You found a listing that looks promising. The photos are decent. The asking price seems reasonable. The listing agent says it is a “great investment opportunity.” Now what?
Calling a mortgage broker right now would be moving too fast. Before you apply for financing, you need to know whether the deal actually works. Not whether it looks good on paper. Not whether the listing description sounds exciting. Whether the actual numbers, your numbers, produce returns that justify the risk, the capital, and the effort.
This is the evaluation framework that separates investors who build wealth from those who buy problems. Walk through every step before you pick up the phone to discuss financing.
Step 1: The 1 Percent Rule as a Quick Filter
Before you dive into detailed analysis, apply the 1 percent rule as a quick screening tool. Take the property’s asking price and calculate 1 percent of it. If the monthly rent is at or above that number, the property is worth analyzing further.
Example: A property listed at $300,000 should generate at least $3,000 per month in gross rent to pass the 1 percent rule.
This is not a definitive test. Plenty of good deals fall below 1 percent in expensive markets, and plenty of bad deals exceed it. But it is a fast filter that prevents you from spending hours analyzing a property that has no chance of cash flowing.
In most major Canadian markets, achieving the 1 percent rule is difficult. In US cash-flow markets, it is common. This is one reason many Canadian investors explore US mortgage financing for Canadians to access better rent-to-price ratios.
If the property passes the 1 percent filter, move to the detailed analysis.
Step 2: Revenue Analysis
Start with income. What will this property actually generate?
Gross Potential Rent
Research comparable rental listings in the same neighbourhood, for the same unit type and size. Do not use the seller’s rent roll blindly. Existing tenants may be paying below market rent (upside opportunity) or above market rent (unsustainable).
Check at least five to ten comparable listings. Use the median, not the highest number. Be conservative. If comparable rents range from $1,400 to $1,800, use $1,500 or $1,600 in your analysis, not $1,800.
Vacancy Allowance
No property is 100 percent occupied forever. Budget a vacancy rate of 3 to 8 percent depending on the market. In high-demand markets with low rental supply, 3 to 5 percent is reasonable. In markets with higher turnover, use 5 to 8 percent.
For a property generating $2,000 per month gross rent, a 5 percent vacancy allowance is $100 per month or $1,200 per year.
Other Income
Some properties generate additional income from parking, laundry, storage lockers, or pet fees. Include these if they are reliable and documentable. Do not include speculative income from sources that do not currently exist.
Effective Gross Income
Effective Gross Income = Gross Potential Rent - Vacancy Allowance + Other Income
This is your realistic income number. Every expense calculation starts from here.
Once you’ve calculated your NOI and DSCR, you’ll know exactly what lenders will approve — book a free strategy call with LendCity and we’ll show you which programs match your deal’s actual numbers, not just your credit score.
Step 3: Expense Analysis
This is where most beginners get burned. They underestimate expenses, overestimate income, and end up with a property that loses money every month. Be thorough and conservative.
Property Taxes
Use the actual tax assessment, not an estimate. Property taxes are public information. If the property is selling at a higher price than the current assessment, taxes may increase at the next reassessment.
Insurance
Get an actual insurance quote for the property. Landlord insurance costs more than homeowner insurance. Budget $1,200 to $3,000 per year for a single-family rental, more for multifamily.
Maintenance and Repairs
Budget 5 to 10 percent of gross rent for maintenance and repairs. Older properties require more. Newer properties require less, but never zero. A roof replacement, a furnace failure, or a plumbing emergency can wipe out months of cash flow if you have not budgeted for it.
Property Management
Even if you plan to self-manage, include property management in your analysis. Use 8 to 10 percent of gross rent. If the property only works with free management, it does not really work. And eventually, as you scale your portfolio, you will hire management. The property needs to support that cost.
Utilities
If you pay any utilities (water, gas, electric, internet for common areas), include them. If tenants pay all utilities, this line is zero. Verify who pays what in the current lease.
Capital Expenditures (CapEx)
Beyond routine maintenance, budget for major capital items: roof, furnace, water heater, windows, appliances, flooring. A reasonable CapEx reserve is 5 to 10 percent of gross rent annually. This money accumulates over time to cover big-ticket replacements.
