Our calculator can reveal how much your savings will be worth in a set period of time – be it one year or 10, and whether you ...

Our calculator assumes your investment will grow by a generous 7% a year, although be warned many investments don't. This shows what charges will do to your investment - Isa or unit trust/Oeic ...

At the last count, there were nearly 5,000 Isa millionaires in Britain, and the top 25 have pots averaging a whopping £8.8m.

Savers can transfer previous years' Isa nest eggs to a new account for ... Bear these in mind before you act. Use our calculator below to see just how much you could earn.