If you’re thinking about renting your basement to your cousin or letting your parents use your investment condo at a discount, you might want to think twice—at least, from a tax and mortgage perspective. The Canada Revenue Agency (CRA) is cracking down on below-market rental arrangements, particularly when it comes to family and friends. And while it may seem harmless to help someone out with cheap rent, there can be consequences that affect your eligibility for tax deductions and even your mortgage financing options.
When Personal Relationships Collide with Rental Income Rules
At first glance, it might seem like a win-win: your brother gets a place to live, and you receive a bit of rental income. But the CRA doesn’t see it quite that way. If the rent you charge isn’t at fair market value, the income may be considered non-commercial, which disqualifies you from deducting certain tax expenses.
The CRA generally defines fair market rent as what an impartial tenant would pay in similar conditions. If you’re charging a deeply discounted rate to a friend or relative, you could be operating under what’s referred to as a “non-arm’s length” agreement. In such cases, you may lose out on claims for mortgage interest, property taxes, insurance, and maintenance costs.
This becomes especially significant for landlords who rely on those deductions to offset rental income and lower their tax bills. Suddenly, that generous family favour could come with a financial cost come tax season.
How This Impacts Your Mortgage Qualification
From a mortgage lender’s point of view, rental income from a suite or investment property can play a pivotal role in approving your loan or refinancing. But here’s the catch: most lenders want proof that the income is legitimate and at market rates.
Let’s say you’re applying for a mortgage and you note that your basement apartment generates $1,000 a month. If that tenant is your cousin and you’re only charging $600 to cut them a break, lenders may review recent listings in your area and flag the discrepancy. That can lead to them discounting or ignoring the rental income altogether in your debt service ratio calculation.
Needless to say, that could mean a smaller mortgage approval—or none at all. This is particularly relevant for borrowers seeking a refinance or looking to leverage rental income for a second property purchase.
Don’t Risk It: Go Pro with Documentation
One tried-and-true way to stay in the CRA’s good books is to treat the rental as a business, especially if you hope to deduct expenses or use the income in financing applications. That starts with a signed lease agreement outlining market rent, payment terms, and the responsibilities of both parties.
Additionally, it’s essential to collect rent via traceable means—like e-transfers—instead of cash. Keep receipts, record maintenance and improvement expenses, and take note of comparable rental listings in your neighbourhood as backup documentation.
The average Canadian rent continues to climb, particularly in major urban areas. This data is not only useful in pricing your unit appropriately but also critical when justifying claims to lenders and the CRA. Setting the right rent and documenting it thoroughly can protect both your tax position and mortgage flexibility.
Is it Ever Worth Renting Below Market?
Of course, sometimes family comes first. There are situations—such as helping out an elderly parent or a child returning from university—where charging market rent doesn’t feel right. That’s totally understandable, but it’s important to go in with your eyes wide open.
If you’re not relying heavily on deductions and don’t need the rental income for financing, choosing to offer a discounted rent might be the right personal call. But remember: the CRA likely won’t recognize the arrangement as commercial, which means you’re essentially offering free housing with no tax benefit. Don’t expect any tax breaks or mortgage perks from it.
In these cases, you might want to evaluate if something like a reverse mortgage could supplement your income instead, especially if you’re on a fixed income and looking to help family while maintaining your own financial stability.
The Upshot for Canadian Homeowners
Renting to family or friends is a practice rooted in kindness, but it comes with real financial implications. As housing prices continue to evolve and mortgage rules tighten, it’s vital to understand how these arrangements affect your tax filings and borrowing potential.
With average Canadian home prices hovering around $678,282 and the national sales activity cooling in early 2024, many homeowners are exploring every avenue to ease financial strain—renting out space being one of them. Just make sure you evaluate the true cost of doing so below market.
Final Thoughts
If you’re considering renting space to someone you know, take a step back and review both the tax implications and how it could affect your mortgage options. Whether you’re thinking about leveraging the income for a new home or tapping into equity, you don’t want your generosity to derail your financial plans.
Not sure how a rent setup could affect your situation? Reach out to the team at Unrate. We’ll help you assess the numbers, explore your best mortgage rates, and make a plan that supports both your wallet and your heart.
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