For UK first-time buyers planning a home purchase in 2026 and beyond, two government-backed savings schemes offer a 25 per cent bonus on savings: the Lifetime ISA (LISA) and the Help to Buy ISA. While both aim to assist with a deposit, their eligibility, contribution rules, bonus payment methods, and property price limits vary significantly. Understanding these distinctions is crucial for optimising your savings strategy, especially as the Help to Buy ISA closes to new contributions by November 2029 and a new first-time buyer ISA is under consultation.

What are the UK's First-Time Buyer ISAs in 2026?

The UK government offers two primary savings products designed to help first-time buyers accumulate a deposit for their first home: the Lifetime ISA and the Help to Buy ISA. Both schemes reward savers with a 25 per cent government bonus on contributions, but their operational mechanics and conditions of use differ substantially. New applicants in 2026 can only open a Lifetime ISA, as the Help to Buy ISA closed to new accounts on 30 November 2019. However, existing Help to Buy ISA holders can continue to contribute to their accounts until 30 November 2029. a first-time buyer cannot claim the government bonus from both a Lifetime ISA and a Help to Buy ISA for the same property purchase, even if they hold both accounts simultaneously.

How do the Lifetime ISA and Help to Buy ISA schemes work?

Both ISAs provide a significant uplift to savings, but they operate under different structures regarding contributions, bonuses and usage for a home purchase.

What is the Lifetime ISA (LISA)?

The Lifetime ISA is a UK savings account designed to assist individuals in saving for their first home or for retirement. It is open to UK residents aged 18 to 39 at the point of opening, with contributions permitted up to (and including) the day before the saver's 50th birthday. Savers can contribute up to 4,000 pounds per tax year, which counts towards the overall 20,000 pound annual ISA allowance. The government pays a 25 per cent bonus monthly on these contributions, capped at 1,000 pounds per tax year. The property purchase price limit for a LISA is 450,000 pounds, applied uniformly across the entire UK. The home must be a first home, bought with a residential mortgage, and the buyer must be a first-time buyer. A key advantage is that the bonus can be used directly towards the deposit. Withdrawals for a qualifying first-home purchase must be requested at least 30 days before completion and paid by the LISA provider directly to the buyer's conveyancing solicitor. A 25 per cent withdrawal charge applies to any withdrawal not used for a qualifying first-home purchase, made before age 60 (unless in cases of terminal illness with less than 12 months to live). This charge applies to the entire withdrawal, including the bonus, meaning a saver could potentially lose more than the original government bonus.

What is the Help to Buy ISA (HTB ISA)?

The Help to Buy ISA is also a UK savings account that adds a 25 per cent government bonus to contributions used to buy a first home. However, it has been closed to new applicants since 30 November 2019. Only existing account holders can continue to contribute. Contributions are capped at 200 pounds per month, although an initial 1,200 pound lump-sum deposit was allowed when the account was first opened. Existing holders must cease contributions by 30 November 2029. The 25 per cent government bonus for a Help to Buy ISA is capped at 3,000 pounds, requiring a closing balance of 12,000 pounds to achieve the maximum bonus. The property purchase price limit differs by location: 250,000 pounds outside London or 450,000 pounds inside London. A significant difference from the LISA is that the bonus is paid by HMRC at the completion of the home purchase, not at the time of contribution. This means the bonus cannot be used towards the deposit and can only be used towards completion-day costs.

Which ISA is best for your first home purchase?

The optimal choice between a Lifetime ISA and an existing Help to Buy ISA depends on an individual's specific circumstances, including age, existing savings, and location of intended property purchase.

For those aged 18-39 with no existing Help to Buy ISA

For individuals in this demographic who have not previously opened a Help to Buy ISA, the Lifetime ISA is the only government-bonus scheme available for opening. They can open a LISA and contribute up to 4,000 pounds per tax year, receiving a 25 per cent bonus monthly, up to 1,000 pounds annually. This bonus is paid much faster and can be used directly for the deposit, offering immediate benefit to the buyer's savings power.

For those aged 40-50 with an existing Help to Buy ISA

Individuals aged 40 to 50 are generally ineligible to open a new Lifetime ISA, as the age limit for opening a LISA is 39. If they hold an existing Help to Buy ISA, they can continue contributing up to 200 pounds per month until 30 November 2029, accruing a bonus up to 3,000 pounds. This makes the Help to Buy ISA their primary vehicle for a government bonus, provided they meet the property price limits.

For London first-time buyers approaching the £450,000 property cap

The property price limit is a critical differentiator. The Lifetime ISA has a universal 450,000 pound limit across the UK. The Help to Buy ISA, however, has a 450,000 pound limit specifically for properties inside London, but only 250,000 pounds for properties outside London. A first-time buyer in London considering a property at the upper end of the market, for instance, a 450,000 pound property, would find both ISAs equally capable of handling the purchase price limit. However, the Lifetime ISA bonus can be used towards the deposit, offering a more immediate financial benefit.

What new first-time buyer ISA is being considered for 2026?

In early 2026, the UK Government announced a consultation on a new, simpler ISA product exclusively for first-time buyers. This proposed new ISA would streamline the existing offerings, removing the retirement savings option present in the Lifetime ISA. A key change under consideration is that the 25 per cent bonus would be paid at the point of home purchase, rather than monthly as with the LISA. This aligns the bonus payment mechanism more closely with the existing Help to Buy ISA, meaning it would likely not be available for the initial deposit.

What should you do next?

Assess your current eligibility for each scheme. If you are aged 18-39 and do not hold a Help to Buy ISA, consider opening a Lifetime ISA to benefit from the monthly 25 per cent bonus. Lifetime ISAs are offered in both Cash and Stocks and Shares forms by various providers, including Moneybox, Tembo, Nutmeg, Hargreaves Lansdown, and AJ Bell. Evaluate your property aspirations, particularly the likely purchase price and location, to determine which ISA's limits best suit your plans. If you hold an existing Help to Buy ISA, understand that contributions must end by November 2029. Remember that you can hold both types of ISAs, but can only claim one government bonus per property purchase. Stay informed about the government's consultation on a new first-time buyer ISA, as future changes could impact long-term savings strategies.