University fund: the Junior ISA is your child's money, not your contingency pot

Start with the same test as the case for the parent's ISA: no opening balance, £300 at the end of every month for 36 months, no growth or fees. £10,800 goes in either way. Identical investments or cash products with the same charges produce the same before-tax outcome inside either tax-free wrapper; neither account manufactures a higher yield.

The 2026/27 Junior ISA limit is £9,000 for the child across cash and stocks-and-shares accounts; the parent's adult ISA limit is £20,000 across their ISAs. £3,600 a year fits either if unused capacity exists. These are limits for different people, not competing interest rates.

For the basics of choosing a wrapper, consult the ISA hub and Junior ISA explainer.

GOV.UK says the money in a Junior ISA belongs to the child, though a parent or guardian with parental responsibility opens and manages it. Anyone can contribute, including relatives. The parent cannot reclaim the balance because their own finances change. This irrevocability is exactly why grandparents who intend a gift can trust the label: the money cannot quietly be repurposed to pay a parent's bills.

A parent-owned ISA can be perfectly sensible for a conditional promise; it simply remains the parent's asset. That creates a different risk: in a separation, financial emergency or death, the child cannot assume that a pot informally earmarked for them will arrive. Do not claim a Junior ISA is a universal shield from every legal or family risk either; seek tailored legal advice where estate or insolvency issues matter.

Once money is in the Junior ISA, you cannot transfer it into an adult ISA just to regain control. Make the gift only if you mean it.

A child can take over as registered contact from age 16; withdrawals are generally unavailable until 18, when the Junior ISA converts automatically to an adult ISA. At 18 they can withdraw for rent, books, travel — or something you would not choose. University is not a legal condition of access. If that is unacceptable, keep the conditional portion in your own account and say so plainly.

Begin talking about statements, fees, investing risk and the difference between tuition and living costs before the handover. Arrange small decisions while you can still discuss them. An account that transfers at 18 makes that conversation unavoidable, whereas a vaguely promised family pot can defer it indefinitely. The ISA calculator helps compare illustrative savings paths, but a three-year goal still calls for careful consideration of market losses near the date the money is needed.

A parent's £20,000 annual ISA allowance is shared with their other goals. If the parent has already committed all of it, this household's £3,600 of new savings needs another home. The child's separate £9,000 Junior allowance is capacity for the child's benefit, not a way to expand the parent's personal tax shelter.

A non-ISA account in the child's name is not always tax-equivalent: HMRC says interest from a parent's gift exceeding £100 in a tax year can be taxed on the parent, while this parental-gift rule does not apply to Junior ISAs or gifts from grandparents. Tax shelter is useful, but it is secondary here to naming the rightful owner. If the child already has a Child Trust Fund, GOV.UK says they cannot hold a Junior ISA alongside it; ask a provider about transferring the trust fund first.