How to Analyze a Rental Property in Canada (Step by Step)

Most people who buy rental properties in Canada make the same mistake: they fall in love with the property before they run the numbers. By the time they realize the deal does not work, they are already emotionally committed.

This guide walks through the five calculations every Canadian investor should run before making an offer. These are not complicated, but they need to be done in the right order, with the correct Canadian mortgage math.

Why Canadian Deal Analysis Is Different

Most online calculators and real estate guides are written for the US market. Two things make Canadian analysis different:

• Semi-annual compounding. Under the Canadian Interest Act, mortgage interest compounds twice per year, not monthly. A US calculator will give you a slightly different payment amount for the same rate. The difference is small on each payment but compounds over a 25-year amortization.
• The OSFI stress test. Canadian lenders must qualify you at the higher of your contract rate plus 2%, or 5.25%. This affects how much you can borrow and whether a deal actually pencils out at qualifying rates.

Both of these are built into the free calculators on this page and into Rental Analyst's deal analyzer.

Step 1: Calculate Your Mortgage Payment

Start with your financing. Before you can calculate cash flow, you need to know what the mortgage costs each month.

For a Canadian mortgage, the formula is:

• Effective Annual Rate (EAR) = (1 + annual rate / 2)² - 1
• Monthly rate = (1 + EAR)^(1/12) - 1
• Payment = Principal × monthly rate / (1 - (1 + monthly rate)^(-n))

Where n is the total number of monthly payments (amortization years × 12).

As an example: a $520,000 mortgage at 4.5% over 25 years has a monthly payment of approximately $2,844 using Canadian semi-annual compounding.

Use the Canadian Mortgage Payment Calculator to run this instantly for your numbers.

Step 2: Calculate Net Operating Income (NOI)

NOI is your rental income minus all operating expenses, before the mortgage. This is the foundation of every other metric.

Annual Gross Rental Income
Start with your expected annual rent. If you have a two-unit property at $2,200 per unit, that is $52,800 gross.

Subtract a vacancy allowance
Most analysts use 5% as a conservative assumption, even in tight markets. This accounts for tenant turnover and lease-up periods. At 5%, your effective gross income on $52,800 is $50,160.

Subtract operating expenses
Operating expenses include property tax, insurance, maintenance, and property management if applicable. They do not include mortgage payments.

A rough benchmark: operating expenses typically run 35 to 50% of gross rental income depending on property type and whether you self-manage. For a house, budget at minimum:

• Property tax: varies by municipality, typically 0.5 to 1.5% of assessed value annually
• Insurance: $1,200 to $2,500 per year
• Maintenance: 1% of property value annually is the standard rule of thumb
• Property management: 8 to 12% of rent if outsourced

NOI = Effective Gross Income - Operating Expenses

Step 3: Check Your DSCR

Debt Service Coverage Ratio (DSCR) is the metric lenders use to decide whether to finance your rental property. It answers one question: does the property earn enough to cover the mortgage?

DSCR = NOI / Annual Mortgage Payments

A DSCR of 1.0 means income exactly covers the mortgage. Most Canadian lenders require a minimum of 1.20x to 1.25x for investment property financing. For a full breakdown of what your number means and how lenders use it, see What Is a Good DSCR for a Canadian Rental Property. CMHC requires 1.10x for insured multi-family properties.

If your DSCR is below 1.0, the property does not generate enough income to cover its mortgage at current rent levels. That does not automatically mean the deal is bad, but it means you are subsidizing the property from other income, which changes the investment thesis.

Use the DSCR Calculator to check your number.

Step 4: Calculate Cash-on-Cash Return

Cash-on-cash return tells you what your invested cash is actually earning. Unlike cap rate, it accounts for your mortgage.

Cash-on-Cash Return = Annual Pre-Tax Cash Flow / Total Cash Invested

Total cash invested includes your down payment, closing costs, and any immediate repairs or renovations. In Ontario, closing costs typically add 2 to 4% of purchase price on top of the down payment due to provincial land transfer tax and legal fees.

Annual pre-tax cash flow = (Monthly Rent - Monthly Expenses - Monthly Mortgage Payment) × 12

A cash-on-cash return of 5 to 8% is generally considered moderate for Ontario. Above 8% is strong. Below 5% means your cash is working harder elsewhere unless you are banking on appreciation.

Step 5: Run the Stress Test

Even if a deal works at today's rates, you need to know what happens at renewal. Canadian mortgages have 1 to 5-year terms. When your term ends, you renew at prevailing rates, which may be significantly higher.

OSFI's stress test requires lenders to qualify you at the higher of your contract rate plus 2%, or 5.25%. This is not just a qualification hurdle, it is also a useful planning tool: if your deal only works at today's rate and breaks at the stress test rate, you are carrying more risk than you may realize.

Two calculations to run:

• Stress test qualification: Can you qualify for this mortgage at the stress test rate? Use the OSFI Stress Test Calculator.
• Renewal impact: What happens to your monthly payment if rates are 1%, 2%, or 3% higher at renewal? Use the Mortgage Renewal Impact Calculator.

A deal that still generates positive cash flow at 2% above your current rate is significantly more resilient than one that breaks even today. If you are approaching renewal, see What Happens to Your Cash Flow at Renewal for a full walkthrough.

Putting It Together: A Quick Example

Here is how these five steps work on a real deal. Assume a duplex in Hamilton, Ontario:

• Purchase price: $699,000
• Down payment: 20% ($139,800)
• Mortgage: $559,200 at 4.5%, 25 years
• Monthly mortgage payment: approximately $3,062
• Monthly rent (both units): $4,200
• Annual operating expenses: $14,400 (property tax, insurance, maintenance)

NOI: ($4,200 × 12 × 0.95) - $14,400 = $47,880 - $14,400 = $33,480

DSCR: $33,480 / ($3,062 × 12) = $33,480 / $36,744 = 0.91x

A DSCR of 0.91x is below most lenders' minimums. This deal does not qualify for standard investment property financing at these numbers without renegotiating the price or finding higher rents.

Cash flow: ($4,200 × 0.95) - $1,200 - $3,062 = $3,990 - $1,200 - $3,062 = -$272/month

Negative cash flow. The property costs $272/month more than it earns. Whether that is acceptable depends on your conviction about Hamilton appreciation and your personal cash reserves.

This is exactly the kind of analysis that takes 30 seconds in Rental Analyst and 30 minutes on a spreadsheet.

The Cap Rate Question

You may have noticed cap rate is not in the five steps above. That is intentional.

Cap rate (NOI / Purchase Price) is most useful for comparing properties against each other or against market benchmarks, not for making a buy or pass decision on a specific deal. For a side-by-side comparison of all three metrics, see Cap Rate vs Cash-on-Cash vs DSCR. In Ontario, cap rates range from roughly 3 to 5% in Toronto to 5 to 7% in secondary markets like Hamilton, London, or Windsor.

Low cap rate does not mean a bad deal if you have conviction on appreciation. High cap rate does not mean a good deal if the property has deferred maintenance or poor tenants. Use cap rate for screening and market context, not as your primary decision metric.

Calculate yours with the free Cap Rate Calculator.

Run Your Deal in Under 30 Seconds

The calculations above are straightforward but tedious to do manually, especially when you want to model different scenarios: what if the rent is $200 lower? What if rates are 1% higher at renewal? What does this look like in year 10?

Rental Analyst runs all five steps simultaneously, with the correct Canadian semi-annual compounding, OSFI stress test built in, and 30-year projections. Free to start, no account needed to get your numbers.