Cash on Cash Return Formula: Calculate and Interpret
Cash on cash return measures the annual return on the actual cash you invested in a rental property. It is the most practical metric for comparing rental investments because it accounts for financing — unlike cap rate, which assumes an all-cash purchase. If you put $40,000 down on a rental that generates $4,800 per year in cash flow, your cash on cash return is 12%.
This guide covers the formula, step-by-step calculations, what good returns look like in 2026, and how to use cash on cash return to evaluate deals.
The cash on cash return formula
Cash on Cash Return = Annual Pre-Tax Cash Flow ÷ Total Cash Invested
Expressed as a percentage.
Annual pre-tax cash flow
This is your net operating income (NOI) minus your annual debt service (mortgage payments). NOI = gross rental income minus operating expenses (property taxes, insurance, maintenance, property management, vacancy allowance).
Total cash invested
This is all the cash you put into the deal: down payment + closing costs + repair costs + any other out-of-pocket expenses before the property starts generating income.
Worked example
Property: 3BR/2BA single family rental
Purchase price: $180,000
Down payment (25%): $45,000
Closing costs: $4,500
Repairs before renting: $8,000
Total cash invested: $57,500
Monthly rent: $1,600
Annual gross income: $19,200
Less vacancy (8%): −$1,536
Less property taxes: −$3,600
Less insurance: −$1,400
Less maintenance (5%): −$960
Less property management (8%): −$1,536
NOI: $10,168
Annual mortgage payments (30yr, 7.0%, $135,000 loan): −$10,776
Annual cash flow: −$608
Cash on Cash Return: −$608 ÷ $57,500 = −1.1%
This property has a negative cash on cash return with conventional financing at 7%. That does not necessarily mean it is a bad investment (appreciation and equity buildup provide returns too), but it is not cash flowing. At a lower purchase price or higher rent, the numbers improve.
What is a good cash on cash return?
| CoC Return | Assessment | Context |
|---|---|---|
| Below 0% | Negative cash flow | You are paying out of pocket monthly. May be acceptable in high-appreciation markets. |
| 0-4% | Low | Barely cash flowing. Better than a savings account but not compelling for the work involved. |
| 5-8% | Average | Solid returns in competitive markets. Most investors target this range with conventional financing. |
| 8-12% | Good | Strong returns. Typically achieved in secondary markets or with below-market purchases (wholesale, off-market). |
| 12%+ | Excellent | Exceptional. Often requires creative financing, deeply discounted purchases, or BRRRR execution. |
Benchmark for 2026: With mortgage rates around 6.5-7.5%, most investors target 6-10% cash on cash return. Below-market acquisitions (from wholesale deals or off-market sourcing) improve CoC by lowering the purchase price and down payment.
Cash on cash vs. other metrics
| Metric | What It Measures | Accounts for Financing? | Best For |
|---|---|---|---|
| Cash on cash return | Annual return on cash invested | Yes | Comparing leveraged rental investments |
| Cap rate | NOI as % of purchase price | No | Comparing properties regardless of financing |
| Total ROI | All returns (cash flow + appreciation + equity) | Yes | Long-term investment evaluation |
| GRM | Price divided by gross rent | No | Quick screening before deep analysis |
How financing affects cash on cash return
Leverage amplifies cash on cash return (both positive and negative). Here is the same property with different financing:
| Scenario | Cash Invested | Annual Cash Flow | CoC Return |
|---|---|---|---|
| All cash ($180,000) | $192,500 | $10,168 (NOI) | 5.3% |
| 25% down, 7.0% | $57,500 | −$608 | −1.1% |
| 25% down, 5.5% | $57,500 | $1,948 | 3.4% |
| 20% down, 5.5% | $48,500 | $1,284 | 2.6% |
In 2026's rate environment, all-cash purchases often yield better cash-on-cash than leveraged purchases because debt service eats most of the NOI. The advantage of leverage shows in appreciation and equity buildup, which CoC does not capture. For a complete picture, use our rental property ROI guide.
Improving cash on cash return
- Lower purchase price. Buying below market (wholesale, off-market, negotiation) directly improves CoC.
- Increase rent. Renovations that justify higher rent (updated kitchen, added bedroom) improve cash flow.
- Reduce operating expenses. Self-manage (no PM fee), lower insurance through shopping, reduce maintenance through quality repairs.
- Better financing. Lower rate, longer amortization, or private money with interest-only terms.
- BRRRR refinance. If you refinance and pull cash out, your "cash invested" drops (sometimes to near zero), which dramatically increases CoC.
Common mistakes
- Forgetting vacancy. No property is rented 100% of the time. Budget 5-10% vacancy depending on market.
- Underestimating maintenance. Budget 5-10% of gross rent for maintenance and capital expenditures.
- Ignoring closing costs and repairs in "total cash invested." These are real cash out of your pocket and must be included.
- Comparing CoC across different financing structures. 12% CoC with no leverage is very different from 12% CoC with 90% leverage.