourselves to attribute more income to the lower-earning spouse or co-owner to reduce the overall tax bill. The CRA ties your reportable share to your ownership interest as recorded on title (the deed or land transfer document).

If the property is registered 70/30 in favour of one owner, that owner reports 70% of the net rental income — regardless of any private arrangement to the contrary.

This has practical consequences:

• Changing the income split after the fact by informal agreement will not hold up with the CRA.
• If you want a different split, the ownership percentages on title need to reflect it from the start.
• Changing title percentages partway through ownership triggers other tax events, including potential deemed dispositions and Land Transfer Tax considerations in Ontario.

Spousal Attribution Rules

The attribution rules under the Income Tax Act add another layer of complexity for married couples and common-law partners.

If one spouse funds the purchase of the rental property and puts title in both names (or only in the other spouse's name), the CRA may attribute the other spouse's rental income back to the funding spouse for tax purposes. The policy goal is to prevent income-splitting that has no real economic substance — you cannot simply hand a share of a property to a lower-income spouse to shift taxable income without the attribution rules stepping in.

Attribution generally applies where:

• One spouse loans money to the other at less than the prescribed interest rate (confirm the current prescribed rate with the CRA or an accountant, as it changes quarterly);
• One spouse gifts funds used to purchase the property; or
• The transfer is structured to reduce the overall household tax burden without genuine economic independence between the parties.

To avoid attribution, consider a properly documented loan at or above the prescribed rate, with actual interest payments made annually. This is a planning strategy best implemented before the property is purchased, with help from a tax lawyer or accountant.

Co-Signer vs. Co-Owner

These are not the same thing, and mixing them up causes real problems.

A co-signer (or guarantor) goes on the mortgage to help the primary borrower qualify for financing. They take on personal liability for the debt but do not necessarily have an ownership interest in the property.

A co-owner holds an interest in title. They share in the rental income, the capital appreciation, and the capital gain on sale.

Being a co-signer without being on title means you have the risk of a co-owner without the corresponding income or growth. More importantly for tax purposes: if you are not on title, you should not be reporting rental income. If you are on title, you must report your share — even if another party is actually collecting and keeping the rent.

Capital Gains on Sale

When the property is eventually sold, each co-owner reports their proportionate share of any capital gain. The gain is calculated based on the proceeds attributable to their ownership percentage minus their share of the adjusted cost base and selling costs.

As of writing, the capital gains inclusion rate and any applicable exemptions should be confirmed with an accountant or the CRA, as these rules have been subject to proposed legislative changes in recent years.

Holding a larger ownership percentage means more of the gain is in your hands — which can be beneficial if you expect to claim a principal residence exemption (generally only available for a property you actually live in) or detrimental if you are in a high tax bracket.

Documenting Your Ownership Split

Whatever percentage you and your co-owners agree on, document it clearly from the start:

• Register the correct percentages on title at the time of purchase, through your real estate lawyer.
• Draft a co-ownership agreement that sets out each party's rights, obligations, contribution to expenses, and what happens if one party wants to sell.
• Keep clean financial records: separate bank accounts for rental income and expenses, clear records of each party's contributions, and copies of the T776s filed each year.

A co-ownership agreement is especially important where the parties are not spouses. Without one, a dispute about expenses, repairs, or a forced sale can escalate into costly litigation.

Frequently asked questions