The formula is simple: divide the net cash a property puts in your pocket each year by the cash you personally paid to acquire it, then multiply by 100.
Cash invested means your money only — down payment, closing costs, and pre-lease improvements. The mortgage balance is excluded.
Mortgage payments do factor in — they are subtracted from rental income before you calculate net cash flow.
Higher leverage raises the return percentage — because your equity denominator shrinks. That reflects the mechanics of debt, not that the property is performing better.
The metric is pre-tax and single-year — it does not capture appreciation, equity paydown, tax treatment, or long-term total return.
8–12% is a common reference range for stabilised residential rentals, but the right target shifts with location, leverage, and property type.
Key Topics
Before putting money into any rental property, you need a way to answer a basic question: is this deal actually earning a return on my cash? There are several ways to measure that, but cash-on-cash return is one of the fastest and most practical, particularly when a mortgage is involved.
It’s not complicated, but it’s easy to calculate wrong. The most common mistake is using the full purchase price as the denominator instead of the cash you personally invested. That single error can make a leveraged deal look far weaker than it actually is. This guide explains how to do it correctly, what the number means, and where it breaks down.
What Cash-On-Cash Return Is
Cash-on-cash return measures the income a rental property produces in a given year as a percentage of the money you paid out of your own pocket to acquire it. That’s it. The mortgage doesn’t count as your money, only what came from you directly: the down payment, any closing costs you covered, and any cash you spent getting the property rent-ready before the first tenant.
The reason this distinction matters is that most rental purchases are financed. When you borrow $140,000 and put in $35,000, you haven’t committed $175,000 of your own capital, you’ve committed $35,000. Cash-on-cash return measures the yield on that $35,000, after the mortgage payments have already been taken out of your rental income. That makes it a more direct measure of how your equity is performing than a calculation that lumps borrowed money in with yours.
It’s also worth being clear on what the income side of the calculation includes. You start with the rent the property generates, add any other income sources like storage rental or parking, subtract what you lose to vacancies, subtract the running costs of the property, and then subtract your mortgage payments for the year. The number you’re left with is the cash that actually hits your account. That’s what goes into the top of the formula.
The Formula
How To Run The Calculation Step By Step
Calculate total annual rental income
Add up 12 months of rent plus anything else the property earns - a parking bay, storage locker, coin laundry, or pet fees.
Deduct vacancy
Few properties run at 100% occupancy. A realistic vacancy allowance for most single-family rentals is 5–8% of gross rent. Use your actual local vacancy rate if you have it.
Deduct operating expenses
Property taxes, landlord insurance, any HOA dues, routine maintenance, and property management fees if you use one. Not capital items like a new roof - those are separate.
Deduct annual mortgage payments
Add up every mortgage payment you made in the year - principal and interest combined. This gives you your net cash flow for the year.
Add up your cash invested
Down payment plus closing costs plus any cash you spent on the property before it was tenanted. The mortgage principal is excluded - it is not your money.
Divide and convert to a percentage
Divide your net cash flow (step 4) by your cash invested (step 5). Multiply by 100. That is your cash-on-cash return.
Three Examples
Example 1: All-cash purchase
No debt, simple baseline
Example 2: Financed purchase
Same property, $45k down, $135k loan
Example 3: Financed purchase with renovation
Value-add scenario — reno costs are part of cash invested
What The Formula Includes and What It Doesn't
Cash-on-cash return: what's in, what's out
Knowing the boundaries of this metric is half the calculation
Counts in the formula
Down payment
Your primary equity contribution, the biggest component of total cash invested
Closing costs you paid
Title insurance, escrow fees, attorney costs - any cash you paid at settlement
Pre-tenancy improvements
Cash spent on repairs or upgrades before the first lease starts
Mortgage payments
Subtracted from income when calculating net cash flow — they reduce what hits your account
Does not count
The loan balance
Borrowed capital belongs to the lender - it does not sit in the denominator
Property value growth
Appreciation only realises when you sell or refinance — invisible to this metric
Income tax
The formula runs before tax. Depreciation and tax strategy need a separate analysis
Future capital spending
A future roof or HVAC replacement will not show unless you add a capex reserve line manually
What Counts As A Good Cash-On-Cash Return?
Investors often quote a range of roughly 8–12% as a reasonable target, and that’s a fair starting point for a stabilized residential rental in a balanced market. But it’s a reference range, not a benchmark with any fixed authority behind it, and it can mislead if taken out of context.
The number that makes sense for any given deal depends on a handful of things that aren’t captured in the percentage itself.
The local rental market.
In high-demand cities where property prices are steep relative to rents, parts of the Northeast, West Coast, or major coastal metros, cash-on-cash returns of 4–6% are common. Investors accept that because the appreciation potential is different. In secondary markets with strong rental demand and lower entry prices, 10–14% can be achievable on the right deal. Neither is inherently better, they’re different strategies.
