An ISA (Individual Savings Account) is a tax-free way to save or invest. If you're starting to think about saving or investing, ISAs could be a good place to begin.
On other savings accounts, you may have to pay income tax* on the interest you earn. The interest on a cash ISA is free from tax, so all the interest you earn, you keep. Stocks & Shares ISAs also have tax benefits which we've explained in more detail in the tab below.
*From 6 April 2016, many savers will no longer pay tax on the interest they earn on non-ISA accounts. More about the government's new Personal Savings Allowance.