
What a Junior ISA is, how much you can put in, and the choice most parents get wrong.
If you have ever wondered whether it is worth putting a little aside for your child’s future, a Junior ISA is usually the simplest way to do it. It is a tax-free savings or investment account that belongs to the child, and it can be opened by a parent or guardian for any child under 18 living in the UK.
How much can you put in?
The current annual limit is £9,000 per child. That is the total across all contributions, so grandparents, aunts and uncles can pay in too, as long as the combined amount stays within the limit. Many providers have no minimum, and even £10 or £25 a month adds up over 18 years.
Cash or stocks and shares?
This is the choice that matters most. A cash Junior ISA pays interest, and the balance cannot fall. A stocks and shares Junior ISA is invested in funds or shares, so it can go down as well as up. Over a period as long as 18 years, investments have historically tended to outgrow cash, but there are no guarantees, and some parents prefer the certainty of cash. A child can hold one of each, and you can transfer between them.
Who controls the money?
The parent or guardian manages the account until the child turns 16, when the child can take over its management. The money is locked away until 18, when the account becomes an adult ISA in the child’s name and they can spend it as they wish. That last point is worth thinking about: at 18, it is their money, not yours.
Watch the fees
For a stocks and shares Junior ISA, the provider’s charges make a real difference over 18 years. Look at the annual platform fee, fund charges and any dealing costs together, not just the headline figure. Independent research sites such as The Investors Centre compare what the main UK providers actually charge, which is a good way to avoid paying more than you need to.
A simple way to start
Many families start with a small monthly direct debit and ask relatives to pay in at birthdays and Christmas instead of buying another toy. It is a small habit that can leave a child with a meaningful sum at 18, and it is one of the few gifts that genuinely grows.
As with any investment, the value of a stocks and shares Junior ISA can fall as well as rise, and tax rules can change.










