Cap rate (capitalization rate) is one of the most important metrics in real estate investing. It measures a property's income relative to its value — independent of how you finance it. Understanding cap rates helps you compare properties objectively and pay the right price.
Cap Rate = Net Operating Income (NOI) ÷ Property Value
Net Operating Income is all rental income minus operating expenses, before mortgage payments and taxes. The result is a percentage.
Lower cap rate = you're paying more per dollar of income. Major cities accept lower yields in exchange for expected appreciation and perceived lower risk.
NOI includes:
NOI does NOT include: mortgage payments, income taxes, or capital expenditures.
Cap rate ignores financing. Cash-on-cash measures actual return on your invested capital, accounting for your specific mortgage. A 4.5% cap rate property may produce a 6% cash-on-cash return if financed efficiently — or a negative return if rates are high and leverage is extreme.
Use cap rate to compare properties apples-to-apples. Use cash-on-cash to evaluate your actual investment performance.
When mortgage rates exceeded cap rates in 2022–2023, many investors faced negative leverage — borrowing at higher rates than the asset earned. As the Bank of Canada cut rates in 2024, this pressure eased, but spreads remain tight in major markets.
Property Value = NOI ÷ Market Cap Rate
A multi-unit with $60,000 NOI in a 5% cap rate market should be worth $1,200,000. If the seller asks $1,400,000, they're implying a 4.3% cap rate — or the income doesn't support the price. This is standard valuation methodology for larger residential and commercial properties.
When prices rise faster than rents, cap rates compress. This happened across Canadian cities from 2015–2022. Investors accepted lower and lower yields betting on appreciation. Rate hikes exposed overleveraged investors who had no income cushion.
Cap rate is a snapshot. It doesn't capture:
A 4% cap rate in appreciating Toronto may outperform an 8% cap rate in a declining industrial town. Use cap rate as one tool, not the only tool.
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