What is the difference between cap rate and cash-on-cash return?

Cap rate measures a property's income potential independent of how it's financed — it's NOI divided by purchase price. Cash-on-cash return measures your actual return on the cash you invested, accounting for mortgage payments. Cap rate ignores your loan; cash-on-cash doesn't.

What is a good cap rate for a rental property?

A 'good' cap rate depends on your market and risk tolerance. Class A urban markets typically see 4–5% cap rates. Secondary markets offer 6–8%. Tertiary or higher-risk markets may yield 8–12%+. Always compare to local market averages — a 5% cap rate can be excellent in one city and poor in another.

What is a good cash-on-cash return for an investment property?

Most investors target 8–12% cash-on-cash return as a minimum threshold. Conservative investors in stable markets may accept 6–8%. Aggressive investors in higher-risk markets may require 12–15%+. The right target depends on your alternative investment options and risk profile.

Which metric should I use to compare properties — cap rate or cash-on-cash?

Use cap rate to compare properties independent of financing structure (useful when different investors have different loans). Use cash-on-cash to evaluate the actual return on your specific investment. Professional investors use both together for a complete picture of every deal.

Cap Rate vs Cash on Cash Return: What's the Difference?

Both metrics measure how a rental property performs financially, but they answer different questions. Confusing them is one of the most common mistakes new investors make. Here's what each one actually means.

Why These Two Metrics Exist

Rental property analysis requires multiple lenses. No single number tells you everything about a deal. Cap rate and cash on cash return are the two most commonly used profitability metrics — and while they're related, they measure fundamentally different things.

Understanding the difference will make you a sharper analyst and prevent you from making the mistake of comparing apples to oranges when evaluating deals.

What is Cap Rate?

Capitalization rate (cap rate) measures a property's income-generating potential independent of how it's financed. According to Investopedia, cap rate is one of the most fundamental metrics used by commercial real estate investors to evaluate and compare properties. The formula:

Cap Rate = Net Operating Income (NOI) ÷ Property Value

Net Operating Income is gross rental income minus operating expenses (property management, taxes, insurance, maintenance, vacancy allowance) — but before mortgage payments.

Cap Rate Example

Gross Annual Rent: $18,000
Operating Expenses: $6,000 (taxes, insurance, management, maintenance)
NOI: $12,000
Property Value: $160,000
Cap Rate = $12,000 ÷ $160,000 = 7.5%

A 7.5% cap rate means the property generates 7.5 cents in net income for every dollar of value — regardless of whether you paid cash or took out a loan.

What is Cash on Cash Return?

Cash on cash return measures the actual cash income you receive relative to the cash you invested. It accounts for your financing structure. BiggerPockets describes it as the metric most useful for evaluating how efficiently your actual invested dollars are working — especially important when comparing leveraged versus all-cash scenarios. The formula:

Cash on Cash Return = Annual Pre-Tax Cash Flow ÷ Total Cash Invested

Annual Pre-Tax Cash Flow is NOI minus your annual mortgage payments (debt service).

Cash on Cash Example (Using Financing)

NOI: $12,000 (same property as above)
Annual Mortgage Payment: $7,200 (25% down, $120K loan at 7%, 30yr)
Annual Cash Flow: $12,000 − $7,200 = $4,800
Cash Invested (down payment + closing costs): $45,000
Cash on Cash Return = $4,800 ÷ $45,000 = 10.7%

Cash on Cash Example (All Cash)

Annual Cash Flow: $12,000 (no debt service)
Cash Invested: $160,000
Cash on Cash Return = $12,000 ÷ $160,000 = 7.5%

Notice: when you pay all cash, your cash on cash return equals your cap rate. Leverage is what creates the difference.

The Key Differences

Cap rate ignores financing. It evaluates the asset itself. Cash on cash includes the effect of your mortgage.
Cap rate is used to compare properties. Since it ignores how you finance, you can compare a property in Dallas to one in Detroit fairly. Cash on cash varies by financing terms, so it's less comparable across investors.
Cash on cash tells you your actual return on deployed capital. If you put $45,000 into a deal, cash on cash tells you how hard that $45,000 is working for you.
Cap rate is used by commercial investors to price assets. "This market trades at a 6.5 cap" means properties are priced so their NOI ÷ price = 6.5%.

Which One Should You Use?

Use cap rate to:

Compare properties across different markets or financing scenarios
Quickly assess whether a property's income supports the asking price
Evaluate a market's overall return expectations ("this neighborhood trades at 7–8 cap")
Calculate what a property is worth based on its income (Value = NOI ÷ Cap Rate)

Use cash on cash to:

Measure the actual return on your invested dollars
Compare rental investing to other investments (stocks, bonds)
Evaluate how different financing options affect your returns
Determine if a deal produces enough cash flow for your income goals

What are Good Targets?

These benchmarks vary significantly by market, but as general guidelines:

Cap Rate: 5–7% is acceptable in appreciating markets; 8–10%+ in cash flow markets
Cash on Cash: 8–12% is a common target; 6%+ is generally considered worthwhile given real estate's other benefits (appreciation, depreciation, debt paydown)

In hot coastal markets (LA, NYC, Seattle), you might see 3–4% cap rates — investors are betting on appreciation rather than current income. In Midwest or Southeast cash flow markets, 8–10% caps are achievable.

One More Metric Worth Knowing: GRM

The Gross Rent Multiplier (GRM) is even simpler: Price ÷ Annual Gross Rent. A property priced at $180,000 renting for $18,000/year has a GRM of 10. Lower is generally better. Use GRM for quick screening before running cap rate analysis.

Final Thoughts

Neither cap rate nor cash on cash gives you the complete picture on its own. Smart investors calculate both, understand what each one is telling them, and make decisions based on which metric best matches their investment goal — appreciation vs. current income vs. return on capital.

Use your calculator tools to model both metrics on every deal before making an offer. The numbers tell you the truth even when emotion doesn't.