How do you calculate ROI on a rental property?

There is no single ROI figure — there are several, and they answer different questions. Net yield is annual net operating income divided by the total you paid to acquire the property, and it tells you what the asset earns. Cash-on-cash is the cash left after the mortgage divided by the cash you actually put in, and it tells you what your own money earns. IRR folds in the timing of every payment and the eventual sale, and it is the only one of the three that can compare a deal held for three years against one held for ten. Quoting one without saying which it is is how two people end up arguing about the same property with the same numbers.

What is a good rental yield?

It depends entirely on what the yield is being compared against — the local risk-free rate, the mortgage rate, and what else the same money could buy. A 6% net yield is excellent where borrowing costs 3% and unremarkable where it costs 7%. What matters more than the level is whether the figure is genuinely net: a gross yield of 8% that becomes 4.5% once service charge, commission and vacancy are taken out was never an 8% property.

What is the difference between gross yield and net yield?

Gross yield divides a year of rent by the purchase price and stops there. Net yield subtracts everything the property costs to hold — service charge, maintenance, insurance, letting commission, vacancy, collection loss — and divides by what the purchase actually cost including fees. The gap between the two is usually between a third and a half of the headline figure, and it is entirely made up of things that are easy to leave out and impossible to avoid.

What is cap rate, and how is it different from yield?

Cap rate is net operating income divided by the property’s value, and it is a property of the asset rather than of your purchase — it ignores how you financed it and what fees you paid. That is exactly what makes it useful for comparing two buildings and useless for working out what you will earn. Net yield answers the second question; cap rate answers the first.

What is IRR and why is it different from my yield?

Internal rate of return is the annualised rate at which every cash flow in the deal — the deposit, the instalments, each year of rent, the sale — discounts back to zero. Yield is a snapshot of one year; IRR is the whole holding period including the exit. They differ most on deals whose return depends on the sale, where a modest yield can sit alongside a strong IRR, and on deals with a long off-plan period, where a strong yield at handover is dragged down by years of money committed and nothing coming back.

What is DSCR and what number should I look for?

Debt service coverage ratio is net operating income divided by the mortgage payments for the same year. Below 1.0 the rent does not cover the loan and the shortfall comes out of your pocket every month. Lenders typically want to see 1.2 or better, which leaves room for a void or a repair without the deal turning cash-negative — and the calculator reports the lowest ratio across the whole holding period rather than year one, because year one is usually the easiest.

Is my data saved when I use this calculator?

No. Every figure stays in your browser and nothing is stored on any account. The numbers are only ever sent anywhere when you ask for the PDF, and they are used to render that one file and then discarded — the report is not kept and there is no link to it afterwards.

The investment

Purchase price

QAR

Currency

What rent do you expect each month?

QAR

Nothing is assumed until you enter one.How many years are you planning to keep this property?

years

How long do you expect a tenant to be in it?

years

months

Answer the question above first.

Payment plan

Buying with installment

Modelled as a completed purchase — the whole price on day one and rent from month one. Turn it on to pay by installments and start the rent at handover; both change the return.

Financing

Buying with a mortgage

Modelled as a cash purchase. Leverage raises the return on your own money and lowers the cover on the rent — turn it on to see both.

Costs and expenses

The service charge is usually what decides whether a high-yield listing is a high-yield investment.

QAR/yr

When you sell

What the property is worth at the end, and what the sale takes out of it.

Yearly price growth

%/yr

Selling commission

A share of the sale price, not of what you paid.

Estimated property value when you sell: —
Estimated selling commission: —
Estimated amount you receive: —

Enter a purchase price and how long you will hold it, and the sale value works itself out.

What it returns

Estimated returns based on your current assumptions.

Estimated yearly ROI

—

Enter a purchase price.

Total ROI · 1 year

—

Enter a purchase price.

Estimated total profit

—

Enter a purchase price.

Monthly cash flow

—

Enter a purchase price.

Rental yield

—

Enter a purchase price.

Cap rate

—

Enter a purchase price.

IRR

—

Enter a purchase price.

Investment summary

Holding period: 1 year
Time with a tenant: —
Rent collected · year 1: —
Rent collected · 1 year: —
Initial investment: —
Total acquisition cost: —
Year 1 NOI: —
Net rental yield: —
Estimated sale value: —
Selling costs: —

Advanced investment metrics

Unleveraged IRR: —
Financing: Not financed
Break-even occupancy: —
Equity multiple: —

Projections, not guarantees. Every figure follows from the assumptions above; change one and the whole model moves.

Take it with you

A PDF of this analysis — the headline figures, the acquisition, the year-by-year projection, the exit and the sensitivity grid.

