Reporting a Rental Loss in Canada: CRA Rules and When You Can Deduct It

You bought a rental property, paid the mortgage, covered the repairs, and handled the property taxes — and at the end of the year you still ended up in the red. That gap between what you spent and what you collected is a rental loss, and CRA has specific rules about when you can claim it and when they will push back.

If you are an Ontario landlord trying to figure out whether your losses are deductible — or you have received a CRA letter challenging a rental loss you already claimed — this guide walks through how the rules work in plain language.

One important note before we begin: tax law changes and individual facts matter enormously. Work with a qualified accountant when filing your return, and speak with a lawyer if CRA disputes your losses.

What Is a Rental Loss?

A rental loss arises when your allowable rental expenses for the year exceed the gross rent you collected. Allowable expenses generally include mortgage interest (not principal), property taxes, insurance, repairs and maintenance, advertising, property management fees, and a portion of utilities you pay on behalf of tenants. Capital Cost Allowance (CCA) — the depreciation deduction — is also on that list, but with a critical restriction explained below.

If those costs add up to more than your rental income, the shortfall is your rental loss for the year.

How a Rental Loss Offsets Your Other Income

Here is where rental losses differ from most other losses in the Canadian tax system. A rental loss is treated as a non-capital loss that offsets income from any source in the same tax year. That means if you earned a salary of $90,000 and had a rental loss of $12,000, you generally report net income of $78,000. The loss reduces your taxable income dollar for dollar, which can meaningfully lower the tax you owe on your employment or investment income.

This is different from a capital loss, which can only be applied against capital gains. A rental loss is broader in its reach — but only for the year it arises. Unlike business losses, which can be carried back three years or forward twenty years, a rental loss offsets current-year income only. You cannot carry an unused rental loss back to an earlier return or forward to a future year. If you cannot use it all in the year it arises, it disappears.

That limitation makes the question of whether the loss is deductible at all especially important.

The Reasonable Expectation of Profit (REOP) Doctrine

CRA's most common challenge to rental losses is the argument that you never had a reasonable expectation of making a profit. The legal principle has evolved over decades of court decisions, but the practical concern is this: if CRA concludes your rental activity is a hobby or a lifestyle choice rather than a genuine income-earning venture, they can deny the losses entirely.

The Supreme Court of Canada's decision in Stewart v. Canada (2002) narrowed CRA's ability to apply REOP to purely commercial activities. But a personal-use element — a property you sometimes use yourself, a cottage you rent only part of the year, a property shared with family — reintroduces the REOP analysis. CRA applies a two-part test:

1. Is the activity commercial in nature, or does it have a personal element?
2. If there is a personal element, was the activity pursued in a sufficiently commercial manner that a reasonable person would expect a profit?

Factors CRA Considers

When reviewing rental losses with a personal-use element, CRA looks at a range of factors. None is determinative on its own, but together they build a picture of whether you were running a genuine rental business:

• History of losses. Repeated losses year after year without improvement raise a flag. CRA expects a reasonable investor to change strategy if losses persist.
• Nature and scale of the activity. A single recreational property rented only a few weeks a year looks very different from a multi-unit residential building with continuous tenants.
• Potential for profit. Even if you are losing money now, is there a realistic path to profitability — for example, if the mortgage pays down and rents rise?
• Personal use. How many days do you or family members use the property? High personal use weakens the commercial character of the activity.
• Steps taken to improve profitability. Did you raise rents, reduce costs, or actively market the property?

The Start-Up Period

CRA acknowledges that a new rental operation may not be profitable right away. A reasonable start-up period — typically the first few years — is generally tolerated. But that tolerance has limits. If losses continue long past any defensible launch phase with no clear path to profit, CRA is more likely to challenge the deduction.

The CCA Restriction: You Cannot Use Depreciation to Create or Deepen a Loss

This is one of the most misunderstood rules in rental taxation. Even though CCA (depreciation) is an otherwise allowable expense, CCA cannot be used to create or increase a rental loss. You can claim CCA to reduce your rental income to zero, but not to push it into negative territory.

If your rental property is already showing a loss before CCA, you claim zero CCA that year. If your rental income is $5,000 and your other expenses are $4,000, you can claim up to $1,000 in CCA — but no more, even if your full CCA entitlement is higher.

Unclaimed CCA is not lost. It carries forward in your Undepreciated Capital Cost (UCC) balance and can be claimed in future years when the property generates a surplus.

If CRA Challenges Your Rental Loss

If CRA audits your rental losses, you have rights throughout the process. CRA will typically request documentation — leases, bank records, expense receipts, evidence of advertising — and may issue a proposal letter outlining their position before reassessing. You have the opportunity to respond with your records and arguments before a reassessment issues.

If you disagree with the reassessment, you can file a Notice of Objection within 90 days. That starts a formal review process. Work with a tax lawyer before responding to a CRA audit or filing an objection, particularly if the amounts are significant.

Record-Keeping and Demonstrating Genuine Profit Intention

The strongest defence against a REOP challenge is contemporaneous documentation showing you ran the rental as a business from day one. Keep:

• Signed leases and tenant correspondence
• All expense receipts, organized by category and property
• A rental log showing when the property was available for rent versus personally used
• Records of advertising and tenant searches
• Notes or projections showing how you expected to reach profitability

CRA can request records going back several years. Digital records are fine; the key is that they exist and are organized.

Frequently asked questions