The Autumn 2025 Budget announced a significant change to the Cash ISA subscription limit, and whilst the change does not take effect until April 2027, it is worth understanding now because the current tax year may represent the final opportunity for some savers to use the existing allowances in their existing form. Here is what is changing, what is staying the same, and the factual picture as it stands at the start of the 2026/27 tax year.The total ISA allowance for the 2026/27 tax year remains at £20,000 per person, which has been the position since 2017/18. This allowance can…
David GallagherJune 1, 2026









