For the 2017/2018 tax year, the maximum you can invest in ISAs is £20,000. You can use this allowance in a single ISA — for example, put £20,000 into a cash ISA — or split it across multiple ISA types. The four main types include:
Remember that the Lifetime ISA has a £4,000 limit.
You can split your allowance across multiple ISAs as long as you stick to the £20,000 maximum in a single tax year.
The allowance does not roll over once a tax year ends, so make sure you save or invest before the tax year ends (which ends on April 5th 2018). The new tax year starts on April 6th 2018.Back to FAQ's