First-Time Buyer ISAs: Lifetime ISA vs Help to Buy ISA and Home-Buying Schemes

A first-time buyer deciding where to save can easily confuse a Lifetime ISA with a home-buying program. They serve different purposes: a Lifetime ISA (LISA) adds a government bonus to eligible savings, while schemes such as First Homes and shared ownership change how a home is purchased. The older Help to Buy ISA is still usable by existing holders but is closed to new applicants.

As of October 28, 2026, eligible UK savers can still open a LISA. The UK Budget announced that a new First Time Buyer ISA is planned for April 2029, and a separate change to LISA withdrawals starts on October 29, 2026. Those dates matter if you're about to buy. See the official Budget 2026 document.

A hypothetical first-home purchase: Maya and Alex

Illustrative example only: Maya and Alex are both 28, have never owned property, and are considering a £300,000 home in Manchester. They each save £4,000 into a LISA during a tax year. Assuming both qualify and ignoring interest or investment returns, each receives a £1,000 government bonus. Together, their accounts would hold £10,000 toward a future purchase.

That is two-thirds of a hypothetical 5% (£15,000) deposit for a £300,000 home—not the entire deposit and not a mortgage approval. They would still need funds for the remaining deposit and purchase costs. Each account must also satisfy the LISA's 12-month minimum period before a qualifying purchase.

Lifetime ISA vs Help to Buy ISA: key differences

These figures come from GOV.UK Lifetime ISA guidance and the Help to Buy ISA guidance. The 2026–27 overall ISA subscription limit is £20,000, including any LISA contribution.

When a LISA can be useful—and when it can backfire

A LISA may suit Maya and Alex because a £300,000 Manchester property falls below the £450,000 limit and, if both have eligible accounts, both can use their own bonuses for the same purchase. They must buy with a qualifying mortgage, intend to live in the property, and arrange payment through their conveyancer. The clock starts with the first actual payment, not simply opening an empty account.

The standard charge on an unauthorized withdrawal is 25% of the entire amount withdrawn, not just the government bonus. For example, £4,000 saved plus a £1,000 bonus becomes £5,000; a 25% charge leaves £3,750, ignoring any returns. This means losing £250 of the original savings as well as the bonus. See the official withdrawal rules.

Important October 2026 change: the government announced a 20% withdrawal charge starting October 29, 2026 for first-time buyers using LISA funds toward a home priced above £450,000, provided the other qualifying purchase conditions are met. This is not a charge-free purchase and does not change the 25% charge for other unauthorized withdrawals. Check the effective rule and your provider's processing requirements before requesting funds. The change is detailed in the 2026 Budget tax measures.

What if you already have a Help to Buy ISA?

If Maya instead had an old Help to Buy ISA, she could keep saving into it under its rules. But a £300,000 home in Manchester would exceed the £250,000 limit outside London, so it would not qualify for that ISA's government bonus. She could hold both an old Help to Buy ISA and a LISA, but she could only claim one of the two government bonuses for the same first-home purchase. An ISA transfer can have consequences for the annual LISA limit, timing, and withdrawal charges, so she should check with providers before moving funds.

Home-buying schemes are different from savings ISAs

A savings bonus helps build the cash you bring to a transaction. An affordable-homeownership program may instead reduce the purchase price, let you buy a share, or provide an equity loan. Eligibility, availability, and ongoing costs vary by nation and property.

First Homes: a discount on an eligible home in England

Under England's First Homes scheme, qualifying first-time buyers may purchase an eligible property at 30%–50% below market value. The household income cap is generally £80,000 (£90,000 in London), and the buyer needs a mortgage funding at least half the discounted price. Local eligibility rules and property availability also apply.

For Maya and Alex, a hypothetical eligible home worth £300,000 with a 30% discount would cost £210,000. That is a property-price discount, not £90,000 paid into their ISA. There is no rent on an unpurchased share, unlike shared ownership. However, the percentage discount normally carries forward when the home is sold, limiting the resale price; the official resale rules explain this restriction.

Shared ownership: smaller initial share, but rent and fees

With shared ownership in England, a buyer normally purchases a share of a home and pays rent on the remainder, potentially alongside service charges and other ownership costs. Initial shares can range from 10% to 75% under applicable models. Eligibility usually includes household income of £80,000 or less (£90,000 in London) and inability to afford a suitable home outright.

This could lower Maya and Alex's upfront purchase requirement, but they should compare all monthly outgoings: mortgage payments on their share, rent on the rest, service charges, repairs, and the cost of buying additional shares. They should not compare the mortgage payment alone with the cost of outright ownership.

Your First Home: announced, but not yet open

England's new Your First Home equity-loan scheme was announced on October 28, 2026. The published plan allows eligible buyers of participating new-build homes to use at least a 2.5% deposit, a 20% government equity loan that is interest-free for five years, and a repayment mortgage. Pre-registration is planned by the end of December 2026, with applications expected in February 2027 and first loans from April 2027; it is not a currently available mortgage offer.

For a £300,000 qualifying property, the government's example translates into a £7,500 deposit, £60,000 equity loan, and £232,500 repayment mortgage. The smaller initial deposit must be weighed against later equity-loan costs and the obligation to repay the government's stake. Actual eligibility, property supply, and lender terms will determine whether this route fits Maya and Alex.

What changes in Scotland, Wales, and Northern Ireland?

The LISA is UK-wide, but the housing schemes aren't uniform. In Wales, Help to Buy – Wales supports eligible new-build purchases of up to £300,000 through a shared-equity mortgage of up to 20%, with at least a 5% deposit; the published application deadline is March 31, 2027. In Scotland, the LIFT schemes include Open Market Shared Equity and New Supply Shared Equity, subject to local price limits and eligibility. Northern Ireland offers a separate Co-Ownership route with property-value limits. Checking the local program is essential before estimating how much support is available.

Will a new First Time Buyer ISA replace the Lifetime ISA?

The October 28, 2026 Budget sets out plans for a new First Time Buyer ISA from April 2029, replacing the LISA for new savers. The proposed product provides a 25% bonus on qualifying withdrawal, capped at £20,000, for a first home costing up to £450,000. The government says it will have no upper age limit for opening, unlike the LISA. Legislation and provider details are still to be completed; the new account cannot be opened in October 2026.

Existing LISA holders will be allowed to continue saving under their account rules. Someone eligible to open a LISA now should compare current needs and restrictions rather than assume the future product is already available. See the Budget announcement.

A practical decision checklist

1. Set the target price and location. Maya and Alex's £300,000 Manchester search qualifies under the LISA price cap, but not the Help to Buy ISA limit outside London.
2. Check savings eligibility and timing. Confirm age, residency, first-time-buyer status, and whether each LISA has received its first payment at least 12 months before purchase.
3. Calculate the entire cash requirement. Include deposit, conveyancing, survey, mortgage fees, moving expenses, and any applicable taxes—not just the ISA bonus.
4. Compare the whole housing arrangement. A discounted home has resale restrictions; shared ownership adds rent and service charges; an equity loan creates future repayment exposure.
5. Verify the program at the point of application. Get written lender and conveyancer guidance and check current eligibility, local availability, and the effective ISA withdrawal rules.

For Maya and Alex, the most straightforward starting point is to check their LISA dates and build a realistic cash budget before applying for a mortgage. If their income and circumstances qualify, they can then compare an available First Homes property or shared ownership with a normal purchase—and revisit Your First Home only when applications open. The right route depends on the home's price, their timeline, and total lifetime costs, not simply the largest headline bonus.