How to Calculate Rental Yield UK: Gross vs Net Explained
2026-05-11
Rental yield is the number that separates a property deal from a property gamble. It tells you what percentage of the purchase price comes back to you as rent each year. Get it right and you can compare any two properties anywhere in the country on a level playing field. Get it wrong — or worse, use the wrong version of it — and you'll convince yourself that a money pit is a goldmine.
The problem is that most investors only calculate gross yield. Gross yield is easy, it looks impressive on paper, and it's the number that estate agents and property sourcers put in their marketing. It's also dangerously incomplete.
This guide covers both gross and net yield, shows you exactly how to calculate each one, explains why the gap between them is where deals live or die, and gives you the benchmarks that actually matter in the UK market right now.
What Is Rental Yield?
Rental yield is the annual rental income from a property expressed as a percentage of its value. It's the property equivalent of a dividend yield on a stock — a measure of income return on the money tied up in the asset.
There are two versions, and they tell you very different things.
Gross Yield: The Headline Number
Gross yield is the simplest calculation in property investing:
Gross Yield = (Annual Rent / Property Price) x 100
A property that costs £200,000 and rents for £1,000 a month produces £12,000 a year in rent. Gross yield: 6%.
That's it. No adjustment for costs, no deduction for voids, no consideration of mortgage payments. Just rent divided by price.
When Gross Yield Is Useful
Gross yield is a screening tool. It lets you instantly compare properties, postcodes, and regions without getting bogged down in the detail. If you're scanning Rightmove for potential deals, gross yield is your first filter.
As a rough rule for the UK market in 2026:
:::stats 6%+ | Strong Gross Yield (North/Midlands) 5-6% | Acceptable (Most of England) 4-5% | Marginal (South East / Commuter Belt) 3-4% | Capital Growth Play (London / Prime) :::
If a property doesn't clear your gross yield threshold, there's no point running the detailed numbers. The costs will only make it worse.
When Gross Yield Misleads
Gross yield tells you nothing about profitability. A property with an 8% gross yield and enormous maintenance costs can lose you money every month. A property with a 5.5% gross yield and minimal costs can cashflow nicely.
Gross yield also ignores the purchase costs. Stamp duty, legal fees, and survey costs are real money that comes out of your pocket. A £200,000 property doesn't cost £200,000 to buy — it costs closer to £215,000 once you add SDLT, solicitors, and survey fees. Gross yield pretends those costs don't exist.
[!warning] Estate agents always quote gross yield When an agent tells you a property "yields 7%," they mean gross. They haven't deducted management fees, maintenance, insurance, voids, or the stamp duty surcharge you'll pay on day one. Always ask: gross or net?
Net Yield: The Number That Actually Matters
Net yield strips out the operating costs to show you what the property actually returns:
Net Yield = ((Annual Rent - Annual Costs) / Total Investment) x 100
The "total investment" in the denominator should include the purchase price plus all acquisition costs (SDLT, legal fees, survey, broker fees). The "annual costs" in the numerator should include every recurring expense.
What Counts as a Cost
Here's what should come off your gross rent before calculating net yield:
| Cost | Typical Range | Notes |
|---|---|---|
| Letting agent fees | 8-12% of rent | Full management. Less if tenant-find only |
| Maintenance allowance | 10% of rent | Budget this even if nothing breaks this year |
| Insurance | £200-£400/year | Buildings + landlord liability |
| Void allowance | 4-8% of rent | 2-4 weeks empty per year |
| Ground rent / service charge | £0-£2,000+/year | Leasehold only — can be significant |
| Gas safety / electrical checks | £100-£200/year | Legal requirement, annual |
| Accountancy | £150-£300/year | Per property, roughly |
What you should NOT include in net yield: mortgage payments. Net yield measures the return on the asset itself, not the return on your equity after financing. Mortgage payments are a financing decision, not a property characteristic. Two investors buying the same property with different LTVs would get different "net yields" if you included the mortgage, which defeats the purpose.
Worked Example
Take that £200,000 property renting for £1,000/month:
| Item | Amount |
|---|---|
| Annual rent | £12,000 |
| Letting agent (10%) | -£1,200 |
| Maintenance (10%) | -£1,200 |
| Insurance | -£300 |
| Void allowance (1 month) | -£1,000 |
| Gas/electrical checks | -£150 |
| Net annual income | £8,150 |
Total investment: £200,000 purchase + £7,500 SDLT (additional property) + £1,500 legal + £500 survey = £209,500
Net yield = £8,150 / £209,500 = 3.89%
That 6% gross yield just became 3.89% net. The gap — over 2 full percentage points — is where the reality of property investing lives.
