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

· Rentalyz

Clear comparison of cash-on-cash return and cap rate using the same property. Learn how financing changes one but not the other, and when to use each metric.

Cash-on-cash return and cap rate are two of the most important metrics in rental property analysis. They are often mentioned in the same breath, and many new investors confuse them or assume they measure the same thing. They do not.

Cap rate measures a property’s income performance independent of financing. Cash-on-cash measures your personal return based on the cash you actually invested. Understanding the difference — and when to use each — is fundamental to making sound investment decisions.

The Formulas

Cap Rate

Cap Rate = Net Operating Income (NOI) / Property Value x 100

NOI is gross rental income minus all operating expenses (taxes, insurance, management, maintenance, vacancy, CapEx). NOI does not subtract mortgage payments.

For a detailed NOI breakdown, see our guide to NOI.

Cash-on-Cash Return

Cash-on-Cash Return = Annual Pre-Tax Cash Flow / Total Cash Invested x 100

Annual cash flow is NOI minus annual debt service (mortgage payments). Total cash invested includes down payment, closing costs, and any initial rehab or furnishing costs.

For more depth, see our cash-on-cash return guide.

Same Property, Both Metrics

Let us analyze a single property using both metrics to see exactly where they diverge.

Property Details

ItemAmount
Purchase price$250,000
Monthly rent$2,000
Vacancy (5%)-$1,200/yr
Property taxes-$3,000/yr
Insurance-$1,500/yr
Management (8%)-$1,824/yr
Maintenance (1%)-$2,500/yr
CapEx reserve (0.5%)-$1,250/yr

NOI Calculation

Line ItemAnnual
Gross rent$24,000
Less: Vacancy-$1,200
Less: Operating expenses-$10,074
NOI$12,726

Cap Rate: $12,726 / $250,000 x 100 = 5.1%

Now let us calculate cash-on-cash under three different financing scenarios.

Scenario 1: All Cash Purchase

ItemAmount
Total cash invested$257,500 (price + closing)
Annual debt service$0
Annual cash flow$12,726
Cash-on-cash return4.9%

When purchased with all cash, cash-on-cash return approximates the cap rate (the small difference is due to closing costs being included in cash invested but not in the purchase price used for cap rate).

Scenario 2: 25% Down, 7% Rate

ItemAmount
Down payment$62,500
Closing costs$7,500
Total cash invested$70,000
Loan: $187,500 at 7%, 30-yr$1,248/mo
Annual debt service$14,976
Annual cash flow$12,726 - $14,976 = -$2,250
Cash-on-cash return-3.2%

Scenario 3: 25% Down, 5% Rate

ItemAmount
Down payment$62,500
Closing costs$7,500
Total cash invested$70,000
Loan: $187,500 at 5%, 30-yr$1,006/mo
Annual debt service$12,072
Annual cash flow$12,726 - $12,072 = $654
Cash-on-cash return0.9%

Comparison Table

MetricAll Cash25% Down, 7%25% Down, 5%
Cap rate5.1%5.1%5.1%
Cash-on-cash return4.9%-3.2%0.9%
Cash invested$257,500$70,000$70,000
Monthly cash flow$1,061-$188$55

Cap rate stays the same regardless of financing. It measures the property, not the deal. Cash-on-cash changes dramatically based on how much you borrow and at what rate.

This is the core difference, and it matters enormously when evaluating properties.

When to Use Cap Rate

Cap rate is the right metric when:

Comparing properties across different financing structures

If you are evaluating five properties and each might be financed differently, cap rate levels the playing field. It tells you which property generates the most income per dollar of value, regardless of how it is funded.

Evaluating markets

“What are cap rates in Memphis vs Phoenix?” is a meaningful question. Cap rate benchmarks by market tell you about local rent-to-price dynamics. A market with 7% cap rates has fundamentally different economics than one with 4% cap rates.

Assessing commercial properties

In commercial real estate, cap rate is the dominant valuation metric. Properties are literally priced as NOI / cap rate. A shift of 0.5% in market cap rates can change a property’s value by hundreds of thousands of dollars.

Quick screening

Cap rate is faster to estimate than cash-on-cash because it requires fewer inputs (no financing terms). Use it when browsing listings to quickly filter which properties deserve deeper analysis.

Use our cap rate calculator to run cap rate analysis on any property.

When to Use Cash-on-Cash Return

Cash-on-cash return is the right metric when:

Making buy/no-buy decisions on specific deals

When you have a specific financing offer in hand, cash-on-cash tells you what your actual dollars will earn. This is the number that determines whether the deal works for you.

