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Junior Cash ISA

A tax-free account for a child which is ideal for long term savings. It is a good introduction to the ISA market for a child. You can vary the amount you save while taking advantage of the Junior ISA subscription limit. Currently restricted to children who live, work or study in Bath, or whose parents, grandparents or legal guardian have been a Bath Building Society customer for at least the past 12 months. Find out more and apply online.

Interest rate (AER)
Min/Max amount
£1 - max annual allowance
Not before 18th birthday

Suitable for savers who:

  • live, work or study in Bath, or the parent, grandparent or guardian has been a Bath Building Society customer for at least the last 12 months
  • want a long-term tax-free savings account for a child
  • are 16 or 17, live, work or study in Bath and want to start saving tax-free for themselves
  • want to manage the account online, via the Mobile App, by phone or in our Branches

Not for savers who:

  • might need access to the money before the child is 18
  • want to transfer in an existing JISA or Child Trust Fund

Is this the right product for you?

Please read the Key Product Information below before applying

  • What is the interest rate?
    • £1+ 5.49% AER*.
    • We calculate the interest daily and pay it annually on 31st December. Interest can be added to your account or paid to your nominated account.
    • *AER stands for Annual Equivalent Rate and shows what the interest rate would be if interest was paid and compounded once each year. The gross rate is the interest rate payable before tax.
  • Can Bath Building Society change the interest rate?
    • The interest rate is variable, so it can go up or down at any time.
    • For more details about why we might change the rate, you should read your Welcome to your Bath Building Society Account brochure.
  • What would the estimated balance be after 12 months based on a £1,000 deposit?


    • This would be the balance after 12 months if £1,000 was paid in, all interest was paid back into the account, there was no change to the interest rate and no money was taken out or paid in.
    • ISA means Individual Savings Account. When you pay money into your ISA, you subscribe to your ISA. Your payments are called subscriptions. All interest you earn from your ISA is tax free.
    • This is just an example to help you compare accounts. It does not take into account what you may do with the money in your account.


  • How do I open and manage my account?
    • This account is for children under the age of 18.
    • To open this account you must either be a child who is under 18 or a parent or legal guardian of the child if aged under 16.
    • If you are 16 or older, you can open the account by yourself.
    • Any money put in the account is owned by the child.
    • You must live in the UK to open this account or have a parent or legal guardian who is a Crown Employee serving overseas.
    • You can open it with £1.
    • This is a Cash ISA. You can only subscribe up to the maximum Junior ISA allowance each tax year. The overall Junior ISA allowance for 2024/2025 is £9,000.
    • Your subscriptions can be split between Cash Junior ISAs and Stocks and Shares Junior ISAs up to the overall Junior ISA allowance. We do not offer Stocks and Shares Junior ISAs.
    • You cannot transfer your Cash Junior ISA or Child Trust Fund into this account.
    • You can open an account on our website or by visiting one of our Branches in Bath.
    • You can manage the accounts you hold with us through Bath Online, or by using our Mobile App. You can register for Bath Online on our website, and you can register for the Mobile App on your smartphone.
    • Account holder identification will be required. This is usually obtained through our electronic identity verification service. However, if this proves inconclusive, here’s some popular ways to verify your ID.
  • Can I withdraw money?
    • This is a restricted access account. Money cannot be taken out until the child’s 18th birthday.
    • We will ask for identification for the child when they turn 18.
    • You can transfer all of your previous tax year subscriptions to another ISA provider. After you speak to your new ISA provider, they will let us know so we can make the transfer.


