US Rental Property

How much rent
does the property need?

Work backward from operating costs, mortgage payments and estimated income tax. Find the rent needed to cover the property — or leave the monthly surplus you want after setting money aside.

Vacancy and costsPrincipal and interestDepreciation and taxRequired rent

Covering the mortgage is only part of break-even

A rent that pays the mortgage can still leave you subsidizing the property. Property taxes, insurance, HOA dues, owner-paid bills, repairs and empty periods all compete for the same rent. A reserve for later replacements reduces what is available to spend even before a major repair happens.

Here, break-even means that expected rent covers those costs, the full mortgage payment, the reserve and estimated income tax. The monthly surplus target starts at zero. Raise it if you want income beyond covering the property. That target is a cash amount, not a cap rate or a promised return on your equity.

Your rental scenario

The underlined amounts are an editable starting example. This is a complete year for a residential rental already placed in service before the year starts, with no personal use. It assumes deductible ordinary operating expenses, a single fixed-rate repayment loan and the standard 27.5-year building recovery period. The financing starts at the entered loan balance and amortization term; closing-day costs are separate.

The property price is $ and the loan starts at % of that price, at % over years. The advertised monthly rent is $ , with % expected vacancy and % management fees on collected rent. Each year, you pay $ property tax, $ insurance, $ ordinary HOA dues and $ other owner-paid bills. Repairs paid and deductible that year are $ , and you set aside another $ for future replacements. The documented building basis, excluding land, is $ , with $ still unrecovered. You use a combined marginal federal and state income-tax planning rate of % and want $ left each month after all these costs and the reserve.

Property price: $1,000–$10,000,000; financed share: 0–100%; interest: 0–15%; term: 1–40 whole years; monthly rent: $0–$50,000; vacancy: 0–100%; management: 0–100%; property tax, insurance, HOA and other costs: each $0–$100,000 yearly; repairs: $0–$250,000 yearly; reserve: $0–$100,000 yearly; both building-basis amounts: each $0–$10,000,000; income-tax planning rate: 0–60%; monthly surplus target: $0–$50,000. These are model planning ranges, not loan limits or confirmation that an expense is deductible. The tax-basis and annual cost inputs remain independent of price.

What the entered rent produces before financing

Rent collected and operating costs

Scheduled annual rent$26,400.00
Less vacancy allowance$2,112.00
Expected rent collected$24,288.00
Less management fees$1,943.04
Less property tax$3,600.00
Less insurance$1,800.00
Less ordinary HOA dues$0.00
Less other owner-paid bills$600.00
Less deductible repairs paid$1,200.00
Net operating income$15,144.96

At 8% vacancy, the expected rent collected is $24,288.00 a year. After management and $7,200.00 of other operating costs, the property produces $15,144.96 before the loan, income tax and reserve.

Separate loan interest from principal

The next twelve mortgage payments

Starting loan balance$225,000.00
Monthly principal and interest$1,422.15
Annual principal and interest$17,065.84
Of which: interest$14,550.95
Of which: principal repaid$2,514.88
Balance after twelve payments$222,485.12

The twelve payments total $17,065.84: $14,550.95 of interest and $2,514.88 of principal. The payment figure excludes tax and insurance escrow; those expenses are counted separately in the operating sheet.

Taxable profit is different from cash left over

Estimated rental income tax

Net operating income$15,144.96
Less deductible mortgage interest$14,550.95
Less building depreciation$8,727.27
Taxable rental result-$8,133.27
Estimated additional income tax$0.00

The rental's taxable result is -$8,133.27 after actual mortgage interest and $8,727.27 of building depreciation. The estimated additional income tax is $0.00. The tax loss is shown, but no refund or offset against other income is assumed.

Cash available at the entered rent

After payments, reserve and estimated tax

Net operating income$15,144.96
Less full mortgage payments$17,065.84
Less replacement reserve$1,200.00
Cash before income tax-$3,120.88
Less estimated income tax$0.00
Annual cash available-$3,120.88
Monthly average cash available-$260.07
Selected monthly surplus target$0.00

At the entered rent, -$260.07 a month remains on average after operating costs, full loan payments, the reserve and estimated income tax. Your selected monthly surplus is $0.00.