How much debt is in the deal.
More leverage tends to inflate cash-on-cash return because your equity denominator shrinks while the income side stays similar. A 16% return funded with 85% debt is structurally riskier than a 10% return with 60% debt, even though the first number looks more impressive. Use New Silver’s rental property calculator to stress-test different financing structures before settling on a target.
Property type and stability.
A long-term tenant on a multi-year lease produces steadier cash-on-cash returns than a short-term rental that varies by season. An older building with deferred maintenance may produce a strong current return that deteriorates quickly once repair bills arrive.
What else the deal offers.
Some investors intentionally accept a lower current cash return in exchange for a property in a high-growth area, or one where a refinance in a few years will change the financing structure entirely. Cash-on-cash return doesn’t reward those considerations, it only reflects the current cash picture.
Cash-On-Cash vs. Cap Rate vs. ROI
These three metrics are sometimes treated as interchangeable. They’re not. Each answers a different question, and the difference matters when you’re actually evaluating deals.
| Metric | The question it answers | What it leaves out | Best suited for |
|---|---|---|---|
| Cash-on-cash return | How much cash am I earning per year on the money I personally invested? | Appreciation, equity paydown, taxes, long-term total return | Annual cash yield check on any leveraged rental deal |
| Cap rate | What income does this property generate relative to its value, ignoring how it's financed? | Your mortgage, your equity stake, financing costs entirely | Comparing properties on a like-for-like basis regardless of financing |
| ROI | What was my total return across the whole hold, including everything I put in and got out? | How returns were distributed over time; not useful year by year | Evaluating total deal performance after a sale or at end of hold |
How Leverage Affects The Number
Two investors buy the same $220,000 house. One pays cash. The other puts 20% down. The property earns $18,500 in rent, costs $4,200 to run, and generates $14,300 before debt service.
The cash buyer gets $14,300 cash flow on $220,000 invested, a 6.5% return. The leveraged buyer, after paying $10,200 in annual mortgage payments, nets $4,100 on $48,000 invested (assuming $44k down plus $4k closing costs), a return of 8.5%. Same property, different returns, very different risk profiles.
This is why cash-on-cash return goes up when you borrow more, your equity shrinks faster than the cash flow does. There’s nothing wrong with that mechanically, but it’s why a high return built on heavy debt needs checking against how the deal holds up if something goes wrong. New Silver’s DSCR rent loan products are qualified on the property’s income rather than the borrower’s personal income, which means lenders are already looking at cash flow closely when they underwrite. Understanding how DSCR is calculated is worth doing before you apply.
When To Run The Calculation
Cash-on-cash return gives the clearest read at the end of year one, when you have 12 months of actual rent collected, real expenses paid, and known mortgage payments. Running it on estimates before purchase is useful for screening deals, but treat that number as directional rather than definitive — rents, vacancy, and expenses rarely land exactly where projected.
After the first year, the calculation still works but becomes more situational. If you’ve refinanced, your equity position and debt service have both changed, so the denominator needs revisiting. If you did a mid-hold renovation, decide whether to add those costs to your running cash invested total.
For multi-year analysis or deals where the exit strategy matters, IRR (internal rate of return) gives a more complete picture because it factors in when each cash flow occurred and what you ultimately walked away with.
FAQ
Partly. Your annual mortgage payments are subtracted from rental income when you calculate net cash flow, so they reduce the top number. But the mortgage balance itself is not included in the cash invested denominator. Only what you personally paid goes there.
Your down payment, closing costs you covered at settlement, and any cash you spent on the property before it started generating rent, such as a pre-lease renovation. The mortgage principal is excluded. If the lender paid for it, it wasn’t your cash.
No. ROI looks at the total return across the full holding period, factoring in all capital including borrowed funds. Cash-on-cash return measures annual cash yield on your own invested equity only. On a leveraged deal the two figures will diverge, sometimes significantly.
This is because your equity denominator shrinks while the property still generates similar income. If you put in $40,000 instead of $180,000, a smaller cash flow produces a bigger percentage. It reflects the mechanical effect of leverage, not that the property is performing better.
Many investors use 8–12% as a rough guide for stabilized residential rentals in balanced markets, though that range shifts with location, leverage, and property type. In competitive urban markets, 5–7% is common. In smaller markets with lower entry prices, returns above 12% are achievable. The number needs context to mean anything.
Use cap rate when you want to compare two properties regardless of how either is financed. Because it strips out the mortgage entirely, it’s better for property-level comparison. Cash-on-cash return is more useful once you know your financing structure and want to see what your equity is actually earning.
