Gross, net, cap rate: three measures
Gross yield is the simplest calculation: annual rental income ÷ purchase price. Useful for quickly comparing properties, but it ignores all operating costs.
Net yield (cap rate) subtracts the real costs: municipal and school taxes, insurance, maintenance, property management, condo fees where applicable, and a prudent vacancy allowance. This is the measure investors and banks favour when evaluating a property.
Return on investment (ROI) layers in mortgage financing and expected appreciation. For a buyer financing 80% of the price, ROI can far exceed the cap rate — at the cost of higher risk.