Monthly advertised rent needed for your target
$2,507.27

The entered $2,200.00 rent is $307.27 below the required rent. Its average monthly cash result is -$260.07, which is $260.07 below your $0.00 target.

A replacement reserve is not a repair expense

The reserve is money set aside for future work. It reduces your spendable cash here, but saving money is not itself a current tax deduction. Enter paid, deductible repairs separately. Replacing or substantially improving an asset can require capitalization and depreciation instead of an immediate deduction.

Check the property tax bill, insurance quote and HOA budget for the actual property. Ordinary deductible HOA expenses belong in the annual HOA field; a capital special assessment needs separate treatment. Include only owner-paid utilities and other ongoing bills in the other-costs field. If mortgage escrow collects tax and insurance, do not count that escrow payment again: this model already includes the underlying expenses.

Depreciation can reduce tax without paying the loan

Land is not depreciable. For residential rental buildings under the general system used here, the standard recovery period is 27.5 years. The model uses the original depreciable building basis divided by that period and caps the deduction at the amount still unrecovered. These tax inputs are separate from the price you test.

This full-year estimate excludes the placed-in-service and disposal-year mid-month adjustments, alternative depreciation systems and separate assets with other recovery periods. It also excludes bonus depreciation, cost segregation and sale-time depreciation recapture. Use your existing depreciation schedule to check the basis and remaining amount.

Tax savings are not guaranteed cash receipts

The estimated tax is positive rental profit multiplied by your combined income-tax planning rate. That rate is an assumption: actual federal and state rules interact, and your marginal rate can change as income rises. This is not a calculation of your household tax return. QBI deductions, local income tax, NIIT and any tax on a sale are omitted.

A negative tax result is not treated as a refund. Rental losses can be limited by passive activity and at-risk rules, with exceptions depending on your circumstances. Any benefit from offsetting other income or using prior losses needs separate verification. That is why the cash answer does not rely on a refund arriving to pay the mortgage.

Test the required rent against the local market

The required figure is the advertised rent before expected vacancy and management fees. It is rounded upward to the cent to cover the chosen target under the model. If no rent is retained after those allowances, the result explains what must change. A requirement above the model's rent range also explains which assumptions need changing.

Compare the answer with genuinely comparable leases, not the asking rent that makes the spreadsheet attractive. If comparable properties cannot command that rent, revisit purchase price, financing, operating costs or your surplus target. The calculation does not establish a lawful rent increase or predict tenant demand.

A zero surplus target covers the entered costs but does not compensate you for your time, equity or risk. A positive monthly average also needs a cash buffer: annual bills, vacancies and repairs do not arrive evenly. Unexpected work, letting fees and bad debts can leave a particular year below the plan.

Methodology

Annual rent is reduced by vacancy and management, then by operating costs. The model calculates interest and principal for twelve monthly loan payments, caps full-year building depreciation, and estimates tax on positive rental profit. It solves for the rent that leaves the selected surplus after full loan payments, reserve and tax; tax losses create no assumed refund.

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Frequently Asked Questions

Is break-even rent the same as a good investment?
No. It covers the entered operating costs, loan payments, reserve and estimated income tax. It does not compensate you for risk, time or the opportunity cost of your equity. Enter a monthly surplus target to require money beyond those costs.
Why is the whole mortgage payment deducted from cash but not taxable income?
Interest is a financing expense. Principal repays the loan and reduces debt. Both use cash, but principal is not a rental expense deducted from taxable income.
Does a tax loss mean I receive a refund?
Not automatically. Passive activity and at-risk rules can restrict rental losses. This model does not count a tax refund or compensation against other income.
Why does changing the purchase price not change the depreciation basis?
The building basis is a documented tax input, excluding land. It can differ from a current price or appraisal. It remains independent so testing a price does not silently rewrite the tax records.
Can I use this for the first year after buying?
The scenario uses a complete rental year after the placed-in-service year. First-year building depreciation uses the mid-month convention and needs a separate calculation. Closing costs and a part-year rental period also need separate treatment.
What happens with complete vacancy or a management fee of 100%?
If no rent remains after vacancy and management, no finite rent can cover positive costs or a surplus target. The result explains which assumption must change. If every cost and the target are zero, no rent is required.