2025-03-22
ISA allowances and the order of using them
A calm order for filling cash and stocks and shares ISAs alongside pension contributions.
Each tax year brings a fresh ISA allowance. Using it early is less important than using it deliberately: cash for short-term goals, stocks and shares for money you can leave for five years or more.
If your employer matches pension contributions, that match usually comes first. Free money beats tax wrappers. After that, fill the ISA if you want flexible access before retirement age.
Couples can plan around two allowances. One partner may favour cash for a house deposit while the other builds a stocks and shares ISA for a longer horizon. The labels matter less than agreeing who holds which goal.
Keep a simple note of how much of the allowance you have used. Oversubscribing causes administrative hassle with HMRC and providers; undersubscribing simply leaves tax-free room unused until April.