Total Operating Expenses
Add up all expenses. For a well-maintained single-family rental, total operating expenses (excluding the mortgage) typically run 35 to 50 percent of gross rent. If your expense estimate is below 35 percent, you are probably missing something.
Step 4: Calculate Net Operating Income
NOI = Effective Gross Income - Total Operating Expenses
This is the single most important number in your analysis. NOI tells you how much income the property generates before debt service. It is the foundation for every other metric.
Example:
- Gross Potential Rent: $2,000/month ($24,000/year)
- Vacancy (5%): -$1,200/year
- Effective Gross Income: $22,800/year
- Total Operating Expenses: -$9,600/year (42% of gross)
- NOI: $13,200/year ($1,100/month)
If your stress tests reveal the deal only works under perfect conditions, that’s a red flag — schedule a free strategy session with us and we’ll help you structure the financing to handle higher rates, vacancy spikes, and unexpected repairs.
Step 5: Calculate Cap Rate
Cap Rate = NOI / Purchase Price
Using our example: $13,200 / $300,000 = 4.4%
The cap rate tells you the property’s return as if you paid all cash, with no mortgage. It allows you to compare properties of different sizes and prices on an equal basis.
What is a good cap rate? It depends on the market. In major Canadian cities, cap rates of 3 to 5 percent are common. In secondary markets, 5 to 7 percent. In US cash-flow markets, 7 to 10 percent. Higher cap rates generally indicate higher risk or less desirable locations.
Cap rate is most useful for comparing properties within the same market, not across different markets.
Step 6: Calculate Cash-on-Cash Return
This is the metric that matters most to you as a leveraged investor. It measures your actual return on the cash you invest.
Cash-on-Cash Return = Annual Pre-Tax Cash Flow / Total Cash Invested
First, calculate your annual debt service. If you purchase the $300,000 property with 20 percent down ($60,000), your mortgage is $240,000. At 5.5 percent interest over 25 years, your annual mortgage payment is approximately $17,280.
Annual Pre-Tax Cash Flow = NOI - Annual Debt Service $13,200 - $17,280 = -$4,080
Total Cash Invested = Down Payment + Closing Costs + Any Immediate Repairs $60,000 + $6,000 (closing costs) + $5,000 (minor repairs) = $71,000
Cash-on-Cash Return = -$4,080 / $71,000 = -5.7%
This deal loses money every month. At a 25-year amortization, your mortgage payment consumes more than the NOI. This is the reality check. Let us see if a 30-year amortization changes the picture.
At 30 years, the annual mortgage payment drops to approximately $16,320.
Cash Flow = $13,200 - $16,320 = -$3,120 Cash-on-Cash = -$3,120 / $71,000 = -4.4%
Still negative. This deal does not work at current assumptions. You either need a lower purchase price, higher rents, or a different property. Amortization length changes your cash flow, but it will not turn a bad deal into a good one on its own. Go back to Step 2 and Step 3, tighten your income and expense assumptions, and run the numbers again before you move forward.
A good cash-on-cash return target is 5 to 10 percent for Canadian properties and 8 to 15 percent for US cash-flow properties. Anything below zero requires a compelling appreciation thesis to justify.
Step 7: Calculate DSCR
DSCR = NOI / Annual Debt Service
Using our example: $13,200 / $17,280 = 0.76
A DSCR below 1.0 means the property’s income does not cover the mortgage payment. Most lenders want a DSCR of 1.10 to 1.30 for investment property financing. This property would not qualify for a DSCR-based loan.
For multifamily properties financed through CMHC apartment financing, the DSCR requirement is critical. If you are exploring multifamily, run the DSCR calculation using the CMHC MLI max loan calculator to see what loan amount the property supports.
Step 8: Stress-Test Your Returns
Good numbers at current assumptions mean nothing if the assumptions change. Stress-test your analysis against three scenarios.
What If Vacancy Increases?
Run your numbers at 10 percent vacancy instead of 5 percent. Does the property still cash flow? If a 5 percent increase in vacancy turns your positive cash flow into a loss, the margin is too thin.
What If Rates Rise?
In Canada, your rate resets at every term renewal. If you are at 5.5 percent today, what happens at 7 percent? Calculate the new payment and see if the property still works. The mortgage stress test exists for this reason. You must qualify at 5.25 percent or your contract rate plus 2 percent, whichever is higher. But also stress-test at even higher rates to understand your exposure.
