The less you pay in charges, the more your investments can grow - and if you invest via a stocks and shares Isa then gains and dividends will be free of tax too.
Savers and investors will soon be able to pay into as many Isas as they like, bar the Lifetime Isa - with as many providers as they choose, from the new tax year on 6 April.
Someone who invested their full Isa allowance in a global tracker on the first day of the tax year for the past decade would have made £360,500, compared with £322,500 if they left it to the last day.
Whether you are starting from scratch, have an established strategy in place, or are looking to fine tune or reshape your portfolio, we have rounded up ideas for a huge variety of themes and styles.