Comparing deals where you use different leverage

If Deal A requires $80K cash and Deal B requires $50K cash, comparing cap rates alone does not tell you which is a better use of your capital. Cash-on-cash accounts for how much you are investing and what return that investment generates.

Evaluating refinance decisions

Should you refinance at a lower rate and pull out cash? Cash-on-cash before and after refinance tells you whether the move improves your return on equity.

Portfolio-level return tracking

Your portfolio’s performance should be measured on cash-on-cash because it reflects your actual returns on actual invested capital.

Use our cash-on-cash calculator to model specific financing scenarios.

How Leverage Affects the Relationship

Leverage (borrowing) amplifies returns in both directions:

Down PaymentCash InvestedCash FlowCash-on-CashCap Rate
100% (all cash)$257,500$12,7264.9%5.1%
50%$132,500$4,7673.6%5.1%
25% (at 5%)$70,000$6540.9%5.1%
25% (at 7%)$70,000-$2,250-3.2%5.1%
20% (at 7%)$57,500-$3,494-6.1%5.1%

At low interest rates, leverage boosts cash-on-cash above cap rate (positive leverage). At high interest rates relative to cap rate, leverage drags cash-on-cash below cap rate (negative leverage).

Positive leverage occurs when the cap rate exceeds the loan constant (annual debt service / loan amount). When cap rate is below the loan constant, you have negative leverage — borrowing money is actually reducing your return compared to paying all cash.

In 2026 with 7% mortgage rates and many markets at 5-6% cap rates, negative leverage is common. This does not necessarily mean you should not buy, but it means the cash flow return on leveraged deals will be lower than cap rate suggests.

Common Mistakes

Mistake 1: Using Cap Rate to Evaluate a Financed Deal

“The cap rate is 7%, so this is a great deal!” Maybe. But if you are financing at 7.5% and putting 25% down, your cash-on-cash might be negative. Always run cash-on-cash when you plan to use a mortgage.

Mistake 2: Comparing Cash-on-Cash Across Different Markets Without Context

A 12% cash-on-cash in a C-class neighborhood with 15% vacancy and constant maintenance issues is not the same quality of return as 6% cash-on-cash in an A-class neighborhood with 3% vacancy. Risk-adjusted returns matter.

Mistake 3: Ignoring Principal Paydown and Appreciation

Neither cap rate nor cash-on-cash captures the full picture of investment returns. Principal paydown builds equity that does not appear in cash flow. Appreciation (or depreciation) affects total return. For a complete analysis, you need to consider cash flow + principal paydown + appreciation + tax benefits.

Use our rental property calculator to see all return components including 5-year projections.

Mistake 4: Treating Either Metric as a Single Go/No-Go Threshold

“I only buy above 8% cap rate” or “I need 10% cash-on-cash” are arbitrary cutoffs that may cause you to miss good deals or accept bad ones. The right threshold depends on your market, asset class, risk tolerance, and investment goals.

Quick Reference

Cap RateCash-on-Cash
Includes financing?NoYes
Includes closing costs?NoYes
Changes with interest rates?NoYes
Changes with down payment?NoYes
Useful for market comparison?YesNo
Useful for buy decisions?ScreeningFinal decision
Standard in commercial RE?YesLess common
Standard in residential RE?CommonVery common

Frequently Asked Questions

Can cap rate and cash-on-cash ever be the same?

Yes. When you buy a property with 100% cash (no financing), cap rate and cash-on-cash are nearly identical. The small difference comes from closing costs being included in cash-on-cash’s denominator but not in the purchase price used for cap rate.

Which metric is more important?

For individual deal analysis, cash-on-cash is more actionable because it reflects your actual financing and your actual return. For market analysis and property screening, cap rate is more useful because it strips out deal-specific financing. Neither is universally “more important” — they answer different questions.

What is a good cap rate in 2026?

It depends on the market and property class. National averages range from 4-5% in expensive coastal markets to 7-9% in Midwest and Southeast metros. A “good” cap rate is one that exceeds the prevailing mortgage rate, creating positive leverage. Read our guide to good cap rates for detailed benchmarks.

What is a good cash-on-cash return?

In the current rate environment, 6-10% cash-on-cash is considered solid for a stabilized long-term rental. BRRRR and value-add strategies may target 10-15%+. Any positive cash-on-cash with a financed property in a high-rate environment is respectable.

Should I use cap rate or cash-on-cash for a BRRRR deal?

Use both. Cap rate tells you whether the property’s fundamentals are sound. Cash-on-cash (calculated on your net cash left in the deal after refinance) tells you whether the BRRRR execution achieved its goal of high capital efficiency. A BRRRR deal with a mediocre cap rate can still produce excellent cash-on-cash if you recovered most of your capital at refinance.