How To Figure Return On Investment On Rental Property?

Return on investment on rental property tells you how much a house earns compared with the money you put into it. That sounds simple. In practice, investors use several formulas, and they do not all answer the same question.

One number measures the property before any loan. Another measures the cash that hits your bank account after the mortgage. A third tries to capture the full first-year picture, including loan paydown and possible appreciation.

This article walks through those calculations step by step, with a worked example you can copy. You will also see which expenses belong in the math, which ones do not, and where beginners usually go wrong.

Table of Contents

What “ROI” Means for a Rental

ROI is profit divided by the money you invested, shown as a percentage. For a rental, profit can mean different things:

Cash left after bills and the mortgage
Income the building produces before financing
A broader total that includes equity growth

If you mix those ideas, two people can look at the same house and report very different “ROI.” Start by naming the metric you are using.

The three calculations most small investors need are:

Net operating income (NOI), which feeds every other formula
Cap rate, which judges the property itself
Cash-on-cash return, which judges your actual cash

A fourth figure, total first-year ROI, is useful only if you label the extra pieces clearly.

Step 1: Gather the Right Numbers

You need more than list price and monthly rent.

Income inputs

Market rent for 12 months
Other income, such as parking or laundry
A vacancy allowance (many investors start with 5% to 10% if they lack local data)

Cash you put in

Down payment
Closing costs
Immediate repairs needed to rent the home
Furnishings or make-ready costs, if you pay them

Operating costs (recurring)

Property taxes
Insurance
Property management (include this even if you self-manage, so you price your time)
Routine maintenance and repairs
Landlord-paid utilities
HOA dues
Lawn, snow, pest control, and advertising

Do not put these in NOI

Mortgage principal and interest
Major replacements such as a roof or HVAC (budget those separately as capital expenses)
Depreciation (a tax deduction, not a cash bill)
Income taxes (they depend on you, not the property)

Leaving the loan out of NOI is the rule, not a preference. NOI measures the building. Your loan measures your deal.

Step 2: Calculate Net Operating Income

Use this sequence:

Gross potential rent = monthly rent × 12

Effective income = gross potential rent − vacancy + other income

NOI = effective income − operating expenses

Example (illustration only):

Purchase price: $220,000
Monthly rent: $1,900
Gross potential rent: $22,800
Vacancy at 8%: $1,824
Effective income: $20,976
Operating expenses: $8,400
NOI: $12,576

That $12,576 is the engine for cap rate and cash flow. If NOI is sloppy, every return figure after it is sloppy too.

A common shortcut is the “50% rule,” which assumes operating costs eat about half of rent. Treat that as a first filter only. Taxes, insurance, and HOA dues vary too much by city for a single percentage to replace real bills.

Step 3: Figure Cap Rate

Cap rate = NOI ÷ purchase price

In the example:

$12,576 ÷ $220,000 = 5.7%

Cap rate ignores your down payment and interest rate. That is the point. It lets you compare two properties as if both were bought with cash.

A higher cap rate usually means more income for the price, and often more risk, an older building, or a weaker location. A lower cap rate is common in high-demand cities where buyers pay more for future growth.

There is no single “good” cap rate for the whole country.

U.S. apartment cap rates in mid-2026 have been running in the mid-5% range on many institutional deals, while small rentals in secondary markets can print higher or lower depending on condition and rents.

Compare a listing with nearby sold rentals, not with a national slogan.

Step 4: Figure Cash-on-Cash Return

This is the formula most beginners actually want when they ask how to figure return on investment on rental property they plan to finance.

Annual cash flow = NOI − annual mortgage payments (principal and interest)

Cash-on-cash return = annual cash flow ÷ total cash invested

Keep building the example:

Down payment (25%): $55,000
Closing costs: $6,600
Initial repairs: $8,400
Total cash invested: $70,000
Annual mortgage payments: $10,560
Annual cash flow: $12,576 − $10,560 = $2,016
Cash-on-cash return: $2,016 ÷ $70,000 = 2.9%

That 2.9% is the cash yield on your dollars this year. It is not the same as the 5.7% cap rate. The loan created the gap.

Leverage can raise or crush cash-on-cash return.

If the mortgage rate is lower than the property’s cap rate, borrowed money can improve your cash yield. If the rate is higher, a loan can turn a decent building into thin or negative cash flow.

That pattern has been common on retail single-family rentals while mortgage rates have stayed well above the cheap-money years.

Many investors talk about an 8% to 12% cash-on-cash target.

Treat that as a goal, not a guarantee. In expensive metros, first-year cash yield is often lower, and buyers accept that if they also want long-term appreciation.

In cheaper markets, cash flow can look better on paper if you underwrite vacancy and repairs honestly.

