ISAs · 4 min
Cash in a normal account loses value over time. An ISA is a tax-free shield, and you get fresh room for it every year.
£20,000
tax-free allowance. Every. Single. Year.
The 10-second version
Think of a box with a “no tax” sticker on it. What you put inside decides how fast your money grows.
Cash ISA
Safe. Slow. Won't go down.
Stocks & Shares
Bumpy. Historically grows far more.
Same box. Different stuff inside. You choose the stuff next.
Pick one. There's no wrong answer, just a better fit.
Your £20,000 resets every tax year. Whatever you don't use disappears. It does not roll over.
6 Apr5 Apr: deadline
You can split it however you like, e.g.
£12k Stocks & Shares£8k Cash
Ready to dive deeper? The full ISAs guide has the mechanics, worked examples and fine print.