Quick Answer: Cap rate measures a property's income performance independent of financing (NOI divided by property value), while cash-on-cash return measures the actual return on the dollars you personally put in (annual cash flow divided by your total cash invested). For leveraged investors, cash-on-cash is the number that hits your bank account.
I get asked this question constantly by newer investors: "which metric should I use to evaluate a rental property?" The honest answer is both, but for completely different reasons. Cap rate tells you about the property. Cash-on-cash tells you about your investment. Let me walk you through exactly what each one means, show you both on the same deal, and help you figure out when to use which.
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What Is Cap Rate (and What Is It Actually Measuring)?
Cap rate, short for capitalization rate, is a property-level metric. The formula is simple:
Cap Rate = Net Operating Income (NOI) / Property Value
NOI is your gross rental income minus all operating expenses (property taxes, insurance, maintenance, property management, vacancy allowance). It does NOT include your mortgage payment.
That last point is the key. Cap rate pretends you bought the property in cash. It strips out your financing so you can compare properties on an apples-to-apples basis, regardless of how each investor is funding the deal.
This makes cap rate incredibly useful for:
- Comparing two rental properties in the same market
- Benchmarking a property against market norms
- Evaluating whether you are overpaying or getting a discount
- Understanding how lenders and appraisers think about a property
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What Is Cash-on-Cash Return (and Why It Hits Different)?
Cash-on-cash return (CoC) is an investor-level metric. It measures what you actually earned on the cash you put into the deal:
Cash-on-Cash Return = Annual Pre-Tax Cash Flow / Total Cash Invested
Annual pre-tax cash flow is what is left after you pay operating expenses AND your mortgage. Total cash invested includes your down payment plus closing costs, any upfront repairs, and anything else you had to write a check for before the property generated income.
This is the number that tells you how hard your money is working. A 5% cash-on-cash return means for every $50,000 you invested, you pocketed $2,500 in actual cash that year.
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A Real Worked Example: Same Property, Both Metrics
Let me show you how these two numbers can look completely different on the exact same deal.
The Property:
- Purchase price: $200,000
- Down payment: 25% = $50,000
- Loan amount: $150,000 at 7% interest, 30-year fixed
- Monthly rent: $1,800
- Monthly operating expenses: $600 (30% of rent, covering taxes, insurance, management, maintenance)
NOI = (Monthly Rent - Monthly Operating Expenses) x 12 NOI = ($1,800 - $600) x 12 NOI = $1,200 x 12 NOI = $14,400/year
Step 2: Calculate Cap Rate
Cap Rate = $14,400 / $200,000 Cap Rate = 7.2%
Not bad. In most markets today, a 7.2% cap rate on a residential rental is solid. It means this property generates $7.20 in net income for every $100 of property value.
Step 3: Calculate Mortgage Payment
A $150,000 loan at 7% for 30 years works out to roughly $998/month in principal and interest.
Step 4: Calculate Annual Cash Flow
Annual Cash Flow = (Monthly Rent - Operating Expenses - Mortgage) x 12 Annual Cash Flow = ($1,800 - $600 - $998) x 12 Annual Cash Flow = $202 x 12 Annual Cash Flow = $2,424/year
Step 5: Calculate Cash-on-Cash Return
Cash-on-Cash = $2,424 / $50,000 Cash-on-Cash = 4.85%
So the same property scores 7.2% on cap rate but only 4.85% on cash-on-cash. Why the gap? Your mortgage payment. The property earns 7.2% as a standalone asset, but once you factor in borrowing $150,000 at 7% interest, your personal return on the $50,000 you put in drops to 4.85%.
Is this a good deal? That depends on your goals and your market. The cash flow is thin ($202/month) and your CoC is under 5%. For a buy-and-hold investor banking on appreciation in a strong market, it might still make sense. For a cash flow investor in a secondary market, this deal probably does not clear your hurdle rate. Run it through our rental property calculator to model it against your own criteria.
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The Leverage Effect: How Financing Changes Everything
Here is something that trips up a lot of investors. Leverage can either boost or hurt your cash-on-cash return relative to cap rate, depending on the relationship between your cap rate and your mortgage rate.
When cap rate is higher than your interest rate, leverage helps. In the pre-2022 era when rates were at 3-4%, a 7% cap rate property generated strong cash flow and a cash-on-cash return that could easily beat the cap rate itself.
