🇬🇧 Free ISA Calculator 2025

See your Stocks & Shares or Cash ISA grow completely tax-free.

📈 ISA Growth Calculator

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💡 ISA Tips

2025/26 ISA Allowance is £20,000

You can save up to £20,000 per year across all ISAs. Use it or lose it — the allowance resets each April.

Stocks & Shares ISA for Long-Term

Historically, stocks return 7-10% annually. For goals 5+ years away, a Stocks & Shares ISA typically beats a Cash ISA.