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The Lifetime ISA's 25% Bonus Is Free Money, If You Dodge the Traps

Up to £1,000 a year from the government towards a first home is genuinely one of the best deals in UK personal finance. It also has a penalty that catches people out. Both are worth understanding before you open one.

Pastel-coloured Georgian terraced houses in London

Very few things in personal finance offer an instant, guaranteed 25% return. The Lifetime ISA is one of them: for every £4 a first-time buyer puts in, the government adds £1. Save the full £4,000 in a year and you get a £1,000 bonus on top, free. For the right person, with the right goal, it's close to unbeatable, but it comes wrapped in rules that punish the unwary.

How it works

You can open a Lifetime ISA between the ages of 18 and 39 and pay in up to £4,000 each tax year (this counts within your overall £20,000 ISA allowance). The government adds a 25% bonus on your contributions. You can keep contributing until you're 50. The money, plus its bonus and any growth, can be used for two things without penalty: buying your first home, or retirement from age 60.

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"For every £4 a first-time buyer puts in, the government adds £1. There aren't many guaranteed 25% returns in life."

Who it's brilliant for

The clearest win is a first-time buyer who is confident they'll buy within the rules. Someone saving hard for a deposit turns £4,000 a year into £5,000, every year, before growth. For that specific goal it can beat both a normal ISA and, for a basic-rate taxpayer, even a pension. If you're under 40 and buying your first home, opening one (even with a token amount, to start the clock) is usually a no-brainer.

The traps to dodge

  • The withdrawal penalty. Take money out for anything other than a first home or retirement at 60 and you pay a 25% government charge. Because of how the percentages work, that charge claws back the bonus and a slice of your own money, you can get back less than you put in. This is the trap that catches people.
  • The property price cap. The home you buy must be at or under £450,000. In pricey areas that's a real constraint, buy above it and you can't use the LISA without the penalty.
  • The one-year wait. You must have held the LISA for at least 12 months before using it for a purchase, so don't leave opening it until the last minute.
  • The age window. You have to open it before 40. Miss that and the door closes.

Related

Where a LISA sits in the bigger picture

Employer match, ISA, pension, LISA, the right order depends on your goal and tax band.

ISA or pension first? →

The verdict

Treated as a first-home savings booster by someone who fits the rules, the Lifetime ISA is close to free money and hard to argue against. Treated carelessly, money locked in, plans changed, penalty paid, it can cost you. Understand the four traps above, use it for exactly what it's designed for, and take the 25% the government is offering.

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Written by The Compound Desk
The Compound Desk is Compound Money's editorial team, led by an ACA-qualified chartered accountant with more than a decade in senior commercial finance roles. Everything we publish is checked against the current UK rules. More about Compound.

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