When cap rate is lower than your interest rate, leverage hurts. In today's environment with mortgage rates in the 6.5-7.5% range, any property with a sub-7% cap rate is going to show compressed or even negative cash-on-cash once you add the mortgage.
This is exactly why so many investors struggled to make deals pencil in 2023 and 2024. Properties that looked reasonable on cap rate suddenly had terrible cash-on-cash because borrowing costs ate up most of the NOI.
Use our cash-on-cash calculator to quickly see how different down payment sizes and interest rates change your real return.
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When Lenders Use Cap Rate (Not Cash-on-Cash)
If you have ever applied for a DSCR loan (Debt Service Coverage Ratio loan), you know that lenders think in a different language than investors.
Lenders care about whether the property can cover the debt on its own. They calculate DSCR as:
DSCR = NOI / Annual Debt Service
This is closely related to cap rate. A lender underwriting a deal on a 7.2% cap rate property with a 7% mortgage will look at whether the NOI is sufficient to cover payments with a 1.25x cushion or better. They do not care about your cash-on-cash because it is not their equity at risk.
This matters because a deal that clears DSCR requirements can still be a mediocre cash-on-cash investment for you personally. Before you sign anything, check your DSCR with our DSCR calculator so you understand both sides of the equation.
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Market Benchmarks: What's a "Good" Number in 2025?
Cap Rate Benchmarks (2025):
- Class A urban markets (NYC, LA, Miami): 3.5% to 5%
- Mid-tier markets (Nashville, Phoenix, Charlotte): 5.5% to 7%
- Secondary and tertiary markets (Midwest, rural): 7% to 10%+
Cash-on-Cash Benchmarks (2025):
- Most experienced investors target 6% to 10% cash-on-cash as a baseline
- Below 5% is generally hard to justify unless you are banking heavily on appreciation
- Above 10% in today's rate environment is excellent and usually signals either a great deal, a high-risk market, or creative financing
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Which Metric Should You Actually Use?
Use cap rate when:
- Comparing multiple properties against each other
- Evaluating a market to see if it's priced reasonably
- Talking to lenders or partners who need a financing-neutral number
- Making quick screening decisions before running a full analysis
- Deciding whether to actually pull the trigger on a deal
- Comparing the return you will earn vs other uses of your capital
- Evaluating how your financing structure affects the deal
- Setting your personal investment criteria
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FAQ
What is the main difference between cap rate and cash-on-cash return?
Cap rate ignores financing entirely and measures property-level income performance as a percentage of property value. Cash-on-cash accounts for your actual mortgage payments and measures how much you personally earn on the cash you invested. A leveraged investor should always check both, but cash-on-cash is the number that reflects real returns on your money.
Can a property have a high cap rate but low cash-on-cash return?
Yes, and this is increasingly common in a high interest rate environment. If a property has a 7% cap rate but you are borrowing at 7%, most of your NOI goes to debt service. The cash leftover (your cash-on-cash) can drop to 3-4% or lower depending on your down payment size and loan terms. The worked example above shows exactly this situation.
Is a 7% cap rate good in 2025?
In most U.S. markets, a 7% cap rate is competitive and solid in 2025. In major coastal markets it would be exceptional. In smaller Midwest or Southeast markets it is more common. The key is to compare a property's cap rate against similar properties in the same submarket rather than using a single national benchmark.
What is a good cash-on-cash return for a rental property?
Most experienced investors look for at least 6-8% cash-on-cash before they feel good about a deal. Under 5% is generally considered thin unless appreciation or value-add potential justifies the lower immediate return. Above 10% is strong and harder to find in most markets today without a below-market purchase price or creative financing.
Do lenders care about cash-on-cash return?
Most conventional and DSCR lenders do not focus on your cash-on-cash return. They care about whether the property's NOI covers the debt service at their required ratio (usually 1.2x to 1.25x DSCR). That said, portfolio lenders and private money lenders who are evaluating your overall business may look at it as a measure of deal quality. As a borrower, you should always run your own cash-on-cash analysis even if your lender does not ask for it.
Should I invest in a property with negative cash-on-cash return?
Negative cash-on-cash (also called negative cash flow or "alligator properties") means the property is costing you money every month. Some investors accept this in ultra-high-appreciation markets like parts of California or New York, where property values have historically climbed fast enough to offset the monthly drag. For most investors though, betting on appreciation alone is speculative. If the cash-on-cash is deeply negative, the deal needs to be restructured, repriced, or passed on.