Calculator guide
Cash-on-Cash Return Calculator
Cash-on-cash return shows how efficiently the cash you actually invest is producing annual income.
What the metric means
Cash-on-cash return shows how efficiently the cash you actually invest is producing annual income.
DealPrism updates cash-on-cash return as down payment, closing costs, rent, and expenses move so users can see how leverage changes both risk and return.
Formula and variables
Where:
- Annual Cash Flow
- Monthly cash flow × 12 (spendable income after all expenses and debt service)
- Total Cash Invested
- Down payment + closing costs + any upfront rehab costs paid at acquisition
Example:
- Annual cash flow = $4,800 ($400/month × 12)
- Total cash invested = $60,000 ($55,000 down + $5,000 closing)
- Step 1: CoC Return = 4,800 ÷ 60,000
- Step 2: CoC Return = 0.080 = 8.0%
An 8% cash-on-cash return means your $60,000 investment generates $4,800 annually — $0.08 for every dollar of capital deployed.
What strong vs weak results usually mean
Stronger result: Healthy cash-on-cash return means the annual income justifies the capital tied up in the deal. It gets more useful when closing costs, rehab cash, and refinance timing are all included honestly.
Weaker result: Weak cash-on-cash return often shows up when too much capital is stuck in the deal relative to the cash flow being produced. It can also be distorted when investors leave out part of the upfront cash requirement.
- Count all capital invested, not just the down payment.
- Compare cash-on-cash return with cash flow quality, not in isolation.
- Check whether leverage improved returns or simply increased fragility.
Example analysis
If annual cash flow is $4,800 and total cash invested is $60,000, the estimated cash-on-cash return is 8.0%.
This is the point of an underwriting calculator: one number should always be traceable back to its underlying assumptions. If the output changes after a small rent, expense, or financing update, that is not noise. It is the deal showing you where the real sensitivity lives.
Common mistakes
- Leaving closing costs or rehab cash out of the denominator.
- Comparing returns without checking if the underlying cash flow is durable.
- Ignoring the tradeoff between more cash flow and more cash invested.
Related FAQs
Related resources
Why this metric should not stand alone
No serious rental property decision should rely on a single output. A cap rate without financing context, a mortgage payment without operating expenses, or a DSCR without rent validation can all point investors in the wrong direction.
The practical goal is not to memorize formulas. It is to understand which assumption changed, whether that change is realistic, and how the full deal behaves once the inputs are connected.
Analyze your own deal
See this metric in context with your purchase price, rent, expenses, and financing assumptions.
Analyze your own dealDealPrism provides educational analysis based on available data and user assumptions. Results are estimates and may change if rent, taxes, insurance, financing, or other inputs are updated. This content is not financial, legal, tax, or investment advice.