How to Calculate ROI on Rental Property
ROI (return on investment) on rental property goes beyond simple cash flow. A rental property generates returns in four ways: monthly cash flow, property appreciation, mortgage paydown (equity buildup), and tax benefits. Calculating only one of these gives you an incomplete picture. This guide covers how to calculate each component and combine them into a total ROI that lets you compare rental investments accurately.
The four components of rental ROI
1. Cash flow
Monthly rental income minus all expenses (mortgage, taxes, insurance, maintenance, management, vacancy). This is the most tangible return — money in your bank account every month. See our cash on cash return guide for the detailed formula.
2. Appreciation
The increase in property value over time. National average: 3-4% per year historically, but varies dramatically by market. Appreciation is unrealized until you sell or refinance.
3. Equity buildup (mortgage paydown)
Each mortgage payment includes principal that reduces your loan balance. In year 1 of a 30-year mortgage, roughly 25-30% of each payment goes to principal. By year 10, it is 40-45%. Your tenant is effectively buying the property for you.
4. Tax benefits
Depreciation (27.5 years for residential), mortgage interest deduction, expense deductions, and potentially pass-through deductions. These reduce your taxable income, which is a real economic benefit even if it does not show up as cash flow.
Simple ROI formula (cash purchases)
ROI = Annual Net Income ÷ Total Investment × 100
Purchase: $180,000 all cash + $12,000 repairs = $192,000 invested
Annual rental income: $19,200
Annual expenses (taxes, insurance, maintenance, management, vacancy): −$9,032
Net income: $10,168
ROI = $10,168 ÷ $192,000 = 5.3%
This basic calculation only captures cash flow. For a complete picture, you need to add appreciation, equity buildup, and tax savings.
Total ROI formula (leveraged purchases)
Total Annual ROI = (Cash Flow + Equity Buildup + Appreciation + Tax Savings) ÷ Total Cash Invested
Purchase: $180,000, 25% down ($45,000), $4,500 closing, $8,000 repairs = $57,500 cash invested
Loan: $135,000 at 7.0%, 30-year fixed
Cash flow: −$608/year (see CoC example)
Equity buildup: ~$2,026 in year 1 (principal portion of mortgage payments)
Appreciation: $180,000 × 3% = $5,400
Tax savings: Depreciation ($180,000 ÷ 27.5 = $6,545) at 24% bracket = $1,571
Total return: −$608 + $2,026 + $5,400 + $1,571 = $8,389
Total ROI: $8,389 ÷ $57,500 = 14.6%
The property that had negative cash-on-cash return actually generates a 14.6% total return when you include all four components. This is why many investors accept negative cash flow in high-appreciation markets.
Key metrics to calculate
| Metric | Formula | What It Tells You |
|---|---|---|
| Cash on cash return | Annual cash flow ÷ cash invested | Return on your actual cash, with financing |
| Cap rate | NOI ÷ purchase price | Return if purchased all-cash (financing-neutral) |
| Total ROI | (All 4 returns) ÷ cash invested | Complete annual return including unrealized gains |
| 1% rule | Monthly rent ≥ 1% of purchase price | Quick screening: $180,000 property should rent for $1,800+ |
| DSCR | NOI ÷ annual debt service | Ability to cover mortgage. Lenders want 1.2+ |
Year-by-year ROI projection
ROI improves over time for most rental properties because rent increases, the mortgage balance decreases, and appreciation compounds. A property generating 14.6% total ROI in year 1 might generate 18-22% by year 5 as rents increase and more of each payment goes to principal.
For multi-year projections, use a rental property calculator that models rent growth, expense growth, appreciation, and amortization over time.
What is a good ROI on rental property?
| Return Type | Good | Great | Context |
|---|---|---|---|
| Cash on cash | 6-8% | 10%+ | With 25% down, 7% rate in 2026 |
| Cap rate | 5-7% | 8%+ | Varies by market and property class |
| Total ROI (year 1) | 12-15% | 18%+ | Including appreciation and tax benefits |
Common ROI calculation mistakes
- Forgetting vacancy. No property stays rented 365 days. Budget 5-10% vacancy.
- Ignoring capex reserves. Roofs, HVAC, and water heaters need replacing. Budget 5-8% of rent for capital expenditures beyond routine maintenance.
- Using list rent, not market rent. Verify achievable rent with rental comps, not what the seller or Zillow claims.
- Not including all cash invested. Down payment + closing costs + repairs + initial vacancy period = your total investment.
- Projecting appreciation as guaranteed. Include appreciation in your analysis but do not depend on it. Cash flow should be positive on its own for a conservative investment.
Comparing rental investments
When choosing between multiple rental properties, compare on a consistent basis:
- Same metric. Compare CoC to CoC, cap rate to cap rate. Do not compare Property A's CoC to Property B's cap rate.
- Same assumptions. Use the same vacancy, maintenance, and management percentages for all properties.
- Same time horizon. A property that cash flows better in year 1 may underperform over 10 years if appreciation and rent growth are lower.
- Risk-adjusted. A 12% CoC in a rough neighborhood with high turnover is not equivalent to 8% CoC in a stable suburban market.