Child Trust Fund vs Junior ISA: How to Transfer and Maximise Your Child's Money

Quick answer

If your child has a Child Trust Fund and it is sitting in a legacy stakeholder account — often at providers like OneFamily, Foresters Financial, or HSBC — there is a strong case for transferring it to a Junior ISA. The transfer is free, does not consume any of the £9,000 annual JISA allowance, and typically results in lower charges, better investment choice, and a more modern wrapper.

The Child Trust Fund scheme closed to new accounts in January 2011 and was replaced by the Junior ISA. More than a decade later, millions of CTF accounts remain open, many underperforming relative to what a modern JISA could offer.

This guide covers everything: the difference between CTFs and JISAs, why and when to transfer, the step-by-step process, and what to do when the child turns 18.

Part 1: Child Trust Funds vs Junior ISAs — what is the difference?

Child Trust Fund (CTF)

The CTF scheme ran from September 2002 to January 2011. It was a government initiative to give every child born in the UK a financial start in life. Each eligible child received a government voucher:

• £250 for most families (with a second £250 at age 7).
• £500 for families receiving Child Tax Credit at the full (means-tested) rate, with a second voucher at 7.

Parents could open an account with a registered CTF provider and pay in the voucher. If they did not act within 12 months, HMRC opened a Revenue-allocated account automatically. Additional contributions from parents, grandparents, and others were allowed up to an annual cap (now £9,000, the same as JISAs).

CTF accounts came in three main types:

1. Stakeholder CTF — a default, low-choice option mandated to cap charges at 1.5% per year and invest in a broad tracker, typically the FTSE All-Share, with automatic lifestyling (de-risking) as the child approached 18.
2. Shares-based CTF — investment-based, wider fund choice, no charge cap.
3. Cash CTF — savings-style with interest.

Junior ISA (JISA)

The Junior ISA replaced the CTF in January 2011. It operates on similar principles — tax-free growth, locked until 18, for UK-resident children — but with a better product framework:

• Annual allowance: £9,000 per child per tax year (2025/26 and 2026/27).
• Two types: Junior Cash ISA and Junior Stocks & Shares ISA. A child can hold one of each simultaneously.
• No government top-up (unlike CTFs, which received government vouchers; no ongoing top-up for JISAs).
• Provider range: banks, building societies, and investment platforms including Vanguard, AJ Bell, Hargreaves Lansdown, Fidelity, and Wealthify.
• Who can open: a parent or legal guardian with parental responsibility. Anyone can contribute.

The key differences

A child cannot hold both a CTF and a JISA simultaneously — the CTF must be fully transferred before a JISA can be subscribed to.

Part 2: Why transfer from a CTF to a JISA?

There are three substantive reasons to transfer, and one strong emotional reason to keep things as they are (inertia). Let us deal with the facts first.

Reason 1: Lower charges

Many legacy CTF stakeholder accounts are still charging the maximum 1.5% per year. The modern JISA market has driven charges far lower. A child's Stocks & Shares JISA on a modern platform typically costs 0.15–0.45% all-in (platform fee plus underlying fund cost).

The impact on a real pot:

Assume a £5,000 CTF balance, 6% gross annual return, held for 15 years until the child turns 18.

The charge difference of roughly 1.25% per year costs over £2,000 on a relatively modest pot. On a pot of £15,000 (contributed regularly over many years), the difference is proportionally larger — approximately £6,000–£7,000.

Reason 2: Better investment options

Stakeholder CTFs typically invest in a FTSE All-Share tracker with automatic lifestyling. The FTSE All-Share is predominantly large-cap UK companies — around 2% of global market capitalisation. A Junior Stocks & Shares ISA on a modern platform gives access to:

• Global index funds (e.g. Vanguard FTSE Global All Cap, HSBC MSCI World) — covering thousands of companies across 50+ countries.
• Multi-asset funds — balanced equity/bond exposure.
• Individual ETFs and investment trusts.
• ESG and thematic funds for families who prioritise them.

The historical performance of global equities vs UK-only equities over 20-year periods generally favours global diversification, though past performance is not a guarantee.

Reason 3: Lifestyling may not suit your family

Stakeholder CTFs automatically shift money from equities to bonds and cash as the child approaches 18. This is conservative by design and reduces volatility in the final few years — sensible for a child who will access the money immediately at 18. However, if your plan is for the child to leave the money invested beyond 18 (transferring to an adult ISA), this automatic de-risking may reduce long-term growth unnecessarily.

