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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteFor a UK Junior ISA (JISA), no parent-to-child transfer request is normally needed: it automatically becomes an adult ISA when the child turns 18. The young adult then controls withdrawals, investments and any provider transfer. A Child Trust Fund (CTF) also matures at 18, but its holder must access the money or arrange a transfer to an adult ISA. This guide covers only UK JISAs and CTFs; rules for custodial accounts, trusts and savings products in other countries or under other UK arrangements differ.
First establish which account you have
The handover rules depend on the account type, not simply on the fact that a parent saved or invested for a child. Check the latest statement, online account name or provider correspondence. If the paperwork is unclear, contact the financial institution and ask it to identify the legal product before requesting any withdrawal or transfer.
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| Account | Position before 18 | What happens at 18 | Main action for the young adult |
|---|---|---|---|
| Junior ISA (JISA) | The child generally cannot withdraw. From age 16, the child can become the registered contact and manage the account’s administration. | It automatically becomes an adult ISA. | Decide whether to leave the investments in the adult ISA, withdraw money, or use a formal provider transfer. |
| Child Trust Fund (CTF) | The registered contact manages the account unless the child takes control. The child can ask the provider to take over management from age 16. | The account matures and the holder can access the money. | Access the matured funds or arrange a transfer to an adult ISA, following the provider’s process. |
| Any other arrangement | Not established by the UK JISA and CTF guidance covered here. | Not stated. | Read the account agreement and obtain jurisdiction-specific advice before acting. |
A parent who paid the contributions is not necessarily the person entitled to give instructions after the child reaches adulthood. The account holder’s age and the product’s registered-contact rules determine who can act.
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Junior ISA
A JISA normally remains inaccessible for withdrawals until the child turns 18. At 16, however, the child may become the registered contact. That change gives the teenager administrative control, such as dealing with the provider and managing the account, but it does not create a right to withdraw before 18. The provider may require its own identity checks and change-of-contact procedure.
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Child Trust Fund
A CTF’s registered contact manages it while the child is under 18 unless the child takes over. From age 16, the child can contact the provider to take control of management or can leave the existing registered contact in place. Taking over management at 16 is separate from withdrawing the matured money at 18.
Use the two-year period before the 18th birthday to locate the provider, correct personal details and learn the provider’s access requirements. Government guidance sets the legal milestones but does not prescribe one universal form, login method, deadline or identity-document list for every provider.
Junior ISA: the automatic adult-ISA conversion
GOV.UK states that “Junior ISAs (Individual Savings Accounts) automatically turn into an adult ISA (Individual Savings Account) when the child turns 18.” In practical terms, the JISA provider does not normally need a parent to submit an asset-transfer instruction. The young adult becomes the person who controls the account.
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What the 18-year-old can do
- Keep the investments where they are. Investments left in the account stay inside the ISA wrapper, subject to the adult ISA’s terms and the provider’s available investments, charges and dealing arrangements.
- Withdraw money. The adult holder can request a withdrawal under the provider’s normal adult-account process. Selling investments may be necessary before cash can be paid out, depending on what is held and the provider’s facilities.
- Move to another provider. The holder can ask a receiving ISA provider to arrange a formal transfer. The receiving provider will explain its application and identification steps.
The conversion is an account-status change, not a gift from the parent at 18. Once adult terms apply, the provider deals with the young adult as its customer and follows its own security and verification controls.
Child Trust Fund: maturity and access at 18
A CTF matures when the child turns 18. The holder can then access the matured money. The holder may also transfer the CTF to an adult ISA, provided the receiving arrangement and provider accept the transfer under the applicable rules.
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Accessing cash or investments
Ask the CTF provider whether the account currently holds cash, investments or both. A cash withdrawal and an investment sale are operationally different: a provider may need to sell units or shares before paying cash, while an in-specie or investment transfer may be available only under particular terms. Do not assume that the same-day process, charges or settlement time applies to every CTF.
Where the CTF provider is unknown
Use old statements, contribution letters and family records first. If the provider cannot be identified, the young adult should use the government’s CTF-locating route and then contact the named provider. The registered contact’s knowledge or the fact that a parent made deposits does not replace the holder’s identity checks at maturity.
