Cash-on-cash return is the annual before-tax cash flow of a property divided by the total cash the investor actually put into the deal — down payment, closing costs, and any upfront repairs. Where cap rate measures the property, cash-on-cash measures your money, which is why two investors can own identical houses with very different cash-on-cash returns: their loans and cash-in differ.
The formula / structureCash-on-Cash = Annual Cash Flow (after debt service) ÷ Total Cash Invested
Cash-on-Cash Return: a worked example
Worked example. You put $52,000 total cash into a rental. After all expenses, reserves, and the mortgage payment, it cash flows $4,680 a year. Cash-on-cash = $4,680 ÷ $52,000 = 9.0%. The same house bought with more money down would show lower cash flow risk but a different (usually lower) cash-on-cash, because the denominator grew.
What affects Cash-on-Cash Return
- Loan terms — rate, down payment, amortization
- Cash flow honesty (vacancy, maintenance, reserves included or not)
- Total cash in, including closing costs and initial repairs
- Rent level and expense control after purchase
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