Rental Yield Calculator: Gross vs Net vs Real Yield

A flat advertised at a 6% gross rental yield can quietly land closer to 4.3% once running costs and purchase fees are counted, and barely 1.25% once inflation is stripped out. Same property, same rent. The advert just isn't telling you the part that matters. That gap, between the headline percentage and the money that actually reaches your account, is the entire reason a Buy-to-Let Calculator earns its place.

This guide walks through gross, net and real rental yield without the jargon, shows the formula for each, and runs one worked example with numbers that hold up in any currency or market. By the end you'll be able to read a listing anywhere in the world and estimate the real return three ways: before costs, after costs, and after inflation.

What is rental yield?

Rental yield is the annual rent a property produces, written as a percentage of its value or of the money tied up in it. The point of expressing it as a percentage is comparison: a flat in one city and a house in another sit on completely different price tags, but their yields can be lined up side by side. There are three layers worth knowing. Gross yield compares rent to price and nothing else. Net yield takes running costs out first. Real yield then strips out inflation, so the figure reflects actual buying power rather than a headline number that loses value every year.

Why rental yield matters

A property earns income while you hold it, and yield is the cleanest way to compare that income across very different homes and markets. Weighing a small city apartment against a larger suburban house? You can't judge them on price or rent alone. Yield turns both into one number you can actually compare.

It also keeps a property honest against everything else competing for the same money. When interest rates and bond returns move, the yield a property needs in order to look attractive moves with them. Housing data from bodies such as the OECD shows just how far returns swing between countries, which is exactly why a standardised measure is more reliable than gut feel.

One thing yield does not measure is capital growth. A property can post a thin yield while its price climbs steadily, or a fat yield while its value goes nowhere. Yield is the income story only. That's why the gross, net and real layers matter before anyone draws conclusions about the total return.

How rental yield is calculated

Knowing how to calculate rental yield comes down to one idea repeated at three layers: take an income figure, divide it by a value figure, multiply by 100. What changes between gross, net and real is which income and which value you feed in.

Gross yield (%) = (annual rent / property price) x 100

Net yield (%)   = ((annual rent - annual costs) / total invested) x 100

Real yield (%)  = ( (1 + net yield) / (1 + inflation) - 1 ) x 100
                  where net yield and inflation are entered as decimals
                  e.g. 4.29% goes in as 0.0429, 3% as 0.03

Where:

Annual rent = monthly rent times 12, before any deductions
Property price = the purchase price, or current market value
Annual costs = management, maintenance, insurance, a vacancy allowance for empty months, and any building or community charges
Total invested = the price plus acquisition costs such as legal fees and any purchase or transfer tax
Inflation = the annual rate that converts a money return into a buying-power return

Think of it this way: gross is the quick screen, net is the number you actually live on, and real is the reality check. Two properties can show identical net yields and still leave investors with very different outcomes once their local inflation rates differ.

A worked example with real numbers

Take an investor, Mara, sizing up a single property. The figures carry no currency symbol on purpose, so they read the same whether you think in dollars, euros, pounds or rupees.

Property price: 200,000
Acquisition costs (legal, transfer tax, survey): 10,000, so total invested is 210,000
Monthly rent: 1,000, so annual rent is 12,000
Annual running costs: management 1,200, maintenance 600, insurance 300, vacancy allowance 600, building charge 300, which comes to 3,000

Step one, gross yield. Annual rent of 12,000 divided by the 200,000 price is 0.06, or 6.00%. That's the figure most adverts lead with.

Step two, net yield. Take the 3,000 of running costs out of the 12,000 rent, leaving net income of 9,000. Measured against the price that's 9,000 / 200,000 = 4.50%. Measured against the full 210,000 actually invested it's 9,000 / 210,000 = 4.29%. The second number is the honest one, because the cost of buying is real money that has to earn its keep too.

Step three, real yield. Assume inflation of 3%. The formula (1.0429 / 1.03) minus 1 gives 0.0125, about 1.25% in buying power. Short on time? Subtracting 4.29% minus 3% lands at roughly 1.29% — the shortcut differs from the exact 1.25% by only a few hundredths of a point at rates this low.

The advert said 6%. After costs and purchase fees it was 4.29%. After inflation, the real return was about 1.25%. One property, three very different numbers.

There's one more layer that catches new investors out: tax. Apply a 35% marginal rate to the 9,000 of net profit and roughly 3,150 disappears, leaving 5,850. That drops the yield on the 210,000 invested to about 2.79%, and once inflation is applied the real, after-tax return sits close to break-even. Tax treatment varies by country and personal circumstance, so treat this layer as illustrative rather than a rule.

How to use the rental yield calculator

The rental yield calculator asks for a handful of inputs and hands back the gross and net figures side by side. Enter the property price, the rent (monthly or annual), the acquisition costs and the recurring annual costs. It divides income by value at each layer, so the distance between a tempting gross number and a realistic net one shows up immediately.

Read the gross figure as a first filter and the net figure as the one to plan around, which is really the heart of how to calculate rental yield in practice. Add an inflation assumption and the real figure tells you what the income is worth in steady buying power. Comparing two properties then comes down to lining up their net results. Open the Buy-to-Let Calculator, drop in your own numbers, and watch how fast the return moves when you account for costs that are easy to forget.