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There is no government-designated “best” destination for the money. The adult holder should compare the choices against goals, risk tolerance, time horizon and ability to manage an investment account.
| Choice | What it does | Questions to answer before choosing |
|---|---|---|
| Leave JISA investments in the adult ISA | Preserves the existing account structure while adult ISA terms apply. | Are the provider’s charges, investment range, service and risk level suitable for the holder’s plans? |
| Withdraw from a matured CTF or adult ISA | Converts the relevant holding into money outside that account. | Is the cash needed now? Will investments have to be sold, and what dealing or withdrawal conditions apply? |
| Transfer to another adult ISA | Moves the account or eligible holdings through a provider-to-provider process. | Does the receiving provider accept this type of transfer, and how do its charges, investments and access rules compare? |
| Change the investment selection without changing provider | Keeps the account with the current institution while altering holdings, if the adult terms permit it. | What dealing costs, fund restrictions, risk profile and processing time apply? |
Provider terms determine the practical details. Government guidance establishes the transition and transfer framework, not a recommended investment, fund, platform or provider.
A safe step-by-step handover plan
- Confirm the product and jurisdiction. Label it JISA, CTF or another arrangement. If it is not a UK JISA or CTF, stop and read the governing agreement before applying the steps below.
- Identify the current provider. Record the provider name, account reference, registered address, investment type and the contact details shown on the latest statement. Report a move or name change early so correspondence reaches the holder.
- Check authority before the 18th birthday. For a JISA, ask whether the 16-year-old wants to become registered contact. For a CTF, ask whether the child wants to take over management or leave the current registered contact in place until maturity.
- Ask the provider for its adult-access requirements. Confirm how the young adult will sign in or register, which identity documents are accepted, how a new address or name is verified, and whether investment dealing must be enabled separately. Treat these as provider-specific requirements, not universal legal forms.
- Review the holdings and costs. Obtain a current valuation, list the investments and note ongoing charges, dealing costs, withdrawal restrictions and the provider’s adult investment menu. A valuation can change before the birthday, so it is not a guaranteed payout.
- Choose the destination. Decide whether to retain the current adult ISA, withdraw, or transfer to another adult ISA. For a CTF, include the option of first accessing the matured account and then following the chosen provider’s instructions.
- If transferring, apply through the receiving provider. Tell the receiving provider that the source is a CTF or JISA and complete its transfer form and identity checks. Ask whether it will transfer cash, investments or both and how it handles holdings that it does not offer.
- Do not substitute a withdrawal for a formal transfer without checking. Taking money out and attempting to pay it into another ISA can produce a different result from a direct transfer and may be subject to the receiving provider’s rules. Obtain confirmation before selling or withdrawing.
- Check completion. Keep the transfer confirmation, final statement from the old provider and opening statement from the new one. Verify that the expected investments or cash arrived and that the holder, address and nominated contacts are correct.
How a provider-to-provider transfer works
HMRC’s manager guidance describes direct transfers for JISAs and for CTFs that move into a JISA or adult ISA arrangement. The receiving provider normally starts the process after the account holder applies. The old provider supplies the account information and transfers the eligible assets or cash according to the receiving provider’s instructions.
Questions to ask before signing
- Will the transfer be made as cash, as investments, or with a sale of holdings first?
- Are all current investments available on the receiving platform?
- What happens to an investment that the receiving provider cannot accept?
- Will the old provider charge for transferring or closing the account?
- When will dealing be suspended, and could the value change while assets are being transferred?
- Will the new account be an adult ISA from the outset, and what adult terms govern it?
These answers are product-specific. Obtain them in writing where possible, particularly if the account contains investments rather than uninvested cash.
Documents and information to prepare
No single checklist applies to every institution, but the following information commonly prevents avoidable delays:
- The young adult’s full name, date of birth, current address and contact details.
- Account number or reference, latest statement and provider correspondence.
- Valid identity evidence and any address evidence requested by the provider.