A JISA gives you full control. You can choose to de-risk manually if and when it makes sense, or keep the full equity weighting if the money is earmarked for long-term investment.

Part 3: The transfer process — step by step

Transferring a CTF to a JISA is straightforward and typically takes 4–8 weeks. Crucially, you approach the receiving JISA provider, not the existing CTF provider.

Step 1: Choose your JISA provider

Research Junior Stocks & Shares ISA or Junior Cash ISA providers. Consider:

• Platform charge (annual fee on portfolio value).
• Fund charges (OCF — Ongoing Charges Figure — of the chosen fund).
• Minimum contribution (some platforms require £25–£50/month or a lump-sum minimum).
• Interface and ease of use — you will manage this account for up to 18 years.

Well-regarded JISA providers in 2026 include Vanguard (low charges, index fund focus), AJ Bell, Hargreaves Lansdown (wider choice, higher fees), Fidelity, and Wealthify (managed portfolios). For purely cash, many building societies offer competitive Junior Cash ISA rates.

Step 2: Open the JISA account

Open a Junior ISA account in the child's name with the new provider. You will need:

• The child's full name, date of birth, and National Insurance number (or if not yet allocated, a placeholder process is available).
• Your own identity details as parent or guardian.
• The child's address.

Most providers offer online application; some require post. Allow 1–2 business days for account setup.

Step 3: Complete the CTF transfer form

Once the JISA is open, request a CTF transfer form from the new JISA provider (not the CTF provider). The form typically asks for:

• The child's CTF account number and existing CTF provider name.
• Whether you want a full or partial transfer (most families do a full transfer).
• Your instruction to close the CTF and move all funds.

The JISA provider submits this to the CTF provider on your behalf. You do not normally need to contact the CTF provider yourself.

Step 4: Wait for completion

The CTF provider is required to complete the transfer within 30 business days under ISA regulations. In practice, most transfers complete in 2–4 weeks for cash and 4–8 weeks if the CTF holds investments that need to be sold and re-purchased.

The money does not pass through your bank account — it moves directly between providers. During the transfer period, it may not be invested (a brief period "in transit") but it remains the child's money.

Step 5: Confirm and set up contributions

Once the transfer completes, confirm the balance has arrived correctly at the new JISA provider. You can then set up regular monthly contributions or make lump-sum top-ups at any time, up to the £9,000 annual cap (from 6 April to 5 April each tax year).

Part 4: How to find a lost Child Trust Fund

A significant number of CTF accounts are "lost" — the original family has moved house, the account paperwork has been misplaced, or the young person simply does not know the provider.

HMRC estimates hundreds of thousands of CTF accounts remain unclaimed. If you are unsure where a CTF is held, use the government's trace service:

1. Go to gov.uk/child-trust-funds and log in with a Government Gateway account.
2. Fill in the online form — HMRC will match the child's details against their records and return the name of the CTF provider.
3. Alternatively, call the HMRC CTF helpline on 0300 123 4500.
4. Once you have the provider name, contact them with the child's details. They will ask for proof of identity (passport or driving licence of the parent/guardian).

The tracing process is free and typically returns a result within a few days online or up to a week by post.

Part 5: Maximising the Junior ISA allowance

The £9,000 annual JISA allowance runs from 6 April to 5 April each year. It cannot be carried forward — unused allowance is lost. Here is how to make the most of it.

Regular monthly contributions

Drip-feeding monthly is the most manageable approach and has the benefit of pound-cost averaging — buying more units when prices are lower and fewer when prices are higher.

Example: £100/month into a Junior Stocks & Shares ISA from birth

Assume a 6% average annual return (net of charges, nominal):

• After 5 years: approximately £7,000
• After 10 years: approximately £16,400
• After 18 years: approximately £37,000

If the family increases contributions to £200/month, the 18-year figure rises to approximately £74,000.

One-off top-ups from gifts

Grandparent gifts, birthday money, and windfalls can be paid directly into a JISA by the registered contact (the parent). There is no limit on who can contribute — only the £9,000 annual cap applies in total.

