Is Buy-to-Let Still Worth It in 2026? The Real Numbers
Wondering if buy to let is worth it in 2026? We walk through gross vs net rental yield, the real running costs, Section…
This rental yield calculator works out the gross and net return on a UK buy-to-let property, so you can see what your rent actually earns against the price you pay. Enter the purchase price (or current value) and the rent, add your running costs, and you get both figures in seconds.
It is built for landlords, first-time investors and anyone comparing two properties before making an offer. Yield is the single number that lets you weigh a cheap flat in one town against a pricier house in another on a like-for-like basis.
Interest-only BTL assumed for the mortgage cost. Buying costs (stamp duty, legals, refurb) are added to cash invested for the cash-on-cash figure.
Gross rental yield
%
rent on a property
%
Net yield
%
Cash-on-cash
Estimate only. Yields ignore tax, capital growth and selling costs.
Net income reinvested-free, growing with assumed annual rent increases over 10 years.
| Scenario | Gross | Net | Cash/cash | Net/yr | |
|---|---|---|---|---|---|
Gross rental yield = annual rent ÷ property price × 100. A £200,000 property renting at £1,000 a month yields 12,000 ÷ 200,000 = 6.0% gross. Most UK landlords target 5 to 8% gross; below 4.5% the sums rarely survive costs and tax.
Pop your figures into the calculator at the top of the page and it returns gross and net yield instantly. The sections below show exactly how those numbers are reached, with worked examples you can copy, plus the costs and tax that quietly shrink your real return.
Rental yield expresses your annual rent as a percentage of what the property is worth. There are two versions, and the gap between them is where most beginner mistakes hide.
Gross yield ignores costs. The formula is simple:
Gross yield = (annual rent ÷ property value) × 100
So a property worth £200,000 let at £1,000 a month produces £12,000 a year. That is (12,000 ÷ 200,000) × 100 = 6% gross yield. This gross yield calculator figure is useful for a quick screen, but it overstates what you keep.
Net yield strips out the running costs before doing the sum:
Net yield = ((annual rent − annual costs) ÷ property value) × 100
The costs you should include are letting agent fees, landlord insurance, ground rent and service charges on a leasehold flat, maintenance and repairs, void periods when the property sits empty, gas safety and electrical checks, and any membership or licensing fees. Note that net yield as commonly defined does not deduct your mortgage interest or income tax. If you want the figure after finance and tax, that is your cash-on-cash return or post-tax profit, which is a different calculation covered below.
Use the value you actually paid when you are judging a purchase. Once you have owned the property a few years, switch to the current market value, because yield measured against today's price tells you whether your money is still working hard where it sits or whether selling and redeploying would do better.
Priya is buying a two-bed terrace in a northern town for £180,000 and expects £875 a month in rent. Her annual rent is £875 × 12 = £10,500.
Gross yield: (10,500 ÷ 180,000) × 100 = 5.83%.
Now the costs. She budgets letting agent fees at 10% of rent (£1,050), insurance £220, repairs and maintenance £600, a gas safety certificate and minor compliance £120, and one month's void allowance (£875). Total annual costs = £2,865.
Net rent = £10,500 − £2,865 = £7,635.
Net yield: (7,635 ÷ 180,000) × 100 = 4.24%.
The headline 5.83% drops to 4.24% once real costs bite. That 1.6-point gap is the difference between a property that looks fine on paper and one that pays you properly.
Yield earns its keep when you are choosing between options. Say you are weighing a city flat at £250,000 renting for £1,150 a month against a market-town flat at £145,000 renting for £750 a month.
The cheaper flat wins on yield even though it earns less rent in pounds, because you tie up far less capital to get it. That is the whole point of the percentage: it normalises return per pound invested. The city flat might still win overall if you expect stronger capital growth, but on income alone the town flat is ahead. Run both through a buy-to-let profit calculator to layer in mortgage costs and see which leaves more in your pocket each month.
Yield measures income against price. It says nothing about your mortgage or your tax bill, and both can be substantial. Since the phasing in of Section 24, individual landlords can no longer deduct mortgage interest as a normal expense; instead you get a 20% tax credit on the interest. For a higher-rate taxpayer that change alone can turn an apparently healthy yield into a thin real return.
Rental profit is taxed as income at your usual rates. For 2026/27 in England, Wales and Northern Ireland that is 20% basic, 40% higher and 45% additional rate, with the higher rate starting once total income passes £50,270. Scotland sets its own bands and rates, so a Scottish landlord on the same profit can pay a different amount. Work your actual bill out with the rental income tax calculator, and if you borrow to buy, the buy-to-let mortgage calculator shows how interest-only versus repayment changes your monthly cash flow.
HMRC's own guidance on what you can and cannot claim against rental income is worth reading before your first Self Assessment return.
Yield is calculated on the purchase price, but the price is not all you pay on day one. Buying an additional property triggers a surcharge on top of the normal land tax, and the rules differ by nation:
That upfront tax does not appear in a yield figure, but it raises your true cost of entry and lengthens the time before you are genuinely in profit. Estimate it with the second-home stamp duty calculator or the main stamp duty calculator before you commit.
These estimates are for guidance only and are not personal tax or financial advice. For decisions about a specific purchase, speak to a qualified accountant or independent mortgage adviser, and see the impartial guidance on buy-to-let at MoneyHelper.
Build the full picture with the buy-to-let mortgage calculator for your finance costs, the rental income tax calculator for your annual bill, and the landlord rental income organiser to keep your figures Self Assessment ready.
| Monthly rent | Annual rent | Gross yield |
|---|---|---|
| £800/month | £9,600 | 4.8% |
| £1,000/month | £12,000 | 6.0% |
| £1,200/month | £14,400 | 7.2% |
Complete the picture with the buy-to-let profit calculator, Section 24 tax impact and rental income tax. Landlord obligations: GOV.UK renting out property.
For landlords and prospective landlords assessing whether a property actually works as an investment. It distinguishes gross yield — annual rent over purchase price, the figure agents quote — from net yield, which deducts the costs of actually running the thing.
The gap between the two is usually much larger than expected. Voids, management fees, insurance, maintenance, safety certificates and service charges routinely take a quarter to a third of gross rent, and a headline 7% yield can become 4% or less before a mortgage payment or any tax is considered.
Wondering if buy to let is worth it in 2026? We walk through gross vs net rental yield, the real running costs, Section…
A plain-English guide to investing in property in the UK. Learn how buy-to-let works, deposits, rental yield, the stamp…
You can normally take 25% of your pension as a tax-free lump sum, capped at £268,275. Here is exactly how the rule works…
If you keep your own books, these are the packages that handle Self Assessment and Making Tax Digital.
The freelancer and contractor favourite, free with some bank accounts.
From £0 with a NatWest, RBS or Mettle account, otherwise about £19/mo
See FreeAgentThe big all-rounder with the deepest MTD track record.
From about £10/mo, frequent 90% off intro offers
See QuickBooksThe scale-up choice once you have staff, stock or VAT.
From about £15/mo
See XeroWe may earn a commission if you sign up through one of these links. It never changes what we calculate, what we recommend, or the order they appear in.