- Details of a changed name, previous address or corrected date of birth, with supporting evidence if requested.
- The receiving provider’s transfer application, if changing providers.
- A clear instruction about whether the holder wants cash, investments or a mixture, where the provider offers a choice.
Do not send original documents or disclose online banking credentials unless the provider’s secure process specifically requires it. Use contact details from a statement or the provider’s verified website rather than an unsolicited message.
Common mistakes and how to fix them
Assuming a parent must “sign over” a JISA
The JISA’s adult-ISA conversion is automatic. If a provider asks the parent to give an instruction, ask whether it is actually requesting an administrative update, identity check or investment instruction. The adult holder, not the parent, should complete adult-account actions.
Trying to withdraw a JISA before 18
A JISA is generally locked against withdrawals before 18. Becoming registered contact at 16 does not remove that restriction. Ask the provider to confirm the account type if a family member believes an early withdrawal is possible.
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Confusing registered contact with beneficial control
The registered contact handles administration while the child is under 18, subject to the CTF and JISA rules. That role should not be treated as permanent authority after the child becomes an adult.
Taking CTF money out before deciding where it belongs
At maturity, the holder can access the funds, but an immediate withdrawal may not be reversible through the same transfer route. Compare the adult-ISA option and ask the provider how a direct transfer works before requesting payment.
Assuming every provider uses the same deadline or form
Government guidance does not set one universal provider checklist. If an institution gives an unclear deadline, ask what event triggers it, what happens if documents arrive late and whether the account remains invested while verification is pending.
Ignoring investments that the new provider cannot hold
A transfer may require a sale, a cash transfer or a different investment selection. Ask before applying so the holder understands any period out of the market, dealing cost or change in risk.
Losing access because contact details are obsolete
Update the address and email before the birthday where the provider permits it. If the old registered contact receives all correspondence, the young adult should still establish a direct contact channel and retain the account reference.
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If the young adult cannot manage the account
Turning 18 does not automatically allow a parent or relative to continue operating an adult ISA. If the young adult lacks capacity to manage or withdraw from the account, GOV.UK identifies financial deputyship as the route for someone else to act on the person’s behalf. Scotland has a separate application route. The provider may need to see the relevant legal authority before accepting instructions.
Do not rely on a childhood registered-contact role, an informal family agreement or possession of passwords. Contact the provider and obtain appropriate legal guidance well before the 18th birthday, because the account may become adult-controlled while an application is still being prepared.
Questions to settle with the provider
Use this short script when contacting the institution:
- “Is this account a JISA, a CTF or another product?”
- “What exactly changes on the holder’s 18th birthday?”
- “What must the young adult do to obtain adult access, and which identity checks apply?”
- “Can the existing investments remain in place, and what adult charges and investment restrictions will apply?”
- “If we transfer, do you support a direct provider-to-provider transfer, and will it be cash or investments?”
- “What happens if the receiving provider cannot accept one of the holdings?”
- “What legal evidence is required if the holder cannot manage the account?”
Record the date, the representative’s name or reference number and any written instructions. That record is useful if the account is not updated as expected.
What this UK guidance does not cover
The process above is not a general rule for US custodial accounts, 529 plans, bare trusts, ordinary children’s savings accounts, pensions or accounts held in another country. Those arrangements can have different ownership, tax, maturity and court-order rules. Even within the UK, a provider’s terms can affect identity verification, investment handling and timing. When the product name is uncertain or a family situation is complex, obtain the provider’s written position before moving money.
Quick Recap
A concise decision checklist for the 18th birthday
- Have we confirmed whether this is a JISA or CTF?
- Does the young adult know the provider and account reference?
- Are the address, name and contact details current?
- Has the provider explained adult access and identity checks?
- Has the holder reviewed investments, charges and risk rather than focusing only on the balance?
- Is the decision to keep, withdraw or transfer deliberate?
- If transferring, has the receiving provider started a formal transfer?
- Have we avoided withdrawing money merely to imitate a direct transfer?
- If capacity is an issue, has the appropriate deputyship or Scottish process been considered?
- After completion, has the holder checked the new statement and retained the paperwork?
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