ISAs are extremely popular. According to the latest Government statistics, there were 12 million adult accounts subscribed to in 2020/21, amounting to some £72 billion. There were also around 940,000 Junior ISAs, holding in the region of £1 billion. Compared to the previous year, Stocks & Shares ISAs grew in popularity with an extra 860,000 active accounts. While the number of Cash ISAs fell, they are still the most common type of ISA, comprising 66% of accounts.
While the number of active ISAs was lower in in 2020/21 than in the previous year, they are at their highest levels since 2015/16.