What is a good cap rate for rental property?

The short answer

A good cap rate is not a single number. It is a number that makes sense for the property, the market, the risk, and the return you need.

A stabilized single-family rental in one market might trade around 4% to 6%. A similar house in another market might trade around 6% to 9%. A small apartment building with below-market rents, deferred maintenance, or a difficult tenant mix may need a higher cap rate to compensate for those issues. A newly built property with a long lease and a strong tenant may trade at a lower cap rate.

Those ranges are starting points for a conversation, not rules. A 5% cap rate is not automatically “bad,” and a 10% cap rate is not automatically “good.” The useful question is: what is the cap rate telling me about the income and risk I am buying?

What the cap rate measures

Cap rate is an unleveraged yield on the property. It compares one year of net operating income (NOI) with the capital needed to buy the property.

A cap rate of 6.2% means the property produces about $6.20 of NOI per year for every $100 of acquisition basis, before financing and income taxes. It is a snapshot, not a projection. It does not account for rent growth, expense inflation, appreciation, tax benefits, or the timing of future cash flows.

That simplicity is the point. Cap rate lets you compare different properties on a common operating basis. It also has limits. A property with a 5% cap rate and strong rent growth may produce a better long-term return than a property with an 8% cap rate in a flat market. The cap rate alone cannot tell you which is the better investment.

Why there is no universal benchmark

Market pricing

Local buyers and sellers set cap rates through transactions. In markets where investors expect strong rent growth, low vacancy, or long-term appreciation, they may accept a lower current yield. In markets with weaker demand or higher operating risk, they may demand a higher yield.

The same property can trade at different cap rates in different markets because the market is pricing different expectations. A cap rate that looks low in one city may be normal in another.

Property type and tenant profile

A single-family rental, a small multifamily building, a short-term rental, and a retail property have different operating risks. Tenant turnover, lease structure, maintenance intensity, and regulation all affect the return investors require.

A property with one tenant has concentration risk. A 20-unit building has more diversified income but may need professional management. A property with below-market rents may have upside, but it may also need capital and time to realize that upside.

Condition and capital needs

An older roof, a failing HVAC system, or a kitchen that needs replacement is a future capital cost. Some investors reserve for those costs inside NOI; others hold them below NOI. Either approach can be reasonable, but the cap rate comparison must use the same convention.

If one listing includes a $10,000 annual reserve and another does not, their headline cap rates are not directly comparable. The calculator makes this explicit with a reserves toggle.

Income quality

A cap rate is only as good as the NOI behind it. Ask whether the rent is market rent or a promotional number. Check whether the seller included other income that may disappear. Confirm that property taxes will not reset after the sale. Verify insurance, HOA dues, utilities, and management costs.

A property advertised at a 7% cap rate with understated taxes and no maintenance allowance may be a worse deal than a property advertised at 5.5% with conservative assumptions.

A practical way to judge a cap rate

Use the cap rate as one layer of a decision, not as a verdict.

1. Check the local range. Ask local brokers and appraisers what similar stabilized properties have traded for. Review closed sales, not just asking prices. If the property is advertised at a 9% cap rate while comparable sales are at 6%, find out why before assuming it is a bargain.
2. Rebuild the NOI. Start with market rent, apply a vacancy and credit-loss allowance, and list every operating expense. Use actual taxes and insurance where possible. Decide whether to include reserves.
3. Compare like with like. Use the same basis and the same expense convention across deals. If one deal uses all-in basis and another uses purchase price, relabel or recalculate before comparing.
4. Stress the result. What happens if rent falls 5%, vacancy rises, or taxes increase? A low cap rate has less cushion. A high cap rate may already be pricing in some distress.
5. Compare with your required return. If you need an 8% unleveraged return to justify the risk, a 5.5% cap rate does not clear your hurdle unless you have a specific reason to expect growth or another benefit.

A worked example

Consider a $300,000 single-family rental with $2,600 monthly rent, 5% vacancy, $3,600 annual taxes, $1,800 annual insurance, and 18% of gross scheduled income reserved for management, maintenance, and capex.

• Gross scheduled income: $31,200
• Vacancy loss at 5%: $1,560
• Effective gross income: $29,640
• Percentage expenses at 18%: $5,616
• Fixed expenses: $5,400
• NOI: $18,624
• Cap rate on purchase price: 6.21%

At a 6% target cap rate, the implied value is $310,400, or about $10,400 above the purchase price. That does not mean the property is worth $310,400. It means the current NOI would support that value if 6% is the right market yield for this property and the assumptions hold.

Run the same example with a 7% target cap rate and the implied value falls to about $266,057. The property does not change. The required yield does. That is why “good” is a relative question.

What a good cap rate is not

A cap rate is not a cash-on-cash return. Cash-on-cash includes financing and measures the return on the cash you actually invest. A property can have a 6% cap rate and a 2% cash-on-cash return if debt service is high, or a 10% cash-on-cash return with more leverage and more risk.

A cap rate is not an IRR. It ignores the timing of cash flows, rent growth, sale proceeds, and the cost of capital. It is a one-year operating snapshot.

A cap rate is not a guarantee of value. It is a convention that depends on the NOI and the basis you choose. Two investors can calculate different cap rates for the same property and both be mathematically correct if they use different assumptions.

FAQ: the questions investors actually ask

The answers above cover the recurring questions, but the most important one is usually local: what are comparable properties actually trading for, and what risks are embedded in the number?

If you cannot explain why a cap rate is higher or lower than the local range, stop and investigate. The explanation may be a genuine opportunity, or it may be a missing expense, an unrealistic rent, or a capital need that has not been priced.

Bottom line

A good cap rate is a cap rate you can defend. It should be based on realistic income, a complete operating expense list, a clearly labeled basis, and a comparison with local transactions and your own required return.

Use the number to narrow the field, then underwrite the property. The cap rate is the beginning of the analysis, not the end of it.