Help to Buy ISA Rules for First Time Buyers: Your Complete Guide

If you’re saving for your first home, you’ve probably heard about the Help to Buy ISA – a government scheme that gives you free money towards your deposit. But with the scheme closing to new savers in 2019, and complex rules around who qualifies and how it works, many first-time buyers find themselves confused about what they can and can’t do.

Whether you already have a Help to Buy ISA or you’re trying to understand if you still qualify for one, this guide breaks down everything you need to know. We’ll cover the key rules, eligibility criteria, and how to make the most of your savings to get that crucial deposit together.

By the end of this article, you’ll understand exactly how the Help to Buy ISA works, what the government bonus means for your house deposit, and how to navigate the rules to maximise your savings.

What is a Help to Buy ISA and Who Can Still Get One?

The Help to Buy ISA was a government savings scheme designed to help first-time buyers save for a deposit. While it closed to new accounts in November 2019, if you opened one before then, you can still pay into it and claim your bonus.

The scheme works like this: for every £200 you save, the government adds £50 when you buy your first home. You can save up to £200 per month and earn a maximum bonus of £3,000 on savings of £12,000.

If you didn’t open a Help to Buy ISA before November 2019, you can’t get one now. However, you might be eligible for a Lifetime ISA instead, which offers similar benefits with a 25% government bonus.

The key thing to remember is that existing Help to Buy ISA holders can continue using their accounts until December 2030 – but only for properties that cost £250,000 or less (£450,000 in London).

Help to Buy ISA Eligibility Rules for First Time Buyers

To qualify for the Help to Buy ISA bonus, you must meet strict first-time buyer criteria. The rules are more specific than you might think, and breaking them could cost you thousands.

You qualify as a first-time buyer if you’ve never owned property anywhere in the world – not just the UK. This includes inherited property, property owned jointly with someone else, or even a small share in a property through schemes like shared ownership.

The property you’re buying must be your main residence, and you must intend to live there. Buy-to-let properties don’t qualify, and neither do second homes or holiday homes.

There’s also a purchase price limit: £250,000 for properties anywhere in England except London, where the limit is £450,000. These limits apply to the total purchase price, not your deposit amount.

If you’re buying with a partner, both of you can use Help to Buy ISAs if you both qualify as first-time buyers. This means you could potentially get £6,000 in government bonuses between you.

Monthly Limits and Contribution Rules

Understanding the contribution limits is crucial for maximising your Help to Buy ISA benefits. The rules are straightforward but inflexible.

You can pay in up to £200 per month after your initial deposit. When you first open the account, you can deposit up to £1,200 in the first month, then £200 every month after that.

These limits are strict – you can’t carry over unused allowances from previous months. If you only pay in £100 one month, you can’t pay in £300 the next month to make up for it.

The minimum you can pay in each month is £1, and all contributions must be in whole pounds – no pence amounts. You can make multiple payments throughout the month as long as they don’t exceed £200 in total.

If you already have other ISAs, your Help to Buy ISA contributions count towards your annual ISA allowance. For the 2026/25 tax year, the total ISA allowance is £20,000, so this rarely becomes an issue with Help to Buy ISA limits.

How the Government Bonus Works

The government bonus is the main attraction of the Help to Buy ISA, but the rules around claiming it can catch people out if they’re not careful.

The bonus rate is 25% of your savings, paid when you complete your house purchase. This means for every £4 you save, the government adds £1. The minimum bonus is £400 (on £1,600 of savings) and the maximum is £3,000 (on £12,000 of savings).

You don’t get the bonus automatically – you need to apply for it through your conveyancer or solicitor when you’re buying your home. They’ll handle the paperwork and the bonus gets paid directly to them to put towards your purchase.

The bonus only gets paid when you complete the purchase, not when you exchange contracts. If your purchase falls through after exchange, you won’t receive the bonus and you can’t apply again for the same property.

