Here's how to check if your Isa stacks up, based on the average for your age group, emergency fund needs - and how you should save and invest into it at key moments in your life. If your under 25, you should have £11,420 saved - by your 40s and 50s, it should be deep into six figures.
How much you should have in an Isa at each age: Are you on track for a bumper pot in your golden years?
