The Core Difference
Cash-on-Cash (CoC) measures annual pre-tax cash flow relative to your cash invested. It only counts actual cash you receive each year.
ROI (Return on Investment) is broader — it can include cash flow, principal paydown, and appreciation. It's a total return measure.
Cash-on-Cash Formula
Total Cash Invested = Down payment + Closing costs + Rehab + Reserves
Example: You invested $80,000 (20% down + $15,000 closing costs + $5,000 reserves) and the property generates $6,400/year cash flow. CoC = 6,400 / 80,000 = 8%.
ROI Formula
Using the same example, if principal paydown was $3,200 and appreciation was $12,000:
ROI = (6,400 + 3,200 + 12,000) / 80,000 = 27%
When to Use Each
| Metric | Use For | Limitation |
|---|---|---|
| Cash-on-Cash | Comparing current cash yield, year 1 cash position | Ignores equity build, appreciation |
| ROI | Total wealth creation, long-term performance | Appreciation is speculative |
| Cap Rate | Comparing properties, ignoring financing | Ignores leverage effect |
The Leverage Effect
CoC and ROI both improve with leverage. If a property has a 6% cap rate and you finance at 5% interest, your CoC on the levered portion is higher than 6% — this is positive leverage.
Negative leverage occurs when your interest rate exceeds the cap rate — your returns are worse than buying all-cash.
Which Should You Use?
- For screening deals quickly: Cash-on-cash is king. Target 7–10%+ depending on market.
- For total return modeling: ROI, but be conservative with appreciation assumptions.
- For lender conversations: DSCR and cap rate.
- For long-term portfolio math: IRR (internal rate of return) is most rigorous.