Pre-tax return and tax context
Rental Property ROI Calculator
A rental pays you four ways: cash flow, loan principal paid down by the tenant, appreciation, and potential tax savings from depreciation. The calculator adds the first three and divides by the cash invested: 17.2% before tax on the loaded example, of which 4.75% arrives as cash flow. The separate tax illustration below depends on your deduction timing and ability to use it.
Deal snapshot
Year-one total return
17.20%
Cash-on-cash
4.75%
Principal paydown
$2,118
Appreciation
$7,950
Cap rate
7.29%
DSCR
1.25
Monthly cash flow
+$320
Your numbers
| Annual operating statement | Per year |
|---|---|
| Gross scheduled rent | $31,800 |
| Other income | $900 |
| Gross potential income | $32,700 |
| Vacancy and credit loss | ($1,635) |
| Effective gross income | $31,065 |
| Property tax | ($3,420) |
| Insurance | ($1,650) |
| Utilities | ($720) |
| Other operating | ($300) |
| Property managementon collected rent | ($2,485) |
| Maintenance reserveon scheduled rent | ($1,590) |
| CapEx reserveon scheduled rent | ($1,590) |
| Total operating expenses | ($11,755) |
| Net operating income | $19,310 |
| Annual debt servicenot an operating expense | ($15,469) |
| Pre-tax cash flow | +$3,841 |
Debt service sits below net operating income, never inside it. That single placement is what keeps cap rate a property metric instead of a loan metric.
| Acquisition | Amount |
|---|---|
| Purchase price | $265,000 |
| Loan amount | $198,750 |
| Down payment | $66,250 |
| Closing costs | $6,625 |
| Up-front rehab | $8,000 |
| Total cash invested | $80,875 |
| All-in costprice + closing + rehab | $279,625 |
| Monthly principal and interest | $1,289.09 |
- Break-even occupancy
- 82.2%
- Break-even rent
- $2,236 / mo
- Operating expense ratio
- 37.8%
- Year-one principal paydown
- $2,118
| Scenario | NOI | Cap rate | Cash-on-cash | DSCR | Cash flow / mo |
|---|---|---|---|---|---|
| -15% rent | $15,618 | 5.89% | 0.18% | 1.01 | +$12 |
| -10% rent | $16,848 | 6.36% | 1.71% | 1.09 | +$115 |
| -5% rent | $18,079 | 6.82% | 3.23% | 1.17 | +$218 |
| 0% rent | $19,310 | 7.29% | 4.75% | 1.25 | +$320 |
| +5% rent | $20,540 | 7.75% | 6.27% | 1.33 | +$423 |
| +10% rent | $21,771 | 8.22% | 7.79% | 1.41 | +$525 |
Each row is the whole model re-run with one variable moved — not a slope estimated from the base case.
Where the year-one return actually comes from
| Component | Illustrative annual amount | Of $80,875 invested | Cash? |
|---|---|---|---|
| Pre-tax cash flow | $3,841 | 4.75% | Yes |
| Loan principal paid down | $2,118 | 2.62% | No — equity |
| Appreciation at 3% | $7,950 | 9.83% | No — assumption |
| Total, before tax | $13,909 | 17.20% | |
| Full-year depreciation shield at 24% | $1,949 | 2.41% | Potential tax saving |
| Total with illustrative full-year shield | $15,858 | 19.61% |
The calculator includes the three pre-tax components above. The tax rows are a separate full-year illustration: an April placed-in-service date would reduce the first-year deduction to about $5,753 and the potential saving at 24% to about $1,381. Passive-loss limits can also reduce the current tax benefit.
Two things stand out. Appreciation is more than half the return and it is the only line nobody controls. And principal paydown, at $2,118, is larger than a quarter of the cash flow — a real return that cash-on-cash ignores entirely because it never touches your bank account.
What happens if appreciation is zero?
Set the appreciation assumption to 0% and the year-one return falls from 17.2% to 7.4% — $3,841 of cash flow plus $2,118 of principal on $80,875. That is still a real return, and it is the one that does not depend on the market doing anything.
It is worth running both. A deal that only clears your hurdle with 3% appreciation baked in is a directional bet; a deal that clears it at zero is an income asset that also happens to be exposed to house prices.
Principal paydown accelerates, appreciation compounds
Common questions about rental property ROI
- How do you calculate ROI on a rental property?
