Gross Yield vs Net Yield: What Each Number Tells You
Gross yield vs net yield explained with a worked example, plus how they differ from ROI, cap rate and IRR, and how to test advertised Thai rental yields.
Gross yield is annual rent divided by the property's price, before any cost is taken off.
Net yield deducts the running costs of owning the property first, so it shows what the asset actually earns.
The gap between the two is often large, and it widens abroad, where service charges, management fees, vacancy, currency and two tax systems all sit between the advertised figure and your bank account.
This guide sets out both formulas, a worked example, how yield differs from return on investment (ROI), capitalisation rate and internal rate of return (IRR), and how to test a yield claim for an overseas property, with Thailand as the main case.
TL;DR
- Gross yield = annual rent you get ÷ price × 100. It is a screening number, not a measure of profit.
- Net yield = (annual rent − annual operating costs) ÷ price × 100. It excludes mortgage interest and tax, so it is still not your cash return.
- ROI, cash-on-cash return and IRR bring in your financing, your purchase costs and your exit. Use them to decide, not to shortlist.
- For overseas listings, ask whether the quoted yield is gross, whether it rests on achieved rents or hoped-for ones, and what is left after vacancy, fees, tax and resale costs.
Gross yield: the screening number
Gross rental yield is calculated as annual rental income divided by property value, multiplied by 100. Investopedia describes it as the return before deducting taxes and expenses. Because it ignores every cost, it is useful for one job only: comparing a long list of properties quickly.
Property Geek gives the simplest example: £10,000 of annual rent on a £200,000 property is a 5% gross yield. That tells you the order of magnitude and nothing about what you keep.
Gross yield is the figure on listings, developer brochures and agent presentations. That is not dishonest in itself, but it is the most flattering version of the number, and it is the one a seller has most reason to emphasise.
Net yield: what the property earns
Net rental yield subtracts annual operating expenses from rent before dividing by value. NAB sets out the formula and lists the usual costs: management fees, insurance, repairs, maintenance and service charges. The standard definition does not deduct mortgage interest or tax, which are treated separately in a cash flow analysis.
NatWest's buy-to-let guide frames the same split: gross measures rent against price before expenses, net is what you are left with after them.
Two practical points on definitions:
- Denominator. Some analysts divide by price alone. Others divide by price plus the buyer's transaction costs, which gives a lower and more honest figure. State which one you are using.
- Vacancy. A listing usually assumes twelve months of rent. Net yield should use rent actually collected, so vacancy belongs in the calculation.
A worked example
The figures below are an illustration, not a market quote. Take a condominium priced at £150,000 (converted from baht at the rate on the day), let at £9,000 a year on paper.
| Line | Amount |
|---|---|
| Headline annual rent | £9,000 |
| Vacancy allowance (8%) | −£720 |
| Rent collected | £8,280 |
| Management fee (10% of rent collected) | −£828 |
| Building service charge and sinking fund | −£1,400 |
| Insurance, repairs and furnishings | −£500 |
| Net operating income | £5,552 |
- Gross yield: £9,000 ÷ £150,000 = 6.0%
- Net yield on price: £5,552 ÷ £150,000 = 3.7%
- Net yield including £7,500 of buying costs: £5,552 ÷ £157,500 = 3.5%
No mortgage, income tax or resale cost has been deducted yet. A six per cent headline has become roughly three and a half before the investor has paid a penny of tax. This is why the question "what remains after management, vacancy, fees, tax and resale costs?" is the right one to ask before paying a deposit.
Gross yield vs net yield at a glance
| Gross yield | Net yield | |
|---|---|---|
| Formula | Rent ÷ price | (Rent − operating costs) ÷ price |
| Includes costs | No | Running costs, yes |
| Includes mortgage and tax | No | No |
| Best use | Screening many listings | Judging one property's performance |
| Typical risk | Overstates what you keep | Depends on the cost assumptions |
Yield is not return on investment
Yield measures the asset. ROI measures what you earn on the cash you actually put in. MoneyTools UK explains that ROI brings in financing, acquisition costs such as Stamp Duty Land Tax (SDLT) in the UK, and initial refurbishment. The same page notes that gross yield, net yield and cash-on-cash ROI can give three very different answers for the same property.
That source also recommends using the metrics in stages: gross yield to screen, net yield to judge underlying performance, then cash-on-cash return and monthly pre-tax cash flow to test reality. We agree with that sequence. Yield measures performance. Cash flow measures whether you can hold the asset.
Cash-on-cash return is annual pre-tax cash flow divided by the cash you invested. A leveraged buyer with a 4% net yield and expensive debt can have a cash-on-cash return below zero. An unleveraged buyer with the same property will not.
Rental yield vs cap rate
The capitalisation rate (cap rate) is net operating income divided by current market value. In arithmetic it is close to net yield, and the two are often confused. Wise separates them by use: the cap rate is a valuation tool, mainly in commercial property, while yield describes the income potential of a specific let. Investopedia gives the standard cap rate formula.
In practice: if someone quotes you a "cap rate" on a Bangkok condominium, ask what net operating income they used and whether it is based on achieved rent. A cap rate is only as reliable as the income behind it.
ROI vs IRR
ROI gives a single figure for total gain over total cost. It says nothing about timing. IRR is the annual discount rate at which all your cash flows, including the purchase, yearly net income and the eventual sale proceeds, net to zero. Two deals with the same ROI can have very different IRRs if one pays back earlier.
