17 February 2026 · Guide

ISA allowances before the tax year closes

Unused ISA room disappears each April. Here is how we help clients decide between cash, stocks and shares, and transfers.

Coins stacked beside a small plant suggesting growth

Every UK tax year brings a fresh ISA allowance. Whatever remains unused on 5 April cannot be carried forward. That simple rule creates a seasonal rush among savers who hold cash outside wrappers or who have sold investments in a general account.

Cash ISAs suit emergency funds and near-term spending. Stocks and shares ISAs suit money that can stay invested through market swings. The right split depends on when you expect to need the capital, not on last year’s fund performance tables.

Transfers between ISA providers do not use up new allowance, provided you follow the receiving provider’s transfer process rather than withdrawing and redepositing. We see this mistake often when clients chase a slightly higher cash rate and accidentally break the wrapper.

At Ashford Lane we review ISA usage as part of wider portfolio work, not as an isolated product sale. If you have unused room and also hold taxable dividends or interest, filling the ISA can reduce a future tax bill without changing your overall investment mix.

March meetings fill quickly. If you want a short year-end wrapper check, contact us with your latest valuations and we will confirm whether a contribution or transfer is worth arranging before the deadline.

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