Last updated: 29 March 2026

The 5 April deadline is closing in, which means your 2025/26 ISA allowance is about to expire. Every UK adult gets £20,000 to shelter from tax each year, and if you do not use it, you lose it for good. So where should you put it? This guide covers the best investment ISA options for 2026, comparing the top platforms on fees, features, and who each one suits best.

Disclaimer: This is not financial advice. Investing involves risk and you can lose money. Always do your own research or speak to a qualified financial adviser before making investment decisions.

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