First-time buyer Isa v lifetime Isa – which one should you choose?

by | Sep 1, 2026 | Financial

First-time buyer Isa v lifetime Isa – which one should you choose?

The UK government is developing a new first-time buyer Isa account designed to help prospective homebuyers save for property purchases, with plans to introduce it around 2028. This new product is intended to eventually replace the existing lifetime Isa, which currently offers a 25% government bonus on contributions up to £4,000 annually for savers aged 18 to 40.

The lifetime Isa provides significant financial incentives, allowing those who maximize contributions from age 18 to 50 to accumulate £32,000 in government bonuses before accounting for interest or investment returns. However, the account has limitations, including a property price cap of £450,000 that has remained unchanged since 2017 despite rising house prices. Savers purchasing properties exceeding this threshold face a 25% penalty on withdrawals, which recovers the government bonus but also affects the saver’s original contributions.

The first-time buyer Isa is expected to simplify the current system by eliminating age restrictions and withdrawal penalties. However, industry experts note potential drawbacks in the new structure. The government bonus will be paid as a lump sum upon home purchase rather than monthly, resulting in lost growth opportunities. For example, a saver contributing £333 monthly over 10 years at a 6% return could lose more than £3,600 in potential growth by receiving the bonus at purchase rather than throughout the saving period. Additionally, the bonus calculation will be based solely on contributions, excluding any investment returns or savings interest earned.

Because the new account will not launch until later this year at the earliest, financial advisors recommend that prospective first-time buyers begin saving immediately using the lifetime Isa to capture the existing government bonus and benefit from compound growth. Those already holding a lifetime Isa cannot transfer it to the new first-time buyer Isa, though they may open both accounts simultaneously and use funds from each toward a single property purchase. Specific details regarding the bonus rate, contribution limits, and property price cap for the new account remain undetermined.

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