The 'dead money' myth: buying loses £718 more in year one

Somebody, a parent, a colleague, an estate agent, has told you that rent is dead money and a mortgage isn't. It's one of the most repeated lines in British property conversation, and it's doing a lot of work to make anyone still renting feel like they are getting it wrong.

Run the actual numbers on a typical first-time buyer purchase this month, and the cliché doesn't hold up. In year one of owning, more money disappears to interest and buying costs than a renter loses to a full year's rent, not less.

What 'dead money' is supposed to mean

The claim is simple: rent pays your landlord's mortgage and buys you nothing, while your own mortgage payment builds an asset you will eventually own outright. It's a fixture on MoneySavingExpert's forums and Reddit's r/HousingUK, wheeled out whenever someone questions whether buying right now actually makes sense for them.

The claim isn't wrong about the destination. Twenty-five years from now, the mortgage really has bought you a house and the rent really has not. But the destination isn't the decision most first-time buyers are actually weighing up. The decision is whether buying is the better move this year, on a deposit you have only just scraped together, at a mortgage rate that's a good deal higher than it was three years ago.

So if you have ever felt guilty about your monthly rent while assuming a mortgage payment would not have that problem, it's worth checking what your own mortgage payment would actually look like before you believe it.

How much of your mortgage payment actually buys you anything

Take the UK's average sale price, £275,465 (Nationwide House Price Index, August 2026), financed with a typical 10% deposit of £27,546. That leaves a loan of £247,919 over 25 years. At the current whole-market average two-year fixed rate of 5.77% (Moneyfacts, week to 16 September 2026, via HomeOwners Alliance), the standard UK repayment mortgage formula puts the monthly payment at £1,562.67.

In month one, £1,190.06 of that £1,562.67 is pure interest, about 76p in every £1. By the end of year one, £14,185 has gone on interest and just £4,567 has actually reduced the loan (Property Pundit UK calculation). The interest share does fall every year, but slowly: it's still 69.3% in year five, on the same deal.

That's not a quirk of a bad rate or a small deposit. It's how a 25-year repayment mortgage works in its early years, whatever rate you get, because interest is always charged on the full outstanding balance and the balance barely moves at the start. Even at the best-buy 2-year fixed rate of 4.69% (85% LTV, Danske Bank, £1,124 fee, HomeOwners Alliance, checked 28 September 2026), which most first-time buyers with a 10% deposit won't qualify for anyway, month one is still 69% interest.

So if you have been picturing your mortgage payment as entirely an investment in your own asset, more than three-quarters of it in year one is, in the strictest sense, exactly the kind of money you were told renting throws away.

Add the fees, and the gap nearly disappears

Interest isn't the only cost that buys you nothing. A typical first-time buyer also pays average conveyancing fees of £1,509, a Level 2 HomeBuyer Report costing roughly £400 to £1,000, and a mortgage arrangement fee (£1,124 on the current best-buy two-year fix) before they get the keys, around £3,333 in total (HomeOwners Alliance, 2026). At £275,465, this buyer owes no Stamp Duty at all, since the price sits under the £300,000 first-time buyer nil-rate threshold, so that particular cost doesn't apply here. It would on a more expensive purchase.

Add the £14,185 of year-one interest to the £3,333 of buying costs, and the true 'dead money' bill for the first year of owning comes to £17,518. Average UK rent is currently £1,400 a month, £16,800 a year (ONS Price Index of Private Rents, published 16 September 2026, reference August 2026). Buying costs £718 more than renting in year one, not less, before you have built a single pound of genuine equity beyond the capital already repaid.

So the first year of a mortgage isn't the guilt-free alternative to renting it's sold as; on this national scenario, buying is the more expensive way to lose money in year one, not the cheaper one.

What changes if you move again in a couple of years

It gets worse for the 'dead money' argument if you might sell within a few years, which a first home very often isn't the last home. Selling adds an estate agent fee (typically 1% to 2% plus VAT, so about 1.8% here) plus a fresh conveyancing bill, roughly £6,458 on this property. Over three years, with rent rising at its current national pace of 3.8% a year (ONS, September 2026), cumulative rent comes to about £52,339. Cumulative owning costs, interest plus buying plus selling fees, come to about £51,520. The gap barely moves; buying edges ahead by around £800 over three years, once you have already paid to sell.

That £800 doesn't include the roughly £14,528 of capital you would have repaid by then, which is real, recoverable equity rather than dead money. But it does mean the pure cash case for buying over renting, ignoring equity, is much weaker over a short hold than the 'dead money' line implies. And that's before checking whether your own mortgage in principle is even quoting a rate that's still on the table by the time you find somewhere to buy.

So if there's a real chance you could be moving again within two or three years, whether for work, a relationship, or simply not being sure the area is right, the sums don't support rushing to buy purely to stop 'wasting' money on rent.

Why buying still usually wins, if you stay long enough

None of this means renting is the smarter long-term move. It means the 'dead money' framing skips the part where buying only pays off once you have stayed long enough to earn it back. The capital share of your payment grows every year you hold the mortgage, from 24% in year one to close to 31% by year five on this deal, and it keeps accelerating after that. Meanwhile a fixed-rate mortgage payment doesn't move for the length of your deal, while rent keeps climbing: RICS's August 2026 survey found tenant demand rising (net balance +18%) while landlord instructions kept falling (net balance -14%), a combination that tends to push rents higher still (RICS UK Residential Market Survey, published 15 September 2026).

Even a modest deposit changes the shape of this, not just the total. A 5% deposit mortgage means a bigger loan and a higher interest share for longer, so the year-one 'dead money' gap against renting would be wider still, not narrower, on a smaller deposit.

So the real case for buying was never that none of your money is 'dead' the moment you get a mortgage; it's that the portion which isn't dead grows every year you stay, and it only starts paying off once you have stayed long enough to earn it back.

What this means for you

If you can see yourself in the same home in five years or more, the maths points toward buying now rather than waiting: your payment stays fixed for your deal's term while rent keeps rising, and the capital you repay each year only grows as a share of the bill. If you're still unsure where you want to be in two or three years, don't let the 'dead money' guilt trip force the decision before you're ready. Renting while you're genuinely unsure isn't the mistake it's made out to be; on these numbers, it can be the cheaper option once buying and selling costs are counted in. Most people who run their own numbers before deciding end up choosing based on how long they can commit to staying put, not on which side of the rent-versus-buy argument sounds more responsible. Try it against your own figures with our rent versus buy calculator before you decide either way.