  • Additional information
    • We will write to the child at least 14 days before their 18th birthday to let them know what accounts we have for them. If we do not hear from them, the account will become an Instant ISA.
    • You must show us that you live, work or study in Bath to open this account. If not, you must have been a mortgage or savings customer for at least the last 12 months.
    • A child under 18 can only have one Junior ISA.
    • The parent or legal guardian who opens this account will be the registered contact. The account will be in the child’s name.
    • Anyone can put money into the account, and the child will take over the account when they turn 18.
    • This account is protected by the Financial Services Compensation Scheme (FSCS). You should read your FSCS Information and Exclusions sheet for more information about how your money is protected.
    • This account is a savings account, not a payment account as outlined in the Payment Services Regulation 2017.
    • You should read your Welcome to your Bath Building Society Account brochure and Junior ISA Terms and Conditions document to fully understand how your account works.
    • We can close an account at any time if you act inappropriately, such as by using abusive language.

Here are some Frequently Asked Questions about Junior ISAs

  • What is a Junior Cash ISA and how does it work?

    A Junior Cash ISA (JISA) is similar to a Building Society savings account although the money is locked in and cannot be withdrawn until the child is 18. Junior Cash ISAs come with one big advantage, your child doesn’t have to pay tax on the interest they warn on their savings, and you don’t either.

    A child’s parent or legal guardian muct open the Junior Cash ISA account on their behalf. Parents, friends and family can all save on behalf of the child as long as the total stays under the annual limit.

    Money in the account belongs to the child, but they can’t withdraw it until they turn 18, apart from in exceptional circumstances. They can, however, start managing their account themselves from their 16th birthday. When the child turns 18, the account is automatically rolled over into an adult ISA. They can also choose to take the money out and spend it as they wish.

  • How much can I put in a Junior Cash ISA each tax year?

    The Junior Cash ISA limit is £9,000 for the tax year 2024/25. If more than this amount is credited into a Junior ISA, the excess is held in a savings account in trust for the child – it cannot be returned to the donor.

    Parents, friends and family can all save on behalf of the child as long as the total stays under the annual limit.

  • Are there different types of Junior ISAs?

    A child can have a Junior Cash ISA, a Junior Stocks & Shares ISA, or both. Bath Building Society only offer a Junior Cash ISA. If a child has more than one type of Junior ISA, the amount they can save is still subject to a total £9,000 for the 2024/25 tax year.

  • How do I apply for a Junior Cash ISA?

    If you are eligible to apply for a Bath Building Society Junior Cash ISA you can apply via this product page or on our Mobile App. You can also open an account at one of our Branches.

  • Can I transfer my tax free savings from another provider to my Bath Building Society Junior Cash ISA?

    We currently do not accept transfers of an existing Junior ISA to Bath Building Society. This status is reviewed regularly.

  • Can I withdraw money from a Junior Cash ISA?

    You may be able to withdraw money from your Junior ISA depending on the terms and conditions of the account you have with us. Any money withdrawn out of a Junior ISA will lose its ISA status unless it is transferred our to another Bath Building Society ISA, or another provider.

  • What is a Child Trust Fund?

    A Child Trust Fund (CTF) is a long term tax-free savings account for children, designed to encourage them to develop a savings habit for their future adult life. Child Trust Funds were available to all children born in the UK whose parents were awarded child benefit between 1st September 2002 and 2nd January 2011.

    All money earned in a Child Trust Fund is tax free, including capital gains, interest payments and any other money earned on the account. This means all the money in the fund belongs to the account holder and none of it will be lost in tax deductions.

    On maturity, Child Trust Funds can either be cashed in or transferred into an adult ISA. If you have a Child Trust Fund and do not inform your provider what you would like to do with the money in it on maturity, the money will be held in a ‘protected account’ until you contact them.

    You can’t apply for a new Child Trust Fund because this government scheme is now closed, but you can keep an existing one.

  • Can I transfer money from a Child Trust Fund into a Junior ISA?

    If a child was born between 2002 and 2011 they might have a Child Trust Fund (CTF). Any money in a Child Trust Fund (CTF) can normally be transferred into a Junior Cash ISA. However, we are currently not accepting transfers of Child Trust Funds to Bath Building Society. This is reviewed regularly.

Important information before you apply

Before you apply please read our terms and conditions document and FSCS information sheet alongside the key product information above to understand how this account works.

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