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A trio of smartly dressed people with one person holding a key and another holding a model house, with two potted plants either side of the trio. SAM Conveyancing explains the Help to Buy ISA scheme, how it works, and how to claim the bonus

Help to Buy ISA

Last Updated: 30/09/2025
1,049
3 min read

The Help to Buy (HTB) ISA scheme is closed to new savers, but if you have an existing account, you can still get a Government bonus towards your first home. This guide explains the rules for claiming your bonus and how to use savings correctly as part of your home purchase.



How your Help to Buy ISA works

  • You can pay in a maximum of £200 per month, though you could have opened your ISA with a one-off £1,200 deposit.
  • The Government will give you a 25% bonus on the amount you have saved.
  • The minimum bonus you can get is £400 (on savings of £1,600), and the maximum bonus is £3,000 (on savings of £12,000).
  • The bonus can only be used if you are buying a home. You can withdraw your savings for another purpose, but you will not get the bonus.
  • The ISA can be used to buy a property worth up to £250,000 outside of London, or up to £450,000 in London.
  • You must have opened your account by 30th November 2019, and you must claim your bonus by 1st December 2030.


Full Help to Buy Process with SAM

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  • Remortgaging or selling advice.
  • Fixed-fee, no-obligation quotes.
  • On 99% of mortgage lender panels.
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  • Solving all your property challenges.
A couple sat down with their SAM Conveyancing consultant discussing their Help to Buy position.





How to claim your Help to Buy ISA bonus

The process of claiming your bonus is handled by your conveyancing solicitor. The most important rule to remember is that the bonus cannot be used for your exchange deposit. It is only paid at completion.

To claim your bonus, you must:

  • Get a solicitor to handle your conveyancing.
  • Once your solicitor is instructed, you will be asked to close your HTB ISA.
  • Provide your solicitor with a closing letter from your bank or building society.
  • Your solicitor will then apply to the Government for the bonus.
  • The bonus money will be sent to your solicitor, and they will apply it to the final purchase price of your home on the day of completion.


Do you earn interest on your Help to Buy ISA?

You earn interest on the money you save in your HTB ISA, just like a standard cash ISA. The interest rate is set by your provider.

However, you will not earn interest on the Government bonus because the bonus is not paid into your account until the completion of your property purchase.

Your final bonus is calculated on both the money you have saved and the interest you have earned.



Help to Buy ISA vs Lifetime ISA

While the HTB ISA is no longer available to new savers, it is often compared to the Lifetime ISA. Understanding the differences is important, especially if you had the choice to open one or the other. Here’s a quick comparison:

Feature
Help to Buy ISA
Lifetime ISA
Feature

Status

Help to Buy ISA

CLOSED to new savers.

Lifetime ISA

OPEN to new savers (under 40).

Feature

Annual Contribution

Help to Buy ISA

£2,400 (max).

Lifetime ISA

£4,000 (max).

Feature

Bonus Limit

Help to Buy ISA

£3,000 (lifetime).

Lifetime ISA

£1,000 per year (no lifetime limit).

Feature

Bonus Use

Help to Buy ISA

Can only be used at completion.

Lifetime ISA

Can be used for the exchange deposit.

Feature

Property Value

Help to Buy ISA

Up to £250k / £450k (London).

Lifetime ISA

Up to £450k (anywhere in the UK).

Feature

Penalty

Help to Buy ISA

Lose the bonus on withdrawal.

Lifetime ISA

25% penalty on the whole amount.


First-Time Buyer Conveyancing Specialists

  • Every stage is explained in your language. No nonsense.
  • We hold your hand from start to finish.
  • Fixed Fee Conveyancing quotes.
  • No Sale No Fee protections (except Auction and Right to Buy).
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Frequently Asked Questions
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Andrew Boast of Sam Conveyancing
Written by:

Andrew started his career in 2000 working within conveyancing solicitor firms and grew hands-on knowledge of a wide variety of conveyancing challenges and solutions. After helping in excess of 50,000 clients in his career, he uses all this experience within his article writing for SAM, mainstream media and his self published book How to Buy a House Without Killing Anyone.

Caragh Bailey, Digital Marketing Manager
Reviewed by:

Caragh is an excellent writer and copy editor of books, news articles and editorials. She has written extensively for SAM for a variety of conveyancing, survey, property law and mortgage-related articles.


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