Giving Your Child a Head Start: Guide to Junior ISAs in 2024/25
By James Potter

Every parent dreams of setting their child up for success, and what better way to give them a head start than with a nest egg when they reach adulthood? Whether it’s helping with university costs, funding character-building travel, or even boosting them onto the property ladder, a Junior ISA (JISA) could be the perfect way to make your financial planning simpler and more effective.
The Power of Junior ISAs: Tax-Free Savings for Your Little One
Junior ISAs (or JISAs as they’re often called) let you build a tax-free savings or investment pot for your child that could grow significantly over time—without affecting your own ISA allowance.
Each child in the UK can have their own JISA, and parents, grandparents, or other family members can contribute up to the annual allowance of £9,000 tax-free (for the 2024/25 tax year).
Think of it as the ultimate long-term savings plan. A pot of £9,000 every year could mean an impressive £162,000 saved by the time your child turns 18—excluding growth from interest or investments. The earlier you start, the more time you give their savings to grow, thanks to the magic of compound interest. However, it’s important to note that investments can go down as well as up, and you may get back less than you invest.
What’s the Junior ISA Allowance for 2024/25?
For the 2024/25 tax year, your child can save or invest up to £9,000 tax-free in their Junior ISA. That’s a substantial allowance that can make a big difference over the years. Even small, regular contributions can compound into something remarkable—especially if you start early.
Hypothetically, investing just £100 per month from birth could result in around £30,522 by their 18th birthday, potentially giving them the perfect head start on life’s big moments. This projection varies based on market performance (assuming a net 5%pa return), so it’s essential to consider risk, but it shows the power of consistent investing.
Parents – avoid being taxed on savings for your kids, in your name
The parental settlement rules in the UK are designed to prevent parents from avoiding tax by transferring income generating assets to their minor children. Here are the main points:
- Income Attribution: If a parent gifts assets to their minor, unmarried child, any income over £100 per year from those assets is taxed as the parent’s income. This rule applies to each parent individually.
- Bare Trusts: Income and dividends over £100 from assets held in a bare trust set up by a parent for their minor child are taxed on the parent.
- Discretionary Trusts: Income from discretionary trusts is taxed on the parent until the child receives a discretionary payment.
- Interest in Possession Trusts: Income from these trusts is also taxed on the parent if the child is a life tenant.
- Non-Trust Arrangements: Direct gifts of shares or other income-generating assets to minor children are treated similarly, with the income attributed to the parent for tax purposes.
These rules ensure that parents cannot use their children to reduce their own tax liabilities. If you have any specific scenarios or further questions, feel free to ask.
Junior ISAs vs. Child Trust Funds: What’s the Difference?
Still holding on to a Child Trust Fund (CTF)? You’re not alone—CTFs were automatically opened for any child born between 1st September 2002 and 2nd January 2011. However, they’ve now been replaced by Junior ISAs, and you can’t have both open simultaneously. You can transfer a CTF into a JISA, but be sure to move the entire amount as partial transfers aren’t allowed.
Two Ways to Save: Cash or Stocks and Shares?
There are two types of Junior ISAs you can choose from:
- Junior Cash ISA: A straightforward savings account with tax-free interest. It’s low risk but typically offers lower returns. It is not risk free however, as inflation will erode the interest achieved. Cash would be preferable for shorter investment timescales e.g. your child requires the entire pot for an expenditure in 3-5 years.
- Junior Stocks and Shares ISA: For the little investor in your life. This option involves investing the money, which could mean higher returns over the long term but comes with the ups and downs of the market. This provides the better return potential and ideally invested for longer than five years, to avoid short term investment volatility.
You can open both types and split the £9,000 allowance between them however you like—50/50, 90/10, or any ratio that suits your financial strategy.
The Best Time to Start? Now!
The earlier you start, the better. Starting your child’s JISA from birth maximizes the impact of compound interest, turning small contributions into substantial sums. With Junior ISAs, every pound saved today is a potential game-changer for your child’s tomorrow.
Final Thoughts: Invest in Their Future
Opening a Junior ISA isn’t just about money—it’s about giving your child opportunities, and to teach them the value of investing, the choices you make today can set them up for a bright future.
Ready to get started? The best time to invest in your child’s future is now. A little planning today can create a lifetime of possibilities for tomorrow.
Please be sure to check the T&Cs as in some cases JISA’s may not be beneficial; for example there have been issues for children with Special Educational Needs when looking to withdraw funds.
Remember, investment strategies should be tailored to individual circumstances, risk tolerance, and financial goals. It’s advisable to seek professional financial advice before making investment decisions.