Cap Rate Explained: How to Evaluate a Rental Property's Value
Capitalization rate is one of the most important metrics in real estate investing. Learn how to calculate it, what it tells you, and its limitations.
The capitalization rate (cap rate) is a foundational metric for evaluating income-producing real estate. It expresses the relationship between a property's net operating income and its market value.
The Formula
Cap Rate = Net Operating Income (NOI) ÷ Current Market Value
For example: a property generating $24,000 in annual NOI and valued at $300,000 has a cap rate of 8%.
What It Tells You
A higher cap rate generally indicates higher potential return — but also higher risk. Markets with strong demand and low vacancy typically have lower cap rates because buyers are willing to pay more for stable income. Secondary markets often offer higher cap rates with corresponding risk trade-offs.
What NOI Includes
- Gross rental income minus vacancy allowance
- Minus operating expenses: property taxes, insurance, maintenance, management fees
- Note: NOI does not include mortgage payments (it's a pre-financing metric)
Limitations of Cap Rate
Cap rate does not account for financing costs, future appreciation, or capital expenditures. It is most useful for comparing similar properties in the same market, not as a standalone investment decision tool. Always pair it with cash-on-cash return and total return analysis.
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General information for the Carolinas market, not legal, tax or investment advice. Rules differ by state and by situation — take professional advice before acting.