Free UK tool · Rent or buy calculator
One of the most important financial decisions you'll make — and the answer isn't always what you expect. Free, private, no sign up — model both scenarios with your own numbers, over your real time horizon. Nothing you enter ever leaves your device.
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The rent vs buy calculator UK above runs both scenarios side-by-side over your chosen time horizon. Here's how to get a useful answer out of it.
The verdict at the top of the result panel tells you which scenario wins, by how much, and the calculator highlights the winner with a green border. If the gap is small (under £20k either way), the financial case is roughly a wash and lifestyle factors should drive the decision.
Rent vs buy — it's more complicated than you think
The "rent is dead money" framing is one of the most persistent myths in UK personal finance. Here's a more honest picture.
Buying isn't just deposit + mortgage. Stamp duty, legal fees, surveys, mortgage product fees, and moving costs come out at purchase. Then comes ongoing maintenance (rule of thumb: 1% of property value per year), buildings insurance, leasehold service charges, ground rent, and major repair reserves. The "real" cost of owning a £300,000 home is roughly £10,000–£15,000/year on top of the mortgage payment — money you don't have to spend if you rent.
Equity markets have historically returned ~7% nominal per year. UK property has averaged ~3–5%. If you put your deposit into a Stocks & Shares ISA instead and invest the monthly difference between mortgage and rent, you're swapping a leveraged 3–5% asset for an unleveraged 7% one. Whether that wins depends on the rent-to-price ratio, leverage (mortgage), and how long you stay. The calculator above models this directly.
Stability, freedom to renovate, security against rent rises and no-fault evictions, the psychological comfort of "owning your home" — these matter, and they aren't fully captured by a financial calculator. UK renters face genuine stress around tenure security that owners don't. If those feel important to you, the financial case can be slightly negative and buying still wins on overall life satisfaction.
Buying typically beats renting from year 5–8 onwards in most UK regions, assuming reasonable property growth and steady rents. Below 5 years, transaction costs dominate and renting almost always wins. Plug your numbers into the calculator with a 3-year, 5-year, 7-year, and 10-year horizon — you'll often see the verdict flip somewhere in that range.
A 10% deposit means a 10× leveraged exposure to property prices. A 5% rise in property values is a 50% return on your deposit; a 5% fall is a 50% loss. Renters don't take that bet. If property values stagnate or fall (as they did in 1990–95, 2008–13, and parts of 2023), renting wins handily. The calculator's growth assumption is doing more work than you might realise — try 0%, then 2%, then 5%, and see how the verdict moves.
UK specifics
UK average house prices have grown ~5% per year nominal over the past 50 years — but that's wildly variable. Some decades the figure was double-digit, others it was negative. The 2023–24 dip reminds anyone modelling property growth that the long-run average isn't a guarantee for any 10-year window. Use 2–3% as a cautious modelling figure unless your area has a track record of stronger appreciation.
Stamp duty bands for 2025/26: 0% on the first £125,000, 2% on £125,001–£250,000, 5% on £250,001–£925,000, 10% on £925,001–£1.5M, 12% above £1.5M. First-time buyers get relief: 0% on the first £300,000, 5% on £300,001–£500,000. Above £500,000, FTB pay standard rates with no relief. SDLT is paid in cash within 14 days of completion — it doesn't get added to the mortgage. The calculator above auto-calculates SDLT based on price and the FTB toggle.
UK rents have risen materially faster than inflation since 2020. The Renters (Reform) Bill aims to abolish Section 21 "no-fault" evictions and create periodic tenancies as the default — improving long-term security for renters. Rental supply remains tight in many cities. Build these dynamics into your assumptions: 3% annual rent increase is a low estimate in many UK markets right now; 4–5% is more realistic in tight rental areas.
In London, rent-to-price ratios are notoriously poor for buyers — high prices relative to rents mean the rent-and-invest path often wins, especially over 5–10 year horizons. In Manchester, Leeds, Birmingham, and most Northern cities, the ratio is more favourable to buying — break-even can come at 4–5 years. Run the calculator with regional numbers from Zoopla or Rightmove for the area you're actually deciding between.
A Lifetime ISA gives a 25% government bonus on contributions up to £4,000/year — useful for buyers under 40 saving for a first home up to £450,000. Help to Buy in England closed to new applications in 2023, but Help to Buy ISAs (a different product, also closed to new accounts since 2019) still exist for those who opened them. Shared ownership lets you buy a 25–75% share and rent the rest, lowering the deposit and mortgage size needed — useful in pricier areas.
FAQ
The questions people most often type into Google about UK rent vs buy.
It depends on three things: how long you'll stay (buying needs ~5+ years to recoup transaction costs), the local rent-to-price ratio (London skews toward renting; many Northern cities skew toward buying), and what you'd do with the money you don't spend on a deposit.
The calculator above models both paths over your time horizon — including stamp duty, fees, maintenance, property growth, and the investment returns you'd earn renting and investing the difference.
It runs two parallel simulations over your time horizon. The buying side amortises the mortgage month-by-month and grows the property's value at your assumed rate, then nets out remaining loan balance to give equity.
The renting side invests the deposit upfront, then each month invests the difference between mortgage and rent, compounding at your assumed return rate. The "winner" is whichever leaves you with more net wealth at the end.
If you'll move within 5 years, buying rarely beats renting once you account for stamp duty, legal fees, maintenance, and selling costs. From 7+ years onward, buying typically pulls ahead in most UK regions assuming reasonable property growth.
The non-financial answers also matter — stability, freedom to renovate, security against rent rises and evictions. Those are real value, just hard to quantify.
No — that framing is wrong. Renting buys you flexibility, no maintenance liability, and frees up capital that would otherwise be locked in property. The interest portion of mortgage payments, stamp duty, fees, and ownership costs are all "thrown away" too — they're just less visible.
The right comparison isn't "rent paid" vs "mortgage paid"; it's "net wealth in 10 years if I rent and invest the difference" vs "net wealth in 10 years if I buy". The calculator above runs that comparison.
Most UK lenders want at least 5% deposit, and you'll get materially better rates at 10%, 15%, 20%, or 25%. On a £300,000 home: 5% = £15,000 (95% LTV, expensive rate); 10% = £30,000 (typical first-time-buyer level); 25% = £75,000 (strong rate, much more lender choice).
You also need cash for stamp duty, legal fees (£1,500–£3,000), and a survey (£400–£1,500) — paid in cash, not added to the loan.
London has a notoriously bad rent-to-price ratio for buyers — high prices relative to rents mean rent-and-invest often wins, especially over shorter horizons.
Manchester, Leeds, Birmingham and most Northern cities have more favourable ratios where buying typically beats renting from year 5 onwards. The calculator makes this concrete: London numbers (£500k, £2,200/mo, 10yr) versus Manchester (£250k, £1,200/mo) flips the verdict.
No. It's a modelling tool — the result depends entirely on the assumptions you enter. Reality differs from any model.
Use it to stress-test scenarios, not as a binding recommendation. For a major decision like this, speak to a regulated UK financial adviser or mortgage broker.
No. UK average house prices fell in real terms during 1990–95, again from 2008–13, and dipped slightly in 2023.
Long-run nominal growth has been ~3–5%/year, but that masks volatile decades. Don't model 5–7% as risk-free — try the calculator at 0% and 2% growth too. If buying only wins at 4%+ growth, you're betting on the housing market more than you might realise.
The full picture
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