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How much can you save in an ISA?

Clare covers how much you can save in an ISA and how you can split this allowance between the different types of ISAs.

1 minute view

Who's this for? All investors

The value of investments can fall as well as rise and you could get back less than you invest. If you’re not sure about investing, seek independent advice. Tax rules can change and their effects on you will depend on your individual circumstances.

Hello, I am Clare, Savings and Investments Director at Smart Investor, and I am going to explain how much you can save in an ISA. Please be aware though that we can not offer personal advice so if you do not feel confident about making an investment decision on your own, do seek independent financial advice. Every tax year, which starts on the sixth of April, each of us has an annual ISA allowance. This is the maximum amount you can put into ISAs that tax year. And for the current tax year the ISA allowance is £20,000.

You do not have to invest this amount all at once, though and you do not have to use the full allowance. Just put away what you can afford. You can choose to pay in a lump sum or several lump sums over the year, but you can also choose to make regular smaller contributions every month. There are several different ISAs to choose from. You can invest the whole sum in a cash or investment ISA, or you can split it between a cash investment innovative finance and lifetime ISA. However with a lifetime ISA, the maximum allowance is lower at £4,000 and you can only open one if you are under the age of 40.

If you would like more detail about the different types of ISAs and how they work, or just to find out more about investing, visit our website, as there are loads of videos there to help.


In these four short videos Clare tells us what an investment ISA is, how much you can save, what you can invest in, and how ISA flexibility works.

They’re all bite sized videos, each roughly one-minute-long to give you a quick overview of ISAs. If you’re looking for some more detailed information, we’ve got lots of articles to help. Here are a few you might be interested in:

What is an investment ISA?

ISA rules explained

Key tax rates, limits and allowances

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The value of investments can fall as well as rise and you could get back less than you invest. If you’re not sure about investing, seek independent advice. Tax rules can change and their effects on you will depend on your individual circumstances.

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Investment ISA

An easy way to start investing

We offer two ways to invest using an Investment ISA (also known as a stocks and shares ISA). Choose your own investments with Smart Investor, or let us make the decisions for you with Plan & Invest. Either way, invest up to £20,000 per year and any returns you make are tax-free1.

Start investing to make the most of those special times to come by using your new 2021-22 ISA allowance in an Investment ISA today. The sooner you begin, the sooner you could grow your money, tax efficiently.

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