Property titleTitles the PDF. Optional.

No monthly rent yet, so every income figure in the report will read as zero.

Building the PDF is the one thing that sends your figures to the server. They render that single file and are not kept.

Real Estate Investment Calculator

Calculate the potential return of a property investment based on purchase price, rental income, expenses, financing, appreciation, and your investment period. Explore ROI, rental yield, Cap Rate, cash flow, Cash-on-Cash Return, and IRR in one place.

No account needed
Nothing is saved
Download as a PDF

What Does a Real Estate Investment Calculator Calculate?

Income, expenses, financing, appreciation and the eventual sale — and the ten metrics that measure them.

A property investment is more than its purchase price or monthly rental income. A comprehensive real estate investment calculator helps investors understand how income, expenses, financing, property appreciation, and the eventual sale of a property can affect overall returns.

The Flatwayz calculator helps you evaluate important investment metrics, including:

Return on Investment (ROI)
Internal Rate of Return (IRR)
Gross Rental Yield
Net Rental Yield
Cap Rate
Cash-on-Cash Return
Cash Flow
Equity Multiple
Projected Property Value
Investment Profit

Each metric measures a different part of an investment, so looking at several metrics together can provide a more complete picture.

Return on Investment (ROI)

Return on Investment measures the profit generated by an investment relative to the amount invested.

ROI = Investment Profit ÷ Total Investment Cost × 100

For real estate, the calculation can become more complex because investors may receive rental income, pay operating expenses, use financing, make staged payments, and eventually sell the property.

Internal Rate of Return (IRR)

Internal Rate of Return, or IRR, estimates the annualized return of an investment while taking the timing of cash flows into account.

This can be particularly useful for investments involving:

Off-plan payment plans
Staged payments
Mortgage financing
Rental income
Property appreciation
Sale proceeds

Two properties can generate the same total profit but have different IRRs if the investor’s money is deployed at different times.

Gross Rental Yield

Gross rental yield measures annual rental income against the property’s purchase price.

Gross Rental Yield = Annual Rental Income ÷ Property Purchase Price × 100

For example, a property purchased for QAR 2,000,000 that generates QAR 120,000 in annual rent has a gross rental yield of 6%.

Gross rental yield is useful for quickly comparing income-producing properties, but it does not account for operating expenses.

Net Rental Yield

Net rental yield considers relevant operating expenses before calculating the property’s rental return.

These expenses may include:

Maintenance
Service charges
Property management
Insurance
Vacancy
Owner-paid utilities
Other operating expenses

Net rental yield can provide a more realistic view of the income generated by a property than gross rental yield alone.

Cap Rate

Capitalization Rate, commonly called Cap Rate, measures a property’s Net Operating Income relative to its value.

Cap Rate = Net Operating Income ÷ Property Value × 100

Cap Rate is useful when comparing income-producing properties because it focuses on operating performance before financing.

Cash-on-Cash Return

Cash-on-Cash Return measures the annual cash return generated by a property relative to the actual cash invested by the investor.

This can be particularly useful when financing is involved. Two investors purchasing the same property can have different Cash-on-Cash Returns depending on their down payment and financing structure.

Cash Flow

Cash flow shows how much money a property generates after considering relevant income and expenses.

A property can have an attractive rental yield but still produce weak or negative cash flow because of:

High service charges
Maintenance
Vacancy
Property management
Financing costs
Other operating expenses

Property Appreciation

Property appreciation represents the potential increase in a property’s value over the investment period.

If you enter an expected annual appreciation rate, the calculator can use that assumption to estimate potential future property value and its contribution to overall investment returns.

Appreciation is an assumption, not a guaranteed return.

Other Figures the Calculator Reports

Alongside the metrics above, the calculator reports three measures that matter most to financed and longer-held investments:

Net Present Value (NPV) — every cash flow discounted back to today at a rate you choose.
Debt Service Coverage Ratio (DSCR) — Net Operating Income divided by the mortgage payments for the same year. Below 1.0 the rent does not cover the loan.
Break-even occupancy — the occupancy at which cash flow reaches zero, which shows how much vacancy the investment can absorb.

Why Rental Income Alone Isn’t Enough to Measure Property ROI

Two properties at the same price and the same rent can return very differently. This is what accounts for the gap.

One of the simplest ways to evaluate a rental property is to divide annual rent by the purchase price.

While this provides a quick rental yield estimate, it does not show the complete economics of a property investment.

Two properties can have the same purchase price and rental income but produce very different returns because of differences in:

Service charges
Maintenance
Vacancy
Property management
Acquisition costs
Financing
Property appreciation
Selling costs

A complete real estate ROI analysis considers the property’s cash flow from acquisition through exit rather than looking only at its advertised rental income.

