Ndubuisi 'Andy' EgwimMoney Coach for Medics|Ex-NHS GP|21+ Yrs Investor| Founder, MoneyWiseDoctor.com|Helping Medics Avoid Big Money Mistakes

Make Your Child a Millionaire by 18 With This ISA!

22 Apr 2026 · 1 min

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In this segment of the YouTube video, Ndubuisi 'Andy' Egwim explains the Junior ISA (JISA) as a powerful, often overlooked savings vehicle for children under 18. He clarifies that a child cannot hold a standard adult ISA, but a Junior ISA can be opened on their behalf with a distinct £9,000 annual allowance for the 2026‑2027 tax year, separate from the adult £20,000 ISA limit. Andy provides a concrete illustration: contributing £9,000 each year into a stocks‑and‑shares Junior ISA, assuming an average 7% annual return over 18 years, could grow to roughly £327,000 by the child's 18th birthday. The total contributions would be about £162,000, with the remaining £165,000 representing tax‑free investment growth. He also cautions that actual returns can fluctuate, emphasizing the tax‑free nature of the gains.

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important. It helps give children a head start. Before we move on, there's one more type that belongs in this conversation that is often missed. The Junior ISA. You cannot open a standard adult ISA for a child under 18, but you can open a Junior ISA or JISA or JISA, whatever, on their behalf with a separate annual allowance of £9,000 per tax year for this 2026-2027 tax year. It's entirely separate from your own £20k adult ISA allowance. Here's what the numbers look like. £9,000 per taxi into a stock and shares junior ISA from Betts. Even if it was at 7% annual return over 18 years— I'm talking about average returns over time, it could go up or down— at age 18, that child has £327,000. On total contribution, that have just been about £162K. So the growth generated will be about £165K, all tax-free.