Why starting children investing early can be one of the best financial lessons you give them

Parents naturally want to give their children a good start in life. That often means helping with education, a first car, a house deposit or perhaps leaving them an inheritance later in life. But one of the most valuable things parents and grandparents can give children is something less tangible: an understanding of how money, saving and investing actually work. Starting children investing at an early age can help with both objectives. It can build a meaningful financial asset over time, while also introducing them to concepts such as compound growth, risk, diversification and long-term thinking.

Time is an extraordinarily valuable asset

Children have something that older investors cannot buy: time. A child who begins investing at five or ten years old could potentially have 70 or 80 years of investing ahead of them. Over very long periods, compounding can have a dramatic effect. For example, £100 invested each month for 18 years amounts to £21,600 in contributions. If those investments achieved an average return of 5% a year after charges, the eventual pot would be substantially larger.

Of course, investment returns are never guaranteed, and markets will rise and fall. But the example illustrates an important lesson: starting early can matter as much as the amount invested. It is a principle children can carry with them throughout their lives.

How Junior ISAs work: a useful starting point

A Junior ISA (JISA) is one of the simplest ways to invest for a child.

For the 2026/27 tax year, up to £9,000 can be contributed to a Junior ISA, and investments can grow free from UK income tax and capital gains tax. Anyone can contribute, although the account belongs to the child. A Stocks and Shares Junior ISA can therefore provide an excellent introduction to long-term investing. Rather than simply telling a child that money has been set aside for them, parents can gradually involve them in what is happening. Why has the value fallen this month? Why does the account own lots of different companies? What are dividends? Why don’t we sell everything when markets fall?

Those conversations can be enormously valuable.

At 16, the child can take control of managing the Junior ISA, although they cannot normally withdraw the money until they reach 18. At that point, it becomes their money to use as they wish, which is something parents should take into consideration when deciding how much to contribute.

How a Junior SIPP works: an even longer-term lesson

It may sound strange to start a pension for someone who has barely started school, but a Junior SIPP can be particularly powerful because of the time available for the money to grow. Even a child with no earnings can potentially receive pension tax relief on contributions up to £3,600 gross each tax year under current pension rules. That means, broadly, a £2,880 contribution can become £3,600 after basic-rate tax relief.

Unlike a Junior ISA, however, pension money is intended for retirement and cannot simply be withdrawn at 18. That makes the two accounts complementary. A Junior ISA can provide capital for early adulthood, while a Junior SIPP could potentially remain invested for several decades.

Children can learn that investing is not gambling

One of the most useful lessons young people can learn is the difference between investing and speculation. Social media increasingly exposes younger generations to cryptocurrencies, meme stocks, trading apps and stories about people becoming rich very quickly. A modest investment portfolio provides an opportunity to demonstrate a very different approach.

Owning a diversified portfolio means participating in real businesses around the world. Some companies will perform exceptionally well, others poorly, but the objective is not to guess tomorrow’s winning share. It is to allow capital to participate in economic growth over many years.

That lesson could save a young person from some very expensive mistakes later.

Market falls become educational rather than frightening

Parents sometimes worry about showing children investments when markets are falling. In reality, downturns can provide some of the best lessons. A child who sees a portfolio fall by 10% and subsequently recover begins to understand something that many adult investors still struggle with: volatility is a normal part of investing. Regular contributions also demonstrate that falling markets are not necessarily bad news for a long-term investor, because new money purchases investments at lower prices. Experiencing several market cycles before someone reaches adulthood can create a much healthier relationship with investment risk.

Remember, when it comes to kids investing, time is their friend.

Why it encourages saving before spending

Perhaps the greatest benefit has nothing to do with investment performance. Children who grow up regularly discussing savings, investments and pensions are more likely to regard putting money aside as a normal part of life. When they eventually receive their first salary, contributing to an ISA or pension may feel natural rather than something to think about in their forties. Parents can reinforce this by encouraging children to divide birthday money, earnings or gifts between spending and saving.

The amounts don’t need to be large. The behaviour is what matters.

Why financial education is a lifelong gift for your children

Parents cannot predict what financial challenges their children will face. Property may become more expensive. Employment patterns may change. People may live longer and need to fund much longer retirements. What parents can provide is a solid foundation. Helping children understand compound growth, diversification, tax-efficient investing, pensions and the importance of starting early can influence financial decisions for the rest of their lives.

A Junior ISA or Junior SIPP therefore shouldn’t simply be viewed as an account containing money. Used properly, it can also become a practical financial classroom and one that could prove considerably more valuable than the original contributions themselves.