Martin Lewis has warned savers to "use or lose" their ISA allowances before the current tax year comes to an end on April 5.
A cash ISA is a saving or investment account that is tax-free up to a limit of £20,000 for the 2021/22 tax year.
A Lifetime ISA allows you to put in £4,000 each year, with the government adding a 25% bonus on top of the money you save.