What If Expenses Spike?
Property taxes increase. Insurance premiums increase. Major repairs happen. Run your analysis with expenses 15 to 20 percent higher than your base case. A property that only works under perfect conditions is not a good investment.
If the deal survives all three stress tests and still produces acceptable returns, it is genuinely strong. If it fails under any reasonable stress scenario, reconsider.
Red Flags That Kill a Deal
Watch for these warning signs during your evaluation:
Deferred maintenance. If the roof is 25 years old, the furnace is original, and the electrical panel has not been updated, you are buying a repair bill, not an investment. Factor in the cost of bringing the property up to standard. If the repairs eat your margin, walk away.
Below-market rents with long-term leases. Current tenants paying $1,200 when market rent is $1,600 sounds like upside. But if they are on a two-year lease that does not expire for 18 months, you are stuck with below-market income. Check lease terms before closing.
Environmental issues. Asbestos, mold, underground oil tanks, contaminated soil. These can cost tens of thousands to remediate and may make the property unfinanceable. Always get a thorough inspection.
Declining neighbourhood indicators. Rising crime rates, increasing vacancy rates across the area, major employer closures, population decline. The property does not exist in a vacuum. The neighbourhood’s trajectory affects your long-term returns.
Seller providing incomplete financials. If the seller cannot produce tax returns, utility bills, or maintenance records for the property, be cautious. Incomplete financials often hide problems.
Unrealistic pro-forma projections. Sellers and listing agents love to present “pro-forma” numbers showing what the property could generate under ideal conditions. Evaluate the property on actual current performance, not projections.
How Lenders Evaluate Deals vs How You Should
Understanding the lender’s perspective helps you prepare a stronger application and avoids surprises.
Residential Lenders (1-4 Units)
Residential lenders focus on you, not the deal. They care about your income, your credit, your debt ratios, and whether you can make the payment even if the property sits vacant. They typically use a standardized appraisal based on comparable sales.
They do not care about your cash-on-cash return or your cap rate. They care about their risk of default. As long as you qualify under Canadian mortgage qualification rules, they will fund the deal whether it is a great investment or a mediocre one.
This is why your own analysis matters. The lender approving your mortgage does not mean the deal is good. It means you can afford the payment. Those are different things.
Commercial Lenders (5+ Units)
Commercial lenders evaluate the property more closely. They look at NOI, DSCR, vacancy rates, expense ratios, and the quality of the tenant base. Their appraisal uses the income approach, not comparable sales.
If the property’s financials are weak, the commercial lender will either decline the loan, reduce the loan amount, or require a larger down payment. This alignment between lender evaluation and deal quality is actually an advantage. If a commercial lender funds the deal, the numbers have been independently verified.
DSCR Lenders (US Properties)
DSCR lenders are the most deal-focused of all. They look almost exclusively at the property’s rental income relative to the mortgage payment. If the DSCR is strong, the loan is approved. If it is weak, it is not. Explore DSCR loans for Canadians to understand how this works for US investments.
When a Deal Is Good Enough to Move On
Analysis paralysis is real. You can run numbers forever and never buy anything. Here is a practical threshold:
The deal is ready for financing if:
- Cash-on-cash return meets your minimum target (5 percent for Canada, 8 percent for US)
- DSCR is above 1.10
- The deal survives stress testing at higher vacancy, higher rates, and higher expenses
- There are no major red flags on inspection or due diligence
- The purchase price is at or below market value based on comparable sales or income approach
- You have sufficient capital for the down payment, closing costs, and a three to six month reserve
The deal is not ready if:
- Cash flow is negative or barely break-even without a strong appreciation thesis
- You are relying on rent increases that have not happened yet
- The property requires major capital expenditure that is not factored into your analysis
- You cannot afford the down payment without stretching beyond your comfort zone
- Multiple stress-test scenarios produce losses
If the deal passes your framework, move quickly. In competitive markets, good deals do not last. Have your analysis ready, your documents organized, and your mortgage broker on speed dial.
Check out our investor education resources for calculators and tools to streamline your deal analysis. If you have a BRRRR or value-add deal that needs renovation financing, explore fix and flip financing options to structure the acquisition and rehab phases.