Step 5: Add the Rest for a Fuller First-Year ROI

Cash-on-cash return leaves out three real sources of wealth:

Principal paydown (the tenant’s rent reduces your loan)
Appreciation (the house may rise in value)
Tax effects (depreciation can lower taxable income)

A simple total first-year ROI looks like this:

Total first-year ROI = (cash flow + principal paydown + estimated appreciation) ÷ cash invested

Suppose year-one principal paydown is $2,400 and you model 3% appreciation on $220,000, or $6,600:

($2,016 + $2,400 + $6,600) ÷ $70,000 = 15.7%

That 15.7% is not spendable cash. Appreciation is an estimate. You collect it only if you sell or refinance, and values can fall. If you include it, say so. If you want a conservative number for “can I cover the bills,” use cash-on-cash return instead.

Residential rental buildings (not the land) are generally depreciated over 27.5 years for U.S. tax purposes.

That deduction can improve after-tax results, but the exact savings depend on your tax bracket, how you hold title, and current IRS rules.

Do not bake a guessed tax refund into a purchase decision without a tax pro.

Cap Rate vs. Cash-on-Cash vs. Total ROI

Metric	Formula	Includes the loan?	Best use
Cap rate	NOI ÷ purchase price	No	Compare properties
Cash-on-cash return	Annual cash flow ÷ cash invested	Yes	Judge your cash yield
Total first-year ROI	(Cash flow + paydown + appreciation) ÷ cash invested	Yes	See the full paper return

Use cap rate when a seller quotes “great ROI” but will not discuss the mortgage. Use cash-on-cash return when you are deciding whether your down payment is working. Use total ROI only after you separate cash from paper gains.

Internal rate of return (IRR) goes further by timing every future cash flow and a future sale. It is the right tool for a five- or ten-year hold. It is the wrong first tool if you still need to confirm next year’s rent and insurance.

Screening Shortcuts (and Their Limits)

The 1% rule. Monthly rent is at least 1% of purchase price. A $200,000 house would need $2,000 a month. It is a fast screen, not a full analysis. Taxes and insurance can still sink the deal.

Gross rent multiplier. Price divided by annual rent. Lower can mean cheaper income, or a tired property in a weak street.

DSCR. Lenders divide NOI by annual debt service. Many investor-loan programs look for coverage around 1.20 to 1.25 or higher. A house can have a fair cap rate and still fail this test if the loan is too large.

None of these replace a line-item budget.

Common Mistakes When You Figure Rental ROI

Using the seller’s rent instead of what the unit would lease for today
Skipping vacancy
Forgetting closing costs and make-ready work in “cash invested”
Putting the mortgage inside NOI
Ignoring capital reserves, then acting shocked by a water heater
Counting hoped-for appreciation as if it were rent
Comparing an all-cash cap rate with a leveraged cash-on-cash return as if they were twins

Run the same property twice: once with conservative rent and higher expenses, once with the seller’s story. If the deal only works in the optimistic version, you do not have a margin of safety.

A Simple Workflow You Can Reuse

Confirm market rent and a realistic vacancy rate.
List operating expenses from tax records, insurance quotes, and local management fees.
Calculate NOI and cap rate.
Add your actual loan terms and cash to close.
Calculate cash flow and cash-on-cash return.
Stress-test a 5% rent drop and a 10% expense increase.
Only then layer in principal paydown, a conservative appreciation rate, and tax notes.

If cash-on-cash return is near zero, decide whether you are buying income or buying a long-term asset. Both can be valid. They are not the same investment.

FAQs About How to Figure Return on Investment on Rental Property

Is rental property ROI the same as stock market ROI?

The basic idea is the same: gain divided by money invested. A rental adds extra moving parts, including debt, vacancy, repairs, and a sale that is slower and more expensive than selling a stock. Always say which rental formula you used.

Should I include closing costs in the ROI calculation?

Yes, if you want cash-on-cash return to reflect reality. Closing costs and initial repairs are cash that left your account. Cap rate usually uses purchase price only, which is why the two percentages differ.

What if cash-on-cash return is negative?

The property is not covering operating costs and the mortgage from rent alone. You would be writing a check each month. That can still make sense for a short renovation period. It is a problem if the finished, rented property still cannot break even.

Does a higher ROI always mean a better rental?

No. A high cash yield can come with deferred maintenance, weak tenants, or a declining neighborhood. Pair the percentage with condition, location, and how much time you will spend managing the asset.

Conclusion

To figure return on investment on rental property, calculate NOI first, then cap rate for the building and cash-on-cash return for your cash. Use a broader first-year ROI only when you separate real cash from loan paydown and estimated appreciation.

Pull the latest rent comps, tax bill, and insurance quote, then run those three formulas before you write an offer. The arithmetic is simple. The deal quality lives in the inputs.

Disclaimer

This article is general educational information about common real estate return formulas. It is not tax, legal, or investment advice. Loan terms, property taxes, insurance, rents, and tax rules vary by location and change over time. Worked figures are illustrations, not predictions. Review any purchase with a local real estate professional, lender, and tax advisor.

How to Figure Return on Investment on Rental Property?