ISA allowance

How much money can you put in an ISA?

Because of their generous tax benefits, the Government limits how much money you can put into ISAs. For the 2018/19 tax year the ISA allowance is a generous £20,000. You can split your allowance across a Stocks & Shares ISA and Cash ISA or invest it all in either one. The Junior ISA allowance for investing for children is £4,260.


Your ISA allowance for 2018/19 is £20,000.

Your ISA allowance resets every year

At the beginning of each new tax year your annual ISA allowance resets. You cannot carry your allowance over between years, so if you don’t use it you lose it. In April 2016 the Government made changes that allow you to take money out of your ISA and replace it in the same tax year without using up your allowance.

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Junior ISA allowance

Every year you can pay up to £4,260 into a Junior ISA for a child. From age 16 a child can also have an adult cash ISA alongside their Junior ISA. They can still only keep £4,260 per tax year in the Junior ISA, but they could also save up to £20,000 extra in an adult cash ISA between age 16 and 18.

Find out more about Junior ISAs

Speak to an expert about ISAs

Find out more about your ISA allowance and our award-winning Stocks & Shares ISA by speaking to our experts:

Free guide

A guide to stocks and shares ISAs

A guide to Stocks & Shares ISAs

This free guide tells you all there is to know about ISA limits, tax rules and how to open a Stocks & Shares ISA.