Here’s what YOU need to know about ISAs. An ISA is a tax wrapped account that comes in 3 main types. Across all your ISA types. you can add £20,000 per tax year. There are 3 main types of ISAs. 1️⃣ Cash ISAs - essentially a savings account that’s not subject to tax 2️⃣ Lifetime ISAs - used for your first home or retirement - you can add a max of £4,000 each year (as part of your £20,000 overall ISA contribution) The government will top you up with a 25% bonus up to the value of £1,000 each year.