What Costs Should You Include When Calculating Real Estate ROI?

What it costs to buy, what it costs to hold and what it costs to sell — all three change the return.

A realistic investment and return calculator should consider both the initial cost of acquiring a property and the ongoing costs of owning it.

Initial Investment Costs

Depending on the property and market, these may include:

Purchase price
Brokerage or commission
Registration and acquisition charges
Legal or administrative costs
Financing fees
Furnishing
Renovation
Other acquisition expenses

These costs affect the actual capital required to acquire the property.

Ongoing Property Expenses

Recurring expenses may include:

Service charges
Maintenance
Property management
Insurance
Vacancy
Owner-paid utilities
Repairs
Other operating expenses

Ignoring recurring expenses can make an expected return appear higher than the actual return.

Exit Costs

Selling a property can also involve costs such as:

Selling brokerage
Transaction costs
Repairs before sale
Outstanding financing
Other applicable selling costs

Including these costs can provide a more realistic estimate of the investor’s final proceeds. Which of them apply, and at what rate, varies by market and is worth confirming locally.

ROI vs IRR vs Rental Yield vs Cap Rate

A side-by-side comparison of what each metric measures and what it is best used for.

These are not competing answers to one question. They are answers to different questions, and most arguments about whether a property is a good buy are really disagreements about which question is being asked.

Metric	What it measures	Best used for
ROI	Overall investment profit relative to the investment	Understanding total return
IRR	Annualized return considering the timing of cash flows	Comparing investments with different cash-flow timing
Gross Rental Yield	Annual rent relative to the purchase price	Quick income comparison
Net Rental Yield	Rental income after operating expenses	Understanding income after property costs
Cap Rate	Net Operating Income relative to property value	Comparing income-producing properties
Cash-on-Cash Return	Annual cash return relative to cash invested	Evaluating leveraged property investments
Cash Flow	Income remaining after relevant expenses	Assessing ongoing property performance
Equity Multiple	Total distributions relative to invested equity	Understanding total cash returned

How to Calculate the ROI of a Property

The basic formula, and the ten cash flows a complete property analysis has to place in time.

A basic property ROI calculation is:

ROI = Total Investment Profit ÷ Total Investment Cost × 100

However, real estate investments often involve multiple cash flows rather than one initial payment. A realistic analysis may include:

1Initial deposit
2Staged property payments
3Acquisition costs
4Rental income
5Operating expenses
6Financing payments
7Property appreciation
8Selling costs
9Outstanding debt
10Final sale proceeds

Because these cash flows can happen at different points in time, a simple ROI percentage may not tell the whole story. This is why investors may also want to evaluate IRR, rental yield, cash flow, Cap Rate and Cash-on-Cash Return.

Real Estate Investment Example

A QAR 2,000,000 apartment worked through from gross rental yield to net.

The following is an illustration of the arithmetic rather than a prediction about any property or market.

Purchase price: QAR 2,000,000
Monthly rent: QAR 10,000
Annual rental income: QAR 120,000
Annual operating expenses: QAR 20,000
Net Operating Income: QAR 100,000
Gross Rental Yield: 6%
Net Rental Yield: 5%

This example demonstrates why gross rental yield and net rental yield can produce different results. A complete investment analysis can go further by incorporating financing, appreciation, staged payments, holding period and exit costs.

The calculator goes further still, dividing net operating income by the total acquisition cost rather than the purchase price alone — so brokerage, registration and other acquisition charges push the net figure lower again, and it is that lower figure which is comparable to a savings rate.

Real Estate Investment in Qatar

The assumptions worth modeling before you commit, and why payment timing matters most off-plan.

When evaluating property investment in Qatar, investors may want to look beyond the advertised purchase price and consider the property’s complete financial profile. Important assumptions can include the purchase price, rental income, service charges, maintenance, vacancy, property management, financing, the payment schedule, expected property appreciation, expected rental growth, the holding period, the exit value and selling costs.

For off-plan property, payment timing can be particularly important, because the amount and timing of capital deployed can affect the investment’s overall return. An off-plan purchase pays by instalments across a payment plan and earns nothing until handover. Modelling it as a ready property — the whole price on day one, rent from month one — overstates the return twice over. The Flatwayz investment calculator allows investors to model these assumptions rather than relying only on the headline property price or rental yield.

Ownership eligibility, registration requirements, transfer fees and the tax treatment of rental income are matters of current regulation rather than arithmetic, and they change. Nothing on this page is legal, tax or investment advice — confirm the rules that apply to your situation with an appropriately qualified professional and with the relevant Qatari authority before you commit to a purchase.