- The calculator adds cash flow, loan principal paid down and assumed appreciation, then divides by the cash invested. Here, $3,841 + $2,118 + $7,950 over $80,875 is 17.2% before tax. The separate depreciation example could add about $1,949 of tax savings in a full year if usable at 24%, giving about 19.6% including that benefit.
- Why is ROI so much higher than cash on cash return?
- Because cash-on-cash counts only one of the three pre-tax components. On this deal cash flow is $3,841 of a $13,909 total year-one return; the other 72% arrives as equity rather than as money in your account. Both numbers are correct — they answer different questions, and only one of them pays your bills.
- Should appreciation be counted in ROI?
- Only if you label it as an assumption, because it is the one component you do not control. At 3% a year it is the largest single line in the return above, so a deal that only works with appreciation is a bet on the market rather than an investment in a building. Set appreciation to zero in the calculator and see whether the deal still stands up.
- What return does the depreciation shield add?
- The illustrative tax example allocates 20% of the $269,200 purchase and capitalised closing cost to land, then adds $8,000 of upfront building improvements. That leaves $223,360 depreciable, or about $8,122 per full year over 27.5 years. If usable at a 24% marginal rate, the deduction could save about $1,949 of tax: a further 2.4 percentage points on $80,875. First-year timing and passive-loss limits can reduce the current benefit.
- Is ROI the same as IRR?
- No. ROI as calculated here is a single-year snapshot. IRR accounts for when each dollar arrives across the whole hold and includes the sale, so a deal with a large payday in year ten has a lower IRR than the same payday in year three. The projection on the real estate investment calculator page shows the IRR at every possible exit year.
For the cash component alone, see the cash on cash return calculator. For the full hold period with IRR and equity multiple at each exit year, use the real estate investment calculator, and for the tax shield in detail the rental property depreciation calculator.
The rest of the deal, on the same numbers
The rental analyzer, single-metric calculators, 1% and 50% rules, vacancy comparison and deal report share one rental deal. Strategy calculators save their own assumptions.
- rental property calculatorThe full underwriting model: NOI, cap rate, cash-on-cash, DSCR, amortisation, a 30-year projection and a printable deal report.
- cap rate calculatorNet operating income divided by price, with every expense line shown and the debt service deliberately left out.
- dscr calculatorDebt service coverage ratio against real lender thresholds, plus the loan amount your NOI will actually support.
- cash on cash return calculatorAnnual pre-tax cash flow over every dollar of cash you put in — down payment, closing costs and rehab.
- real estate investment calculatorYear-by-year projection to your exit, with equity multiple and IRR at every possible sale year.
- noi calculatorNet operating income built line by line from gross scheduled rent, and why the mortgage never appears in it.
- gross rent multiplierPrice divided by gross annual rent — the fastest screen there is, and the one that hides the most.
- rental yield calculatorGross yield and net yield side by side, with the gap between them explained in dollars.
- vacancy rate calculatorEmpty days and vacant unit-months turned into the rent they cost, then fed back through your own deal as real NOI and cash-flow differences against your underwriting allowance.
- brrrr calculatorBuy, rehab, rent, refinance, repeat — cash left in the deal, capital recycled, and infinite returns handled properly.
- fix and flip calculatorHard-money points and carry, contingency, selling costs and the ARV at which the project breaks even.
- house hack calculatorWhat your housing actually costs once tenants cover part of it, and what the building looks like after you move out.
- short term rental calculatorADR and occupancy through to NOI, with the long-term lease comparison that decides whether the extra work pays.
- seller financing calculatorOwner-carry notes: payment, balloon balance, interest to the balloon, and what the seller nets versus a cash sale.
- rental property depreciation calculator27.5-year straight line with the IRS mid-month convention, the annual tax shield, and recapture at sale.
- 1 percent rule real estateMonthly rent against purchase price, what the rule was calibrated for, and the interest rate at which it stops working.
- 50 percent rule real estateHalf of gross rent goes to operating expenses. Tested against your own itemised budget, line by line.
- 70 percent rule house flippingMaximum allowable offer for a flip: 70% of after-repair value, less the rehab budget.
- printable rental property deal reportThe whole analysis in a printable report, laid out for Letter and A4, ready to print or send to a lender.
- real estate investing terms glossaryEvery metric on this site defined once, with its formula and a representative worked example.