Treasury correspondence on proposed ISA changes published

The Economic Secretary to the Treasury wrote to the Chair of the Treasury Committee on 30 March 2026 in response to the Chair's letter on proposed changes to ISAs¹. The correspondence was published by the committee on Wednesday 15 April 2026¹.

The publication is listed as correspondence from the Economic Secretary to the Treasury to the Chair's letter on proposed changes to ISAs, dated 30 March 2026¹. It sits under the committee's work package on the work of HM Treasury, which the committee lists as running from Wednesday 5 February 2025¹. The published file runs to 135,227 bytes¹.

The committee has not published the text of the letter itself in the material available, and the specific changes proposed to ISAs have not been reported here¹. The correspondence follows an earlier letter from the Chair, which is referred to in the title of the publication but is not reproduced in it¹.

Why it matters for households

ISAs are the main tax-advantaged savings and investment wrapper for UK households, and the annual allowance sets how much can be paid in each tax year. Any change to the rules governing ISAs would affect savers and investors who hold them, though the substance of what is proposed has not been set out in the published correspondence¹. The letter is dated 30 March 2026 and was published on 15 April 2026, so any change described in it would take effect from a date that has not been reported¹.

What happens next

The correspondence has been published as part of the Treasury Committee's work on HM Treasury¹. No further steps, timetable or consultation have been reported¹.