Is Real Estate a Good Investment?

There is no ROI or rental yield that answers this on its own. What to weigh instead.

There is no single ROI or rental yield that automatically makes a property a good or bad investment. The attractiveness of an investment depends on the purchase price, the rental income, the operating expenses, the cost of financing, expected appreciation, the investment period, risk, liquidity, your own cash-flow requirements and what the same money could do elsewhere.

So instead of asking only “is the ROI high?”, it is worth asking: how much capital am I committing, what cash flow will the property produce, what assumptions drive the return, and what risks could change the outcome? Every figure a projection produces is a fact about its assumptions before it is a fact about the property — a ten-year IRR built on 4% appreciation and 95% occupancy is a statement about those two numbers, and neither has happened yet. That is why the calculator re-runs the whole model across a grid of values rather than reporting one result.

Nothing here is advice, a valuation or a forecast, and no figure is verified against a listing, a lease or a lender. It is arithmetic performed accurately on numbers you supplied.

Common Questions

Eight questions on ROI, rental yield, Cap Rate, IRR, DSCR and off-plan property.

How do you calculate ROI on a rental property?: There is no single ROI figure — there are several, and they answer different questions. Net yield is annual net operating income divided by the total you paid to acquire the property, and it tells you what the asset earns. Cash-on-cash is the cash left after the mortgage divided by the cash you actually put in, and it tells you what your own money earns. IRR folds in the timing of every payment and the eventual sale, and it is the only one of the three that can compare a deal held for three years against one held for ten. Quoting one without saying which it is is how two people end up arguing about the same property with the same numbers.
What is a good rental yield?: It depends entirely on what the yield is being compared against — the local risk-free rate, the mortgage rate, and what else the same money could buy. A 6% net yield is excellent where borrowing costs 3% and unremarkable where it costs 7%. What matters more than the level is whether the figure is genuinely net: a gross yield of 8% that becomes 4.5% once service charge, commission and vacancy are taken out was never an 8% property.
What is the difference between gross yield and net yield?: Gross yield divides a year of rent by the purchase price and stops there. Net yield subtracts everything the property costs to hold — service charge, maintenance, insurance, letting commission, vacancy, collection loss — and divides by what the purchase actually cost including fees. The gap between the two is usually between a third and a half of the headline figure, and it is entirely made up of things that are easy to leave out and impossible to avoid.
What is cap rate, and how is it different from yield?: Cap rate is net operating income divided by the property’s value, and it is a property of the asset rather than of your purchase — it ignores how you financed it and what fees you paid. That is exactly what makes it useful for comparing two buildings and useless for working out what you will earn. Net yield answers the second question; cap rate answers the first.
Does the calculator work for off-plan properties?: Yes, and it treats them differently, because the arithmetic genuinely differs. An off-plan purchase pays by instalments over a payment plan rather than in full on day one, and earns nothing until handover. Modelling it as a ready property — whole price at the start, rent from month one — overstates the return twice: it assumes money is committed earlier than it is, and income arrives before it does.
What is IRR and why is it different from my yield?: Internal rate of return is the annualised rate at which every cash flow in the deal — the deposit, the instalments, each year of rent, the sale — discounts back to zero. Yield is a snapshot of one year; IRR is the whole holding period including the exit. They differ most on deals whose return depends on the sale, where a modest yield can sit alongside a strong IRR, and on deals with a long off-plan period, where a strong yield at handover is dragged down by years of money committed and nothing coming back.
What is DSCR and what number should I look for?: Debt service coverage ratio is net operating income divided by the mortgage payments for the same year. Below 1.0 the rent does not cover the loan and the shortfall comes out of your pocket every month. Lenders typically want to see 1.2 or better, which leaves room for a void or a repair without the deal turning cash-negative — and the calculator reports the lowest ratio across the whole holding period rather than year one, because year one is usually the easiest.
Is my data saved when I use this calculator?: No. Every figure stays in your browser and nothing is stored on any account. The numbers are only ever sent anywhere when you ask for the PDF, and they are used to render that one file and then discarded — the report is not kept and there is no link to it afterwards.

Analyze Your Property Investment Before You Buy

A property’s purchase price is only one part of the investment equation. Model your rental income, expenses, financing, appreciation, holding period and exit assumptions to understand the potential return of your property investment.

Calculate Your Investment Put the analysis in a brochure

The calculator and the PDF it produces are free and need no account. If you sell property rather than buy it, the same analysis is a section of a Flatwayz brochure — the yield, the projection and the exit printed alongside the photographs and the price, from the same calculation, so the document a client receives answers the investment question without a second attachment. See what a brochure looks like, or read more about Flatwayz.