Common scenarios

Yield behaves differently depending on the property and the market. Three cases show how to read it.

High yield, lower price property

An apartment bought for 120,000 and rented out at 850 a month earns 10,200 a year, a gross yield of 8.50%. Strip out 2,000 of annual costs and, measured against the price, the net yield is about 6.83% (fold the buying costs into the denominator, as in the main example, and it eases down a little further). Cheaper properties often flash higher gross yields, but they can carry more empty months and more hands-on management, and it's the net figure that quietly reveals that.

Prestige property with strong capital growth

A pricey home in a sought-after area might yield only 3% gross while its value climbs year after year. Here the income is the smaller part of the story and capital growth does the heavy lifting, so the yield is read alongside expected price movement rather than on its own.

Comparing across markets

Two properties with identical 5% net yields can diverge sharply once inflation enters. At 2% inflation the real yield is around 3%; at 5% inflation it's close to zero. This is the moment the real layer stops being academic.

Frequent oversights

Quoting gross as if it were net Gross ignores running costs, so treating it as the real return overstates income, sometimes by a third or more.
Forgetting acquisition costs Measuring against the price rather than the total invested flatters the figure. Legal fees, transfer tax and survey costs belong in the denominator.
Assuming the property is never empty Counting twelve months of rent every year inflates the income. A realistic vacancy allowance keeps net yield grounded.
Overlooking inflation A 4% net yield in a high-inflation market can preserve very little buying power. The real layer closes that blind spot.
Confusing yield with total return Yield is income only. Capital growth, or loss, can dwarf it, so it's one input rather than the whole answer.

If you're weighing up a property purchase, a couple of other tools sit naturally alongside the yield view:

ROI calculator to measure total return including capital growth, not just the income piece
compound interest calculator to project how reinvested rental income could build up over the years

Frequently asked questions

What is a good rental yield?

There's no single threshold, because a strong yield in one market would be weak in another. Net rental yields somewhere between 4% and 7% are common across many residential markets, but the figure that counts is whether the net yield comfortably covers financing and running costs with a margin left over. A flashy gross yield can still disappoint once costs and empty months are deducted, which is why the net and real numbers carry more weight than the headline. Comparing a property's net yield against typical returns in its own local market tells you far more than any global rule of thumb.

What is the difference between gross and net rental yield?

Gross rental yield divides annual rent by the property price and ignores costs, which makes it a fast screening number. Net rental yield first subtracts running costs such as management, maintenance, insurance and a vacancy allowance, then divides by the total invested rather than the price alone. The net figure is consistently lower and much closer to what an investor actually keeps. In the worked example above, a 6.00% gross yield became 4.29% net once costs and purchase fees were included. Treating gross as if it were net is one of the most common errors when comparing properties.

How do you calculate net rental yield?

Start with the annual rent, then subtract every recurring cost: management fees, maintenance, insurance, a vacancy allowance for empty months, and any building or community charges. What's left is net income. Divide that by the total invested, which is the purchase price plus acquisition costs like legal fees and transfer tax, then multiply by 100. In the example, 9,000 of net income on 210,000 invested gives 4.29%. Using total invested rather than the bare price keeps the number honest, because the cost of buying is real capital that has to earn a return alongside the property itself.

Does rental yield include capital growth?

No. Rental yield measures income only, the rent a property produces relative to its value. Capital growth, the change in the property's price over time, is a separate part of total return. A property can show a low yield while its value rises strongly, or a high yield while its price stalls. That's why yield alone never tells the full story. Most investors pair the yield figure with an estimate of likely price movement to judge total return, then weigh the two together rather than leaning on either one in isolation.

Why is real rental yield lower than net yield?

Real rental yield adjusts the net figure for inflation, showing the return in steady buying power rather than headline currency. Because inflation chips away at the value of money over time, the real figure always comes in below the net figure whenever inflation is positive. In the worked example, a 4.29% net yield became roughly 1.25% real once 3% inflation was applied. The higher the inflation rate, the wider that gap. The real layer matters most when comparing properties across markets with very different inflation rates, where identical net yields can hide very different outcomes.

Sources and methodology

The formulas here and in the linked calculator follow standard income-return definitions: income divided by value at the gross and net layers, with an inflation adjustment for the real layer. Every figure in the worked example was checked independently before publication.

For context on how rental returns and house prices vary between countries, two global sources are worth a look:

OECD publishes comparable housing and house-price data across member economies, showing how widely returns differ internationally.
Bank for International Settlements maintains residential property price statistics across many countries, useful for placing any single market in a wider frame.

Putting it together

Rental yield is most useful read in layers. Gross screens, net works, and real tells the truth about buying power. The worked example slid from 6.00% to 4.29% to about 1.25% as costs and inflation were added, a reminder that the advertised number is only ever a starting point. Running gross, net and real side by side through the Buy-to-Let Calculator turns a tempting headline into a return you can genuinely compare from one property, or one country, to the next.