From an inheritance tax (IHT) perspective, contributions to a JISA count as lifetime gifts. Within the donor's £3,000 annual gift allowance, they are immediately outside the estate. Regular gifts out of surplus income are also immediately exempt if properly documented. Any gifts above these limits start a 7-year clock for IHT purposes.

Maximising in the final years before 18

As the child approaches 18, consider whether to continue with equities or begin de-risking. If the money is going to be spent shortly after 18 (university costs, driving lessons, flat deposit), a shift toward a Junior Cash ISA or a money market fund within the S&S ISA reduces the risk of a market fall just before the money is needed.

If the plan is for the 18-year-old to roll everything into an adult ISA for long-term investment, de-risking is less urgent.

Part 6: What happens when the child turns 18?

At 18, the Junior ISA automatically converts to a standard adult ISA in the young person's name. They gain full control — the registered contact (parent) loses access.

For the young adult, this is a moment of important financial choices:

Option 1: Leave the ISA intact

The ISA continues under the same provider and retains its tax-free status. The former JISA wrapper is now simply an adult ISA. No action is required. Future contributions count against the standard £20,000 annual ISA allowance.

Option 2: Transfer to a different adult ISA

The 18-year-old can transfer to any adult ISA provider. This is a normal ISA transfer — no allowance is consumed, and the process is straightforward.

Option 3: Use the CTF maturity ISA exemption (if transferring from a CTF)

If the child had a CTF (not a JISA) — either because they were born before January 2011 or because the JISA transfer was never completed — there is a special rule at maturity: the full CTF balance can be transferred to an adult ISA without counting against the £20,000 annual ISA allowance.

This means in the tax year of CTF maturity, the 18-year-old could:

• Transfer their entire CTF balance (e.g. £5,000) → adult ISA (exempt from the £20,000 limit).
• Plus contribute a fresh £20,000 to a different adult ISA.
• Total sheltered in one year: up to £25,000 (or more, depending on CTF balance).

This is a one-time opportunity. It does not apply to a JISA converting to an adult ISA (JISA conversion is already treated outside the standard allowance at conversion). But for any young person holding a legacy CTF on their 18th birthday, it is an exceptionally valuable feature.

Option 4: Withdraw to a bank account

The 18-year-old can withdraw some or all of the balance to a current account. There is no tax to pay on withdrawal — all growth inside the ISA (or CTF) has been tax-free. However, once withdrawn and reinvested outside a tax wrapper, future gains become subject to capital gains tax (above the £3,000 annual exempt amount in 2026/27) and income tax on dividends and interest above personal allowances.

The general advice is to withdraw only what you need immediately, and keep the rest invested inside the ISA.

Part 7: How much could it be worth?

To illustrate the long-run difference between an unreformed legacy CTF and a modern low-cost JISA, consider the following scenarios for a child born in 2026 with £100/month contributed until 18:

The difference between the legacy invested CTF and the modern ultra-low cost JISA is approximately £10,000 on £100/month contributions — purely from the charge differential compounding over 18 years.

Common mistakes to avoid

1. Withdrawing from the CTF before transferring to a JISA. If you withdraw from a CTF and then pay the money into a JISA, the JISA contribution counts against the £9,000 annual allowance. If you transfer directly provider-to-provider, it does not. Always transfer rather than withdraw-and-reinvest.

2. Assuming the CTF is performing well without checking. Legacy CTF stakeholder accounts often have limited reporting. Log in or request a statement, then compare the actual fund and charges against what a modern JISA could offer.

3. Not updating contributions after the transfer. After a CTF-to-JISA transfer, check that any existing direct debit or standing order is updated to the new JISA provider's payment details.

4. Mixing up who can open vs who can contribute. Only a parent or legal guardian with parental responsibility can open (or receive a transfer into) a JISA. However, anyone — grandparents, aunts, uncles, family friends — can contribute money, as long as the total across all donors stays within £9,000 per tax year.

5. Failing to plan for 18. The most common outcome is that the young adult withdraws the whole balance and spends it. There is nothing legally wrong with this — it is their money — but many families find it helpful to have an explicit conversation about the ISA's purpose before the child reaches 18.

Sources

• HMRC: Child Trust Fund overview
• HMRC: Junior ISA guidance
• HMRC: CTF to JISA transfers
• gov.uk: ISA annual subscription limits
• FSCS: Savings protection
• ONS: UK household savings data