Question to the HM Treasury:

To ask the Chancellor of the Exchequer, what assessment she has made of the potential impact of the proposed cap on cash ISA contributions for under-65s on in East Grinstead and Uckfield Constituency.

This policy will affect those aged under 65 from April 2027, when the annual Cash ISA limit will be set at £12,000. It will not affect existing cash ISA savings.

A policy costing note for the package of measures introduced to support savers has been published alongside the Budget, including the changes to the ISA regime.

Following a technical consultation, new ISA regulations will be laid, and a Tax Impact and Information Note will be published.

The analysis used to produce the policy costing note is performed in aggregate and a breakdown by county or constituency is not available. However, HMRC regularly publish statistics on ISA subscriptions by region. Table 9.9 of HMRC’s annual savings statistics 2025 includes data for the South East.