Bath Building Society Junior Cash ISA

A Junior Cash ISA is a tax-free savings account for a child under 18. The Bath Building Society Junior Cash ISA is one of these: money paid in grows free of income tax and capital gains tax, no withdrawals are allowed before the child's 18th birthday, and the account is always held in the child's name. The parent or legal guardian who opens it is the registered contact until the child takes over¹.

The account is for children under 18, and a child can hold only one Junior ISA of any kind at a time¹. Anyone can pay in, including grandparents, but the money belongs to the child from the moment it is deposited¹. Bath Building Society's own site carries the current interest rate and the current Junior ISA allowance; this page covers how the account works, who can open it, how transfers are handled and what happens at 18.

Because the money is locked away until 18, the account suits saving with a long horizon rather than money that might be needed sooner. The trade-off is deliberate: the tax-free treatment comes with the restriction on access, and the rules on that restriction are set in legislation, not by the provider².

What it is and who it is for

The Bath Building Society Junior Cash ISA is a cash savings account wrapped in the Junior ISA tax wrapper. Interest is calculated daily and paid annually on 31 December, and it is added to the account rather than paid out¹. The child does not pay tax on the interest, and neither does the adult who opened the account³.

The account is for children under the age of 18¹. A child can open it themselves from age 16; below that, a parent or legal guardian must open it on their behalf¹. Whoever opens it becomes the registered contact, but the account is in the child's name and any money put in is owned by the child¹. That ownership point matters if relationships change: the money is not the adult's to reclaim.

Bath Building Society also offers a Junior Saver account, which is a different product with different rules. The Junior Saver is open to under-18s who either live, work or study in Bath (BA1 and BA2 postcodes), or who have a parent or grandparent who has been a Bath Building Society customer for at least 12 months⁴. The Junior Cash ISA has no equivalent local restriction, but it does require the child to be a UK resident for tax purposes, or to have a parent or legal guardian who is a Crown Employee serving overseas¹.

The society's wider ISA range covers cash ISAs, fixed rate ISAs and a Lifetime ISA, but not flexible ISAs, stocks and shares ISAs or innovative finance ISAs⁵. A Junior Cash ISA is a cash product only; a stocks and shares Junior ISA is a separate type of account, and subscriptions can be split between the two up to the overall Junior ISA allowance⁶.

How it works

Money paid in stays in the account until the child turns 18. There is no early access, and the account cannot be closed to release funds before then¹. Interest is calculated daily and paid annually on 31 December, and it is added to the account¹.

The account can be managed through Bath Online or the Mobile App¹. Passbooks are not issued for accounts opened through Bath Online or the Mobile App¹. The child can start managing the account themselves from their 16th birthday, although the money remains locked until 18³.

At 18, the account matures. Bath Building Society writes to the child at least 14 days before their 18th birthday to explain what accounts are available. If the child does not respond, the account becomes an Instant ISA¹. The society's Instant ISA is open to anyone aged 18 or over and can be opened on the product page, through the Mobile App, or at a branch in Bath⁷.

How the fees and charges work

There is no charge to open or run the account, and no fee for paying money in. The costs that arise are the ones attached to moving money or breaking the rules, and they are worth knowing before opening.

The main restriction is access. Withdrawals are not permitted before the 18th birthday¹. That is not a charge, but it is the condition that shapes everything else: money put in cannot be taken back out, so the account is unsuitable for funds that might be needed for school fees, a car or a house deposit before the child is 18.

Transfers in are free, but they come with their own rules. A Junior Cash ISA balance must be transferred in full, because a child can only hold one Junior Cash ISA at a time¹. Where the transfer comes from a stocks and shares Junior ISA, any subscriptions made in the current tax year must be transferred in full³. Transfers from cash accounts should complete within 15 working days; transfers from stocks and shares Junior ISAs can take up to 30 calendar days¹.

The transfer form must include a handwritten signature, and it can be sent by post or brought into a branch¹. That is a practical point rather than a cost, but it is the step people most often miss.

Bath Building Society's other savings products carry their own charges. None of these apply to the Junior Cash ISA, but they show the pattern: the society charges for specific services rather than for holding an account.

Who can apply and how to apply

To open the account, the applicant must be either a child under 18 or a parent or legal guardian of a child under 16. From 16, the child can open the account by themselves¹. The child must be a UK resident for tax purposes, or have a parent or legal guardian who is a Crown Employee serving overseas¹.

Applications can be made online through the product page, through the Mobile App, or at one of the society's branches³. Account holder identification is required, and this is usually obtained through the society's electronic identity verification service¹. Where electronic verification does not work, or where the applicant is under 18, further identification is requested⁸.

