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Junior ISA

Big dreams start small

Give your little ones a head start with tax-free savings

Junior ISA: facts and figures

  • Rate 3.25% tax-free/AER
  • Access No withdrawals until age 18
  • Tax Tax-free
  • Minimum investment £1
  • Maximum investment £9,000 Tax year 2020/21

A Junior ISA is suitable for savers who:

  • want a long-term tax-free savings account for their child
  • are 16 or 17 and want to start saving tax-free for themselves
  • are happy to open and manage their account online only
  • want to transfer in an existing Junior ISA or Child Trust Fund

A Junior ISA is not for savers who:

  • might need access to the money before the child is 18
  • prefer to manage their account at a branch or by post
  • already have a Child Trust Fund and want to keep it

New customers

Summary box

Account name

NS&I Junior ISA

What is the interest rate?

3.25% tax-free/AER

We calculate the interest daily and add it to your account once a year on 6 April.

Can NS&I change the interest rate?

Yes, the rate is variable so we can change it up or down from time to time, for example when the Bank of England base rate changes or when rates in the general savings market change. See the customer agreement (terms and conditions) for more details.

What would the estimated balance be after 12 months based on a £1,000 deposit?

A £1,000 deposit would be worth £1,032.50 after 12 months, if the current interest rate stayed the same during the 12 months.

This is an illustration only, so it doesn’t take into account your individual circumstances. It assumes that you don’t make any additional deposits during the year.

How do I open and manage my account?

Our Junior ISA is for children aged under 18 who live in the UK. (Children under 18 who live outside the UK can only hold a Junior ISA if they are a UK Crown servant, or married to or in a civil partnership with a UK Crown servant, or a dependant of a UK Crown servant.)

For children aged under 16, only their parent or legal guardian can open an account. Children aged 16 or 17 can open their own account, or their parent or legal guardian can open it for them.

You can:

  • apply for, and manage, a Junior ISA online only
  • open an account with at least £1, paid by a debit card in your own name, issued by a UK bank
  • pay in up to the maximum Junior ISA allowance each tax year (£9,000 for 2020/21)

If you’re unable to use our online service due to exceptional circumstances, please call us to discuss your options

If you want to switch to Junior ISA from another NS&I account or investment held in the child’s name:

Download a switching form

Call us

Can I withdraw money?

No, you can’t withdraw money from any Junior ISA – they are designed as long-term savings accounts to build up a nest egg for the child when they reach 18. (The only exceptions are if the child dies or has a terminal illness.)

On the child’s 18th birthday, we’ll automatically transfer the money to an adult cash ISA from NS&I. The child will then be able to withdraw money. We’ll contact the person who looks after the account about a month before the transfer happens.

Additional information

The interest earned is tax-free, so it won’t count towards the child’s Personal Savings Allowance.

Find out more about tax and savings

We’ll send you an electronic statement in April each year, showing all your deposits and interest earned.


Tax-free means the interest is exempt from UK Income Tax.

AER (Annual Equivalent Rate) illustrates what the annual rate of interest would be if the interest was compounded each time it was paid. Where interest is paid annually, the quoted rate and the AER are the same.

  • Need to find out more?

    Our Handy guide tells you more about:

    • transferring in from a Child Trust Fund or other Junior ISA
    • how to upload images of documents to confirm your identity and address
    • how the child can take over the account when they reach 16
    • what happens when the child reaches 18

    Download our Handy guide

Existing customers

Managing your account

While the child is under 16, only their parent or guardian can manage the Junior ISA. Once the child reaches 16, they can look after the account by registering for our online service.

You can look after the Junior ISA online only. You’ll be able to log in to check your balance, review your transactions and change your personal details. We’ll send you an electronic statement every April, showing all deposits made and interest added.

Remember, no withdrawals can be made from a Junior ISA. On the child’s 18th birthday, we’ll automatically transfer the money to an adult cash ISA from NS&I. The child will then be able to withdraw money. We’ll contact the person who looks after the account about a month before the transfer happens.

  • Pay money in

    The person who looks after the Junior ISA can pay in by debit card. And anyone can pay in by bank transfer and standing order. All deposits must be from a UK bank account.

    By bank transfer and standing order

    Give the following details to your bank and tell them how much to transfer and how often. You’ll normally be able to do this online, by phone or in a branch, depending on your bank.

    Reference: You must enter your Junior ISA account number (not your NS&I number) as the reference. You can find your account number on your statement or by logging into our online service.

    Make sure you enter your Junior ISA account number correctly. Don't add any other information in the reference field apart from your account number.

    Payee name: NS&I
    Account number: 11994808
    Sort code: 60 89 73

    To cancel, contact your bank – not NS&I.

    Any deposits that would exceed the annual subscription limit will be automatically refunded in full to your bank account, so you may want to check before making the deposit.

    Online or by phone

    Log in or call us at any time with your debit card details.

    Log in

    Call us

New customers
Apply now
Existing customers
Top up by bank transfer Top up by debit card Transfer in from another provider