Property Price Limits and Regional Differences

The property price limits for Help to Buy ISAs create a significant divide between London and the rest of England, and understanding these limits is crucial for your planning.

Outside London, you can use your Help to Buy ISA for properties costing up to £250,000. In London, the limit is £450,000. These are purchase price limits, not deposit limits – so if you’re buying a £280,000 house in Manchester, you can’t use your Help to Buy ISA at all.

The London limit applies to all London boroughs, including areas that might not feel particularly expensive. The £450,000 limit recognises London’s higher property prices but can still be restrictive in some areas.

If you opened your Help to Buy ISA in one region but are buying in another, you follow the rules for where you’re buying, not where you opened the account. So if you opened your ISA in Birmingham but are buying in London, you get the higher London limit.

These limits haven’t changed since the scheme launched, which means inflation has effectively reduced what you can buy with your Help to Buy ISA over time. A £250,000 budget goes less far today than it did in 2015.

Using Your Help to Buy ISA Alongside Other Schemes

Many first-time buyers wonder if they can combine their Help to Buy ISA with other government schemes. The rules here are generally favourable, but there are some important exceptions.

You can use your Help to Buy ISA alongside most first-time buyer schemes, including the mortgage guarantee scheme, shared ownership, and most local authority schemes. The key requirement is that you still meet the first-time buyer criteria for both schemes.

However, you cannot use a Help to Buy ISA and a Lifetime ISA for the same property purchase. You must choose one or the other. Since Lifetime ISAs offer the same 25% bonus but with higher contribution limits and purchase price limits, they’re often the better choice for those who qualify for both.

According to Citizens Advice, many people find the Help to Buy ISA rules restrictive compared to newer schemes. If you’re just starting to save, it’s worth comparing all your options before committing to one scheme.

You also can’t transfer money from a Help to Buy ISA to a Lifetime ISA while keeping the government bonus. If you want to switch, you’d need to close your Help to Buy ISA and lose any bonus entitlement.

What Happens When You Buy Your Home

The process of actually using your Help to Buy ISA when buying your home involves several steps that many first-time buyers find confusing. Getting this right is essential to claim your bonus.

When you find a property and have an offer accepted, you need to tell your solicitor or conveyancer that you have a Help to Buy ISA. They’ll handle the bonus application process, but you need to give them the right information early in the process.

You’ll need to provide a closing statement from your ISA provider showing how much you’ve saved. Most providers can produce this quickly, but it’s worth requesting it as soon as your offer is accepted to avoid delays.

The government bonus gets paid directly to your solicitor, not to you. They’ll use it towards your purchase costs – typically your deposit, but it can also go towards legal fees or other purchase expenses if needed.

Your ISA provider will close your account once the bonus is paid. You can’t keep it open or start saving in it again after you’ve claimed the bonus, even if you later sell the property.

Conclusion

The Help to Buy ISA remains a valuable tool for first-time buyers who opened accounts before 2019, offering a guaranteed 25% return on your savings up to £3,000. While the scheme is now closed to new savers, existing account holders have until December 2030 to use their benefits.

The key rules to remember are strict: you must be a genuine first-time buyer, the property must cost under £250,000 (£450,000 in London), and you can only save £200 per month after your initial £1,200 deposit. The government bonus is only paid when you complete your purchase, handled through your solicitor.

If you’re starting to save now, consider a Lifetime ISA instead, which offers similar benefits with more flexibility. For existing Help to Buy ISA holders, stick with your plan but understand the property price limits when house hunting.

The bonus can make a real difference to your deposit, but don’t let the rules restrict your property search too much. Sometimes it’s better to buy the right home without the bonus than the wrong home with it.

Finally, always inform your solicitor early about your Help to Buy ISA to ensure smooth processing and avoid any last-minute complications that could jeopardise your bonus.

Next read: Ready to explore other first-time buyer schemes? Check out our complete guide to first-time buyer mortgages: /first-time-buyer-mortgages-guide