If you bought or refinanced a rental property in Ontario between 2020 and 2022, you are either facing renewal now or you will be within the next 12 months. The rates you locked in then, many between 1.5% and 2.5%, are not the rates available today. The result is a payment shock that is turning previously cash flow positive properties negative and forcing small landlords across the province to reassess whether holding still makes sense.
This post walks through what the renewal wave looks like in real numbers, why 2026 is particularly acute for small landlords, and what to model before your letter arrives.
Why 2026 Is a Pressure Point
Canadian mortgages typically run in 5-year terms. The wave of investors who purchased or refinanced at pandemic lows in 2020 and 2021 are now hitting their first renewal at prevailing rates. According to the Canada Mortgage and Housing Corporation, the national purpose-built rental vacancy rate climbed to 3.1% in 2025, up from 2.2% the year before, as record rental completions met softer demand driven by slower population growth and declining international student numbers. In Toronto, the purpose-built vacancy rate hit 3% for the first time since the pandemic. In Hamilton, it rose to 3.6%, the highest since COVID.
This means the renewal wave is landing at exactly the wrong time. Mortgage costs are jumping while the rental market has softened. Landlords who bought on the assumption of rising rents and tight vacancies are now facing higher costs and more competition to fill units.
The Payment Shock in Real Numbers
Here is what renewal actually looks like on a Hamilton duplex purchased in 2021. The numbers use the correct Canadian semi-annual compounding formula.
Original mortgage at purchase: $520,000 at 2.1%, 25-year amortization. Monthly payment: approximately $2,228.
Remaining balance at renewal (after 5 years): approximately $462,000. Remaining amortization: 20 years.
| Renewal Rate | New Payment | Increase vs 2021 | Annual Impact |
|---|---|---|---|
| 4.5% | ~$2,906 | +$678/mo | +$8,136/yr |
| 5.0% | ~$3,048 | +$820/mo | +$9,840/yr |
| 5.5% | ~$3,193 | +$965/mo | +$11,580/yr |
What This Does to Cash Flow
The same Hamilton duplex rents both units for a combined $3,900 per month. Operating expenses (property tax, insurance, maintenance) run $1,150 per month.
| Scenario | Monthly CF |
|---|---|
| 2021 at 2.1% | +$522/mo |
| Renewal at 4.5% | -$156/mo |
| Renewal at 5.0% | -$298/mo |
| Renewal at 5.5% | -$443/mo |
A property that was generating $522 per month in 2021 is now producing negative cash flow at every realistic renewal rate. The landlord is subsidising the property between $156 and $443 per month depending on the rate they negotiate. Over a 5-year term at 5.0%, that is $17,880 in out-of-pocket cash to hold an asset that was once self-financing.
Why Small Landlords Are Hit Hardest
Large purpose-built rental operators have diversified income across hundreds of units. They can absorb a vacancy or a rate increase across a portfolio. A small landlord with one or two properties has no such buffer. One non-paying tenant, one unexpected repair, or one renewal at a higher-than-expected rate can erase months of cash flow.
The problem is compounded for landlords with rent-controlled units. Ontario's 2026 rent increase guideline is 2.1%, the lowest in four years and down from 2.5% in 2025. Insurance premiums, property taxes, and maintenance costs are all rising faster than that. The cost side of the equation is growing at 3% to 8% annually while the revenue side is capped at 2.1% for sitting tenants. For a full breakdown of what this gap looks like over time, see Ontario Rent Control in 2026: What the 2.1% Guideline Means for Your Cash Flow.
Negative Cash Flow Does Not Automatically Mean Sell
Cash flow is one metric. The full picture includes principal paydown, appreciation, and tax treatment. Even at 5.0% on a $462,000 balance, approximately $700 to $800 per month goes to principal in the early renewal years. That is equity accumulating even while the property costs you money each month.
The question is not whether cash flow is negative. The question is whether the total return from holding, including equity buildup and any appreciation, justifies the monthly subsidy given your alternatives. That requires modeling all three paths: hold, sell, and refinance. For a framework to run that analysis, see Hold, Sell, or Refinance? Run the Numbers.
Three Things to Do Before Your Letter Arrives
1. Know your renewal date and start modeling 90 to 120 days out. Most lenders allow early renewal within this window without penalty. Log into your Rental Analyst dashboard and confirm the renewal date shown in the Property Details panel matches your actual mortgage documents. If it does not, update it now so the projections reflect reality.
2. Model the cash flow impact at three rate scenarios. Use the Renewal tab in Rental Analyst to enter your current balance, remaining amortization, and three rate assumptions: the current best market rate, your current rate plus 0.5%, and your current rate plus 1%. The tool shows your new monthly payment, annual impact, and how the renewal flows through to your 10-year and 30-year projections. For the step-by-step checklist, see Your Mortgage Renewal Checklist.
3. Get competing quotes before accepting your lender's offer. Your existing lender's renewal offer is rarely their best rate. A mortgage broker with access to multiple lenders can often negotiate 0.25% to 0.50% below posted rates. On a $462,000 balance, 0.25% savings is approximately $96 per month, or $5,760 over a 5-year term.
What the Next 12 Months Look Like
RBC Economics projects that Canada's rental vacancy rate will continue rising through 2026 as new supply keeps entering the market while population growth remains slower than the 2022 to 2023 peak. Turnover rents have already softened in Toronto, Hamilton, Vancouver, Calgary, and Halifax. The expectation of easy rent increases on vacancy, which defined the 2021 to 2023 period, is no longer a reliable planning assumption.
For small landlords, this means the renewal decision cannot be made in isolation from the broader market context. A rate that felt manageable at $4,200 per month in rent may not feel manageable if the comparable market rent in your neighbourhood has slipped to $3,700. Model both the rate scenario and the rent scenario together before committing to a new term.
Model your renewal before the letter arrives
Run the full projection in Rental Analyst
Enter your property and see exactly what each renewal rate scenario does to your cash flow, equity, and 30-year projection.
This post is for informational purposes only and does not constitute financial, legal, mortgage, or tax advice. Vacancy and rent data sourced from CMHC Rental Market Report 2025 and RBC Economics (April 2026). Mortgage payment figures are illustrative estimates using Canadian semi-annual compounding. Consult a qualified professional before making any investment decision.