:::tool deal-analyser Run Your Own Yield Calculation :::
The Gap Between Gross and Net
The difference between gross and net yield is typically 1.5 to 3 percentage points for a standard buy-to-let. If the gap is larger than 3 points, something is eating your returns — high service charges, expensive management, or a void problem.
If the gap is smaller than 1.5 points, you're probably not budgeting for enough costs. Either your maintenance allowance is too low or you've forgotten something.
| Gross Yield | Typical Net Yield | Verdict |
|---|---|---|
| 8%+ | 5-6% | Strong cashflow territory |
| 6-7% | 3.5-4.5% | Solid — works for most investors |
| 5-6% | 2.5-3.5% | Tight — needs low mortgage rate |
| 4-5% | 1.5-2.5% | Capital growth play only |
| Below 4% | Below 1.5% | Hard to justify unless appreciation is guaranteed |
What About Cash-on-Cash Return?
Yield measures the return on the total property value. But most investors don't pay cash — they use a mortgage. Cash-on-cash return measures the return on the actual cash you put in (deposit + acquisition costs).
This is arguably more useful than yield for leveraged investors, because it tells you how hard your own money is working. We cover this in detail in Cash-on-Cash Return Explained.
Common Yield Mistakes
Using asking rent, not achieved rent. The rent an agent suggests and the rent a tenant actually pays are often different, especially in a softening market. Use comparable evidence from recent lets in the same postcode.
Forgetting SDLT in the denominator. On a £200,000 additional property, SDLT is £7,500. That's real capital deployed. Ignoring it inflates your yield by roughly 0.15 points.
Zero void allowance. Every property will sit empty at some point. Budgeting nothing for voids is wishful thinking, not analysis.
Mixing up yield and ROI. Yield is an annual income measure. ROI (return on investment) includes capital growth over the holding period. A property can have a low yield but a high ROI if it appreciates significantly. They're different metrics for different questions.
Self-managing and claiming zero management cost. Your time has value. If you're spending 5 hours a month managing a property, that's a cost — you've just chosen to pay it in time instead of money. Budget the management fee whether you pay it to an agent or yourself.
UK Yield Benchmarks 2026
Regional yields vary significantly. Here's where things stand:
| Region | Avg Gross Yield | Notes |
|---|---|---|
| North East | 7.5-9% | Highest yields, lowest capital growth |
| North West | 6.5-8% | Manchester, Liverpool strong rental demand |
| Yorkshire | 6-7.5% | Leeds, Sheffield, Hull all solid |
| East Midlands | 5.5-7% | Nottingham stands out for HMO yield |
| West Midlands | 5.5-6.5% | Birmingham regeneration areas improving |
| South West | 4.5-5.5% | Bristol premium, rest more affordable |
| South East | 4-5% | Expensive entry, moderate yield |
| London | 3.5-4.5% | Zone 4+ better than zones 1-3 |
For live rental data and yield comparisons, the Rental Market Analysis tool pulls current figures by area.
Using Yield to Make Decisions
Yield on its own doesn't tell you whether to buy a property. It's one input alongside mortgage affordability, cashflow after debt service, stress testing at higher rates, and your view on capital growth.
The Deal Analyser runs all of these in one place — yield, ROI, monthly cashflow, and stress tests at +1%, +2%, and +3% above your current mortgage rate. If a deal survives the stress test and still yields above your threshold, it's worth progressing. If it doesn't, walk away.
:::tool deal-analyser Analyse Any Deal :::
For long-term portfolio modelling, the Cashflow Projection tool shows how your yields and cashflow evolve over 10, 15, or 25 years under different rate and growth scenarios.
Summary
- Gross yield = annual rent / property price. Use it to screen and compare.
- Net yield = (annual rent - costs) / total investment. Use it to assess real returns.
- The gap between gross and net is typically 1.5-3 percentage points.
- A 6% gross yield is decent. A 6% net yield is excellent.
- Always include SDLT and acquisition costs in your total investment figure.
- Never rely on gross yield alone to make a buying decision.
The investors who build wealth in property are the ones who calculate net yield honestly, budget for the costs that actually exist, and walk away from deals that don't work. The ones who lose money are the ones who believed the gross yield number on the listing.
Calculations in this guide are for illustrative purposes and should not be treated as financial advice. Always seek professional advice before making investment decisions.