How to Calculate Rental Yield in 2026: The Complete UK Guide
Rental yield is the single most important number in buy-to-let investing. Get it wrong and you're subsidising your tenant's lifestyle. Here's how to calculate it properly — with real examples from UK cities in 2026.
What is rental yield — and why does it matter?
Rental yield measures how much rental income a property generates relative to its price. It's expressed as a percentage — the higher the number, the more income you get per pound invested.
Think of it like the interest rate on a savings account. A property costing £100,000 that generates £7,000/year in rent has a 7% yield. That same £100,000 in a savings account at 4.5% would earn you £4,500. The property beats it — before costs.
The catch? Properties have running costs that savings accounts don't. That's why understanding the difference between gross and net yield is critical.
How to calculate gross rental yield
Gross yield is the simplest calculation. It ignores all costs and just measures raw income against the purchase price. It's useful for quick comparisons between properties.
Take your monthly rent, multiply by 12 to get annual rent, then divide by the property purchase price. Multiply by 100 to get a percentage.
| City | Price | Yield | Verdict |
|---|---|---|---|
Sunderland North East | £98,500 | 8.83% | Excellent |
Liverpool North West | £155,000 | 6.93% | Solid |
Manchester North West | £215,000 | 6.11% | Average |
Edinburgh Scotland | £260,000 | 5.01% | Below avg |
Worked example: Sunderland
Quick shortcut: You can also estimate yield by dividing the monthly rent by the property price, then multiplying by 1,200. For Sunderland: £725 ÷ £98,500 × 1,200 = 8.83%.
Net yield: the number that actually matters
Gross yield is useful for quick screening, but net yield is what determines whether you actually make money. Net yield strips out all the costs of owning and running a rental property.
Subtract all annual running costs from your rental income before dividing by the property price. This gives you the real return on your investment.
Reality check: Sunderland's impressive 8.83% gross yield becomes 3.52% net after a 75% LTV mortgage and standard costs. That's still positive cash flow of about £289/month — but dramatically different from the headline number. Always run the net calculation before committing.
What's a “good” rental yield in 2026?
Typical of London, South East, Edinburgh. You're relying on capital growth — cash flow will be tight or negative with a mortgage.
UK average territory. Works with favourable mortgage rates and decent LTV. Manchester, Leeds, and Sheffield sit here.
Strong cash flow markets — Sunderland, Burnley, Bradford. Higher yields often come with higher management intensity.
The critical threshold in 2026 is whether your gross yield can survive the current mortgage rate environment. With average BTL rates at 5.45%, you typically need at least 7.5% gross to maintain positive cash flow after all costs on a 75% LTV mortgage.
If you're buying with cash or a larger deposit (lower LTV), the maths changes significantly — even a 5% gross yield delivers decent returns without mortgage drag.
How mortgage rates change your yield
Mortgage interest is usually the biggest cost for leveraged BTL investors. Here's how different rates affect a £155,000 Liverpool property (£895/mo rent, 6.93% gross yield, 75% LTV interest-only mortgage).
| Rate | Net Yield | Cash Flow |
|---|---|---|
| 4.50% | 5.46% | +£150/mo |
| 5.00% | 5.16% | +£126/mo |
| 5.45% | 4.91% | +£105/mo |
| 6.00% | 4.58% | +£78/mo |
| 6.50% | 4.27% | +£53/mo |
Highlighted row shows current average BTL rate (5.45%). Cash flow assumes 10% management, £500 maintenance, £250 insurance, 2-week void.
2026 outlook: Base rate is expected to drop to ~3.75% by year-end, which should bring BTL rates down to the 4.5–5.0% range. If that happens, Liverpool's net yield improves to 5.2–5.5% — making it one of the best risk-adjusted BTL markets in the country.
5 yield calculation mistakes that cost landlords thousands
Using asking rents, not achieved rents
Impact: Overestimates yield by 5–15%
Fix: Use Zoopla or Rightmove rental data for actually let properties. Asking rents are aspirational.
Ignoring void periods
Impact: Overestimates income by £500–1,500/yr
Fix: Budget 4–8% of annual rent for voids (1–4 weeks per year depending on area and property type).
Forgetting stamp duty in purchase costs
Impact: Under-reports true cost of entry by £3,000–15,000+
Fix: Include SDLT (additional property surcharge is 5% from Oct 2024), legal fees, and refurbishment in your total investment figure.
Comparing gross yields across different risk profiles
Impact: Misleading — 8% in a high-void area ≠ 6% in a low-void area
Fix: Always calculate net yield after all costs. A lower gross yield with better fundamentals often nets more.
Not accounting for mortgage rate changes
Impact: Cash flow can flip from positive to negative on refinance
Fix: Stress-test your yield at 7%+ mortgage rates. If it still works, you're resilient.
Yield calculator cheat sheet
Cash buyer
Mortgaged buyer (75% LTV)
The golden rule: stress-test at 7%+ mortgage rates. If your investment still works at a rate 2pp above your current deal, you're resilient to rate shocks. If it breaks at 6%, you're running a leveraged bet on rates staying low.
We've already run the numbers — for 20 UK cities
Our UK Property Investment Hotspots 2026 report includes gross yields, Yieldiq Scores (1–10), price-to-rent ratios, risk ratings, and investment strategies for every city — so you don't have to build the spreadsheet yourself.
21 pages of analysis. Instant PDF download. One-time purchase.