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First-time buyers face price caps that don't line up

ended 28. September 2026

A first-time buyer in England may soon meet three different price ceilings on one purchase, and the two already set do not agree. The Lifetime ISA can go towards a first home without a charge only if it costs £450,000 or less, the same limit it had at launch in April 2017. First-time buyer stamp duty relief runs to £500,000. Your First Home, the new-build scheme expected to pair a 2.5 per cent deposit with a 20 per cent government-backed equity loan, will have a household income cap and local property price caps, set out at the Budget on 28 October.

It is a patchwork of price caps, and the gap between £450,000 and £500,000 is where it bites. A buyer who has paid into a LISA for years and finds a home at £475,000 keeps the stamp duty relief, but can only use the LISA by paying a 25 per cent charge on the money withdrawn, bonus included.

The LISA's replacement, the First Time Buyer ISA, is still only a consultation. It says its cap will be aligned with those on the LISA and the Help to Buy ISA so no account holder loses out, leaves the level to a future fiscal event, and notes that a cap below £450,000 could allow a bigger bonus.

  1. Should the Budget set one price cap across the LISA, its successor and Your First Home, or do different schemes justify different limits?
  2. Which first-time buyers does a £450,000 limit set in 2017 catch today, and is that fair on people who saved in good faith?
  3. Do you have a first-time buyer client whose LISA, deposit or choice of home was shaped by one of these caps? Please give as much colour and detail as possible.

6 responses from the Newspage community

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Jamie ElvinVerified
Director at Strive Mortgages
The £450,000 LISA limit increasingly feels out of date, particularly in London and the South East, where that doesn’t necessarily buy an extravagant first home. The biggest frustration is that someone can diligently save into a LISA for years, then find the home they want is just above the limit. A buyer purchasing at £475,000 could still qualify for first-time buyer stamp duty relief, yet face a penalty for accessing savings specifically intended for their first home. Different schemes can justify different eligibility rules, but having conflicting price caps creates unnecessary complexity and some fairly arbitrary cliff edges. The Budget would be a good opportunity to bring greater consistency to the system and review whether £450,000 still reflects today’s housing market.
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Stephen PerkinsVerified
Norwich Mortgage Broker and Managing Director at Yellow Brick Mortgages
Buying your first home is already complicated enough without government support working like three different vouchers at the same checkout, each with its own spending limit and small print. A lender may assess that someone can afford a £475,000 home, yet other schemes can effectively tell them their budget stops somewhere else.

This isn’t just about expensive properties. The average first-time buyer in London is now paying around £467,000, already above the £450,000 Lifetime ISA cap. Adding further price caps risks creating even more cliff edges that influence what people can buy and where they look. First-time buyers need help turning an affordable budget into a home, not another puzzle to solve.
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Tracey DixonVerified
Buy-to-Let Mortgage Specialist & Owner at Pure Mortgage and Protection
First-time buyers make savings decisions years before they know which home they’ll buy. Keeping the Lifetime ISA property limit at £450,000 since 2017 means some may discover, just as they are ready to purchase, that they cannot use those savings as planned without a withdrawal charge.

The Budget should review the limit and make the rules for the proposed replacement clear well before it launches. Above all, people who have already saved into a LISA need a fair route to use their money for a first home. Moving the goalposts at the point of purchase would undermine confidence in a scheme designed to reward saving.
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Nouran MoustafaVerified
Practice Principal & IFA at Roxton Wealth
The real problem is not simply that £450,000 is too high or too low. It is that one first-time buyer can face several different government definitions of affordability on the same purchase.

A buyer at £475,000 can still qualify for first-time buyer Stamp Duty relief, yet their LISA no longer works for that purchase without a withdrawal charge. That is where policy design starts colliding with real life.

The £450,000 LISA cap has been unchanged since 2017, so it is inevitably catching more buyers in higher-value areas today than when it launched.

The proposed FTB ISA could simplify things because the government says its cap will be aligned with the LISA and Help to Buy ISA. But Your First Home will have separate local caps.

For advisers, the danger is complexity. Buyers should not need a flowchart to work out which government support applies to the same house.
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Tony SanchezVerified
Founder at Bridging Loan Directory
From our perspective at Bridging Loan Directory, the useful test is whether support works when a buyer is ready to complete. Someone purchasing at £475,000 can qualify for first-time buyer stamp duty relief but face a charge to access their LISA savings.

That charge can eat into their own savings. Ignoring growth, £20,000 saved plus £5,000 in bonuses becomes £18,750 after a chargeable withdrawal. That is £1,250 of the buyer’s own money lost.

Different schemes can reasonably have different limits, especially where local prices matter. But the Budget should explain how they work together and protect existing savers through any changes. People saving over several years need rules they can plan around. Reviewing the LISA cap and withdrawal charge should be part of that discussion.
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Dariusz KarpowiczVerified
Director at Albion Financial Advice
A cap frozen since 2017 is no longer a cap on luxury, it is a cap on geography. The average first-time buyer in London now pays around £467,000, so the limit catches ordinary purchases across the South East before anyone has bought anything grand. House prices moved. The rules did not.

Then the maths turns cruel: £20,000 saved plus £5,000 of bonus comes back as £18,750, so you lose £1,250 of your own money for buying at £475,000, a price the stamp duty rules happily allow. Align the limits, index them to actual prices, and stop punishing people who saved exactly as they were told to.