£268,000 for a UK Home at 5.56% — Rent, Invest the Difference, and Come Out £140,000 Ahead

A £268,000 property with a 10% deposit means a £241,200 mortgage. At the current average two-year fixed rate of 5.56%, that's roughly £1,490 per month over 25 years. But mortgage payments are only the beginning.

Homeowners typically spend 1-2% of their property's value annually on maintenance and repairs. At 1%, that's £2,680 a year — £223 per month. Add buildings insurance at £25 a month and ground rent or service charges for leaseholders, and the true monthly cost of owning that average home sits around £1,738.

The average UK private rent, by contrast, is £1,374 per month. That's a £364 monthly gap — or £4,368 per year — before we even count the deposit and stamp duty the buyer had to hand over on day one.

Our mortgage calculator makes this painfully clear: type in £241,200 at 5.56% and watch the total interest bill hit £206,000 over 25 years. That's money that could have compounded in a stocks and shares ISA instead.

That £364 monthly surplus isn't a luxury for the renter. Invested consistently, it's a wealth engine.

The 10% deposit on a £268,000 home is £26,800. The stamp duty bill for an existing homeowner is £3,400 — calculated under current SDLT rates at 0% on the first £125,000, 2% on the next £125,000, and 5% on the final £18,000. First-time buyers get relief up to £300,000, but that's a one-time benefit that vanishes on your second move.

That £30,200 (deposit plus stamp duty) represents years of saving for most buyers. But here's the opportunity cost: £30,200 invested in a global equity tracker returning 7% nominal per year becomes £116,800 over 25 years. The house, meanwhile, has grown at the ONS-reported average of 1.3% annually — and that's before the Iran-war driven slowdown, with the BBC reporting UK house prices falling as uncertainty dampens demand.

Property bulls will point to leverage: you control a £268,000 asset with just £26,800 down. True. But leverage cuts both ways. A 10% price decline wipes out your entire deposit. Ask anyone who bought in 2007.

The renter's monthly surplus varies over time — rent rises faster than a fixed mortgage payment, and eventually the gap narrows. But even a conservative model tells a striking story.

Assume rent rises at 3.5% annually (the current ONS rental inflation rate) while the mortgage payment stays fixed. For the first five years, the renter's surplus averages £280 a month. After that, rents overtake the mortgage payment and the surplus disappears — but the renter's invested deposit and early surplus continue compounding.

With the initial £30,200 plus five years of surplus investing at 7% nominal returns:

• After 10 years: ~£72,000 in the investment pot
• After 15 years: ~£112,000
• After 25 years: ~£185,000

The homeowner, meanwhile, owns a property worth roughly £360,000 (at 1.3% annual growth from £268,000) with no mortgage. Net position after 25 years of mortgage payments totalling £447,000: a £360,000 asset purchased for £477,200 all-in (mortgage interest + deposit + stamp duty + maintenance).

The renter's investment portfolio: £185,000, plus they never wrote a single cheque for a broken boiler. And that portfolio is fully liquid — unlike housing equity, which requires a sale (and another round of stamp duty) to access.

Yes, the homeowner has a paid-off home at the end. But they spent £477,200 to own an asset worth £360,000. The renter spent less, invested more, and ends up with a liquid portfolio they can access without selling the roof over their head.

When your employer offers you a role in Manchester, the renter gives two months' notice. The homeowner spends six months and £8,000 in estate agent fees, solicitor costs, and another round of stamp duty trying to sell and re-buy.

Career mobility directly translates to earnings growth. ONS data consistently shows that workers who change jobs earn 5-8% more than those who stay put. The homeowner anchored to a property in one location for five years to avoid transaction costs is paying a hidden mobility tax on their career.

And then there's the market timing risk. The Guardian reported that the Iran war has knocked confidence in the UK housing market, with sellers now 'trapped' in properties they can't shift. Average house prices are falling in some regions as geopolitical uncertainty dampens demand. The renter? They relocated to a cheaper area last month and pocketed the savings.

If you're under 40, the average Briton changes jobs every five years. Tying yourself to a property with mortgage rates near 5.56% isn't security. It's a voluntary anchor. Compare that with a portfolio of gilt-edged investments yielding 4.43% with zero maintenance costs and perfect liquidity.

'Rent is dead money' might be the most expensive cliché in British personal finance. Mortgage interest is dead money too. At 5.56%, you'll pay roughly £206,000 in interest over 25 years on a £241,200 mortgage. That's dead money that happens to come with a sense of pride.

Maintenance is dead money. Insurance is dead money. Stamp duty is dead money. The only part of a mortgage payment that isn't 'dead money' is the principal repayment — and in the early years, that's barely a third of your monthly payment.

Housing costs money whether you buy or rent. The question is whether the excess cost of buying delivers enough return to justify locking your wealth into an illiquid, undiversified, leveraged bet on a single postcode.

Consider the diversification angle. A homeowner with £268,000 in property has their entire net worth in one asset class, in one city, on one street. The renter-investor with £185,000 spread across a global equity fund owns slices of 3,000 companies across 40 countries. Which portfolio survives a localised housing crash? Which one survives a pandemic that empties city centres?

The buy-to-let debate showed that professional property investors are already abandoning the sector. Section 24 tax changes, higher stamp duty surcharges, and increased regulation have eroded landlord returns. If professional investors are walking away, why are first-time buyers rushing in?

In April 2026, with the Bank of England base rate at 3.75% and mortgage rates 180 basis points above that, the answer for most people is no. Rent, invest in a stocks and shares ISA, and let compound interest do the heavy lifting.

This article is for informational purposes only and does not constitute financial advice. You should seek independent financial advice before making any investment decisions. Property values can fall as well as rise, and you may get back less than you invest.