The society's identification rules are detailed. Documents can be used either to confirm identity or to confirm name and address, but not both, so one proof of identity and one proof of name and address are needed⁸. Accepted identity documents include a current valid full passport, a valid UK photocard driving licence, a current Armed Forces ID card, a Home Office biometric residence permit, a firearms certificate or shotgun licence, an HMRC tax document less than a year old, and a DWP pension entitlement letter for the current year. Birth or adoption certificates and NHS documents showing name, date of birth and NHS number are accepted for under-18s only⁸.

Certified copies must be certified within the last 12 months using the words "I confirm that I have seen the original document"⁸. The certifier must not be related to the applicant, must not be a joint account holder or borrower on the applicant's mortgage, and cannot certify their own documentation. Accepted certifiers include a legal professional, a qualified accountant, a medical professional, a Post Office official or an Embassy official⁸. A non-UK passport can only be certified by a UK bank or building society manager, a solicitor or an Embassy official⁸.

If the last account with the society was opened less than a year previously, no new identity check is needed; a check is performed if it was longer than a year⁸. Original documents are not usually returned by special delivery, and the society does not encourage sending originals by post⁸.

Transferring an existing Junior ISA or Child Trust Fund in

Bath Building Society accepts transfers of an existing Junior ISA or Child Trust Fund into the Junior Cash ISA¹. The society accepts transfers in for all its ISA products that are available to open⁹.

The process is straightforward but has fixed steps. An ISA Transfer In form must be completed and signed, and the account must be opened before the form is submitted⁹. The form must include a handwritten signature, and it can then be submitted with the application, sent by post, or brought into a branch³. The society contacts the existing provider to arrange the move.

Two rules catch people out. First, a Junior Cash ISA balance must be transferred in full, because a child can only hold one Junior Cash ISA at a time¹. Second, where the transfer comes from a stocks and shares Junior ISA, any subscriptions made in the current tax year must be transferred in full³. Partial transfers are possible in some other ISA contexts, but not here.

Transfers out are also permitted. Transfers of current year or existing subscriptions to another ISA provider are allowed⁶. The same one-account rule applies in reverse: the receiving provider will need the balance in full if it is a Junior Cash ISA.

The society's general transfer rules for adult ISAs give a sense of how it handles timing. It only accepts partial transfers from deposits made in previous tax years, and any amounts paid in the current tax year must be transferred in full⁹. It only accepts full transfers of Junior Cash ISAs and Lifetime ISAs⁹. Transfers into a current Junior Cash ISA, Lifetime ISA or Instant ISA are possible, but a Fixed Rate ISA requires opening a new account⁹.

How your money is protected

The Junior Cash ISA is protected by the Financial Services Compensation Scheme (FSCS)¹. The FSCS is the UK's deposit guarantee scheme, and it covers eligible deposits if a bank or building society fails¹⁰.

The limit is applied to the total of any deposits held with Bath Building Society, not to each account separately¹⁰. That means money in a Junior Cash ISA, an Instant ISA, a Lifetime ISA or any other Bath Building Society savings account counts towards the same limit.

For a Junior Cash ISA, the money belongs to the child, so the child's own limit applies to their deposits. Where a child holds other Bath Building Society accounts, those balances count together. Where the child holds accounts with other banks or building societies, those are separate institutions with their own limits.

The FSCS protection applies to eligible deposits. It does not cover investments, and it does not cover money held outside the deposit-taking part of a firm. For a cash ISA, the deposit is the protected element.

The society also has a security and fraud page setting out how it handles fraud and what customers should do if they suspect it¹¹. That is separate from FSCS protection, which applies if the society itself fails rather than if a customer is defrauded.

Problems, complaints and getting help

If something goes wrong, the first step is to contact Bath Building Society. The society has an internal complaints procedure setting out how complaints are dealt with, and unresolved complaints may be referred to the Financial Ombudsman Service¹².

The Financial Ombudsman Service is free to consumers and looks at complaints about financial firms that have not been resolved. It can consider complaints about savings accounts, including Junior ISAs, where the firm has had the chance to put things right first.

For free, impartial help with money questions, MoneyHelper is the government-backed service. The society itself points customers to Citizens Advice, MoneyHelper and StepChange Debt Charity for debt help¹³. Those organisations can help with wider money problems, including where savings and debts need to be looked at together.

If the problem is about how personal information has been used, the Information Commissioner's Office can be complained to¹⁴. That is a separate route from the Financial Ombudsman Service and covers data protection rather than the financial product itself.

Where a complaint relates to a transfer that has gone wrong, the timing rules are worth knowing. Transfers from cash accounts should complete within 15 working days, and transfers from stocks and shares Junior ISAs can take up to 30 calendar days¹. If a transfer takes longer than that, it is a basis for asking the provider what has happened.

The society can close an account at any time if it is not used as intended, or if a customer acts inappropriately, such as abusive behaviour⁶. That is a term of the account rather than a complaint route, but it is worth knowing that the society reserves that right.