IRR is the right tool when the exit matters, which it does for a foreign property with a thin resale market. It is also the metric most sensitive to your sale assumptions, so a decision file should show it under a downside case as well as the base case.
Why advertised Thai yields need a reality check
The keyword searches around this topic, such as Thailand rental yield calculation, Bangkok vs Phuket yields and Thailand vs UK yields, share one worry: is the number real? Our advice is to treat any published range as a prompt for questions rather than an input.
We do not quote a single "Thai yield" here because the spread between a central Bangkok condominium, a Phuket villa on a short-stay platform and a resale unit in an ageing building is wider than the spread between countries. Before comparing Thailand with the UK, ask these questions of the claim.
Is the rent achieved or projected?
A developer's "guaranteed return" or an agent's projected rent is not evidence. Ask for signed tenancy agreements and payment records for comparable units in the same building, ideally from the last twelve months.
Is the figure gross, and is it on the full price?
Check whether the percentage is calculated on the discounted price, the list price or the price including furnishing packages. Furniture packs bundled into the price inflate the base while adding little resale value.
What are the recurring building costs?
In a condominium, common-area charges and sinking fund contributions are set by the juristic person (the owners' management body). Ask for the current rate, the last two years' accounts and any planned special levy. These are the most overlooked line in an overseas net yield.
How much of the year is let, and to whom?
Short-stay income in tourist areas is seasonal, and platform income depends on licensing and building rules. Establish whether short lets are permitted in the building before you count on them. Our guide to Thailand property taxes for UK buyers covers how Thai rent is reported and taxed.
What does the currency do?
Rent arrives in baht and your liabilities may be in sterling. A yield that looks level on paper can fall if the baht weakens against the pound over the holding period. Run the downside with the exchange rate moved against you.
What will it cost to leave?
Selling costs, transfer-related charges and the time to find a buyer all reduce the real return and belong in an IRR calculation. For foreign buyers the pool of purchasers can also be restricted by ownership rules, which affects pricing at exit.
The tax layer for UK residents
Net yield stops before tax, but you will not. A UK resident with overseas rental income generally needs to report it to HMRC (His Majesty's Revenue and Customs), and relief for foreign tax paid depends on the treaty and the facts. The expenses you can deduct are those incurred "wholly and exclusively" for the rental business, and the treatment of finance costs is restricted: HMRC's partnership property notes explain that non-corporate partners cannot deduct full mortgage interest and instead receive a basic-rate tax credit. If you borrow to buy, that restriction changes your after-tax cash position materially.
We set out the reporting side in overseas rental tax for UK residents and expats. For your own position, take advice from a UK chartered tax adviser who handles overseas property, because residence status, ownership structure and any double tax treaty all change the answer.
Is a high yield a good yield?
Not by itself. NatWest's guidance makes the point that there is no universal good yield, and that a figure which looks too high can reflect difficulty retaining tenants, deferred maintenance or a deteriorating area. The same applies abroad. A Phuket villa quoting a much higher yield than a Bangkok condominium is usually paying you for something: seasonality, management intensity, structural complexity or a harder exit.
A better comparison between Bangkok, Phuket and the UK is risk-adjusted: net yield, vacancy, volatility of income, currency, tax and liquidity, side by side. The Gulf follows the same logic, and our Dubai rental yield calculator shows how the same gross-to-net bridge is built for that market.
Our view
We review property decisions for buyers, not for sellers, and the same pattern turns up repeatedly. Across the more than 380 property decisions we have reviewed, one in three reviews has identified an issue significant enough to change the deal. Yield claims are rarely the only problem, but they are frequently the lens through which a weak deal looks attractive.
Our practical rules for yield:
- Use gross yield to shortlist and never to decide.
- Rebuild net yield yourself from documents: tenancy agreements, building accounts, management contracts. Do not accept the seller's schedule.
- Add vacancy, your own tax position and exit costs before you call it a return.
- Stress the assumptions that would make the deal fail, then check whether you can still hold the asset if they do.
- Remember that yield assumes you own what you think you own. If the title, permits or developer record are weak, no percentage compensates.
That last point is why our work begins with ownership, developer and permit checks, and only then moves to the numbers. For a formal investment case, the structure we use is described in our guide to an investment memo with RICS-aligned reports.
— Neerraj
Test the numbers before you pay a deposit
If you have shortlisted a specific property and want the yield claim, ownership position and exit tested independently, our residential property due diligence gives you an evidence-based decision file before you commit capital. If you are earlier in the process, our Before Buying review covers the same questions at shortlist stage. Pricing is agreed per engagement.
FAQ’s
What is the difference between gross yield and net yield?
Gross yield divides annual rent by the property price and ignores all costs. Net yield first deducts running costs such as management, insurance, repairs and service charges. Net yield is the more realistic measure, though it still excludes mortgage interest and tax.
What is a good net yield?
There is no single answer. A very high figure can signal problems with tenants, maintenance or location, as NatWest notes. Judge the yield against the risk, the currency, the tax and your ability to exit.
Is rental yield the same as ROI?
No. Yield compares income with the property's value. ROI compares your total gain with the cash you invested, so it includes financing, purchase costs and refurbishment. For a leveraged purchase the two can differ sharply.
How do I calculate rental yield for a Thai property?
Start with achieved annual rent, deduct vacancy, management, building charges, insurance and repairs, then divide by the price plus your buying costs. Convert at a stated exchange rate and rerun it with the baht weaker. Then add your UK tax position and selling costs to see what you would actually keep.
