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Co-owning a rental property: how to split income and expenses fairly

Buying a rental with a sibling, a friend or a spouse spreads the cost, but it also means every dollar has to be split. The money usually doesn't move evenly: one owner pays the roof, another covers a vacancy. Here's how to track it so the books, and the tax returns, match what you agreed.

Updated October 21, 2026 · by Tidy Landlord

Start with the ownership share

For tax, the split follows ownership. IRS Publication 527 says that if you own a part interest in a rental property, you report your part of the rental income, and you can deduct expenses you paid according to your percentage of ownership. The CRA's guide T4036 says a co-owner's share of rental income or loss depends on their share of ownership, and that the percentage should stay the same each year unless the ownership changes.

So the first number to pin down is each owner's percentage, as it appears on title. Write it at the top of your records and use it for every split.

When one owner pays more than their share

This is where most co-owner books go wrong. Publication 527 gives an example: Roger owns half of a rental house and pays $968 for repairs. He deducts $484, his 50% share, and is entitled to reimbursement for the other half from the co-owner. Paying a bill doesn't make the whole expense yours; it creates an amount your co-owner owes you.

That means you need two views of the same money:

  • The property's books: total rent and total expenses, split by ownership share. This is what each owner reports.
  • The owners' account: who actually paid or received what, compared with their share. The difference is what each owner owes or is owed.

Co-ownership or partnership?

The label changes how you file.

Canada: T4036 says that most of the time, if you own a rental with one or more people, including your spouse or common-law partner, the CRA considers you a co-owner. A partnership is a relationship between people carrying on a business in common to make a profit, and co-owning a rental property as an investment does not by itself make a partnership. If you're unsure, the CRA points to your province's partnership law and Income Tax Folio S4-F16-C1. Co-owners each file Form T776, enter their share of the property's net income or loss, and list the other co-owners in Part 2. Expenses you paid personally and didn't deduct elsewhere go on line 9945, other expenses of the co-owner.

US: co-owners generally each report their share on Schedule E. Publication 527 says to use Form 1065 if your rental activity is a partnership, including one with your spouse unless it is a qualified joint venture. Whether you have a partnership depends on your facts, so check with a tax professional before deciding.

Either way, the property's books look the same. What changes is how the totals reach each owner's return.

A worked example

These figures are made up to show the method. Ana owns 60% of a duplex and Ben owns 40%.

  • Rent for the year: $36,000, all deposited to Ana's account.
  • Expenses: $14,000. Ana paid $6,000; Ben paid $8,000, including a $5,000 furnace repair.
  • Net income: $36,000 minus $14,000 = $22,000. Ana's share is $13,200 and Ben's is $8,800. Those are the amounts they report.

Now the owners' account. Ana's share of the rent is $21,600, but she received $36,000, so she holds $14,400 of Ben's rent. Ana's share of the expenses is $8,400, but she paid only $6,000, so Ben covered $2,400 of hers. Ben's 40% share of the expenses is $5,600, and he paid $8,000, so he's out $2,400 more than his share. To settle up, Ana pays Ben $14,400 for his rent, and Ben is owed another $2,400 for paying more than his share of expenses, so Ana pays Ben $16,800. After that, each owner has $13,200 and $8,800 in hand, matching their shares.

Capital and loans between owners

Track the down payment and any later cash each owner puts in separately from day-to-day expenses. If one owner advances money that the others agree to repay, record it as a loan between owners rather than an expense. A written co-ownership agreement that covers shares, who pays what, how to settle up and what happens if someone wants out will save a lot of arguments.

A simple routine

  1. Record every rent payment and expense once, with the date, amount and which owner paid or received it.
  2. Each month, split the totals by ownership share.
  3. Each quarter, or at least at year end, settle the owners' account so nobody carries a large balance.
  4. At tax time, give each owner their share of income and expenses, plus the list of expenses they paid personally.

Frequently asked questions

How do co-owners split rental income for taxes?

By ownership share. IRS Publication 527 says a part owner reports their part of the rental income and deducts expenses according to their percentage of ownership. The CRA's T4036 says a co-owner's share depends on their share of ownership.

What if one co-owner pays all the expenses?

Each owner still deducts only their share. Publication 527's example says the owner who paid is entitled to reimbursement from the co-owner for the rest, so track it as an amount owed between owners.

Is co-owning a rental with my spouse a partnership in Canada?

Usually not. T4036 says that if you own a rental property with your spouse or common-law partner you are a co-owner, and co-owning a rental property as an investment does not by itself make a partnership.

Do co-owners file one Form T776 or separate ones?

Each co-owner reports their own share of the net income or loss on their own Form T776 and lists the other co-owners in Part 2.

Sources

This guide is general information to help you organize your records. It is not tax, legal or accounting advice, and rules and amounts change every year. Confirm how they apply to you with a qualified tax professional or the official sources linked above before you file.

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