If you are looking at a multifamily property, know that CMHC MLI Select can get you better rates and higher leverage than a standard commercial mortgage, but only if the property meets specific affordability, energy efficiency, or accessibility criteria. And do not confuse CMHC Insurance with CMHC MLI Select. CMHC Insurance is mortgage default insurance required on most residential deals with less than 20 percent down. CMHC MLI Select is a separate program built specifically for larger multifamily deals. Run your NOI and DSCR numbers first. Then figure out which program actually fits your deal.
That is the whole framework. Run the numbers before you fall in love with the listing. The deal either works or it does not, and now you know how to tell the difference.
Frequently Asked Questions
What is a good cap rate for rental property?
Should I include property management costs even if I self-manage?
How do I verify the seller's rental income claims?
What is the difference between cap rate and cash-on-cash return?
How much cash reserve should I have before buying?
Is the 1 percent rule still relevant in today's market?
Disclaimer: LendCity Mortgages is a licensed mortgage brokerage. Content on this page is for educational purposes only and does not constitute legal, tax, investment, securities, or financial-planning advice. Rates, premiums, program terms, and regulations referenced are as of the page's last updated date and are subject to change. Any investment returns, rental yields, tax savings, or case-study figures shown are illustrative only — they are not guaranteed, not typical, and individual results will vary. Consult a licensed lawyer, Chartered Professional Accountant, or registered dealer before acting on any information above. Editorial standards.
Written by
LendCity
Published
July 7, 2026
Reading time
12 min read
1% Rule
A quick screening formula where the monthly rent should equal at least 1% of the purchase price. A $200,000 property should rent for $2,000/month to pass the test. It's a rough filter for cash flow potential — not a substitute for full analysis, but useful for quickly eliminating poor deals.
Above-Market Rent
Rental rates higher than comparable properties in the same area. Above-market rents can inflate DSCR calculations artificially and may lead to higher vacancy or tenant turnover when leases expire.
Amortization
The period over which a mortgage is scheduled to be fully paid off through regular payments of principal and [interest](/glossary/#interest-rate). In Canada, common amortization periods are 25 or 30 years, though the mortgage term (when you renegotiate) is typically 1-5 years. A longer amortization lowers monthly payments, improving [cash flow](/glossary/#cash-flow) but increasing total interest paid.
Appraisal
A professional assessment of a property's market value, required by lenders to ensure the property is worth the loan amount.
Appreciation
The increase in a property's value over time, which builds [equity](/glossary/#equity) and wealth for the owner through market growth or [forced improvements](/glossary/#forced-appreciation).
Below-Market Rent
Rental rates lower than comparable properties in the same area. Below-market rents represent a value-add opportunity where an investor can increase property value by raising rents to market levels.
BRRRR
Buy, Rehab, Rent, Refinance, Repeat - a real estate investment strategy where you purchase a property below market value, renovate it to increase its [ARV](/glossary/#after-repair-value-arv), rent it out, [refinance](/glossary/#refinancing) to pull out your initial investment, and repeat the process with the recovered capital. Success depends on [forced appreciation](/glossary/#forced-appreciation) and strong [cash flow](/glossary/#cash-flow).
Capital Expenditures
Major one-time expenses for property improvements that extend the useful life of the asset, such as roof replacement, foundation repairs, or new HVAC systems. CapEx differs from regular maintenance and is typically budgeted separately in investment property analysis.
Cap Rate
Capitalization Rate - the ratio of a property's [net operating income (NOI)](/glossary/#noi) to its current market value or purchase price. A 6% cap rate means the property generates $60,000 NOI annually on a $1,000,000 value. Used to compare investment properties regardless of financing. See also [DSCR](/glossary/#dscr) and [Cash-on-Cash Return](/glossary/#cash-on-cash-return).
Cash Flow Optimization
Cash flow optimization is the strategic process of maximizing the net income generated from a rental property by increasing rental revenue and minimizing operating expenses, mortgage costs, and vacancies. For Canadian real estate investors, this often involves tactics such as selecting the right financing structure, leveraging rental income from multiple units, and managing expenses like property taxes and maintenance to ensure the property generates consistent positive monthly returns.
Hover over terms to see definitions. View the full glossary for all terms.