For every Sustainable Junior ISA that is opened, we will plant one tree. We will also plant another tree for every £4,500 lump sum you invest in your Junior ISA!
Take a look at the Sheffield Mutual forest by clicking the link below.
Sustainable Junior ISA
Save today for their tomorrow with a tax-free savings option that looks after their financial future, as well as the world they'll grow up in
- A unit-linked Junior ISA with a responsible investment focus
- Designed to grow their savings over the long-term, with the potential for higher returns than cash-based options
- Friends and family can contribute, up to the annual limit
- Opened by a parent or guardian - no tax to pay on any growth or returns
Risks to be aware of:
Our Sustainable Junior ISA is a medium to high risk investment fund, which means the value of your investments may go up or down and you could get back less than you invested.
Tax treatment depends on individual circumstances and may be subject to change in the future.
Free £25 GIFT CARD after your new policy starts...
Simply apply online quoting the promotional code: WEB22 to receive a £25 gift card after your policy starts. Terms and conditions apply
Gift card promotion T&CsProduct information
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About this policy
At Sheffield Mutual, we believe every child’s future should be full of possibility. We’re here to help you invest in their tomorrow by saving wisely today.
Our junior savings plans are built to grow alongside them, designed with integrity, trust and long-term value in mind. Whether you’re saving for education, a first car or simply to give them a head start in life, we’ll help you build something lasting; because at Sheffield Mutual, we’re here to serve you, not profit from you.
Let’s grow something amazing for them together!
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What are they?
JISAs were first introduced by the government in November 2011, as a way for parents or guardians to set up a long-term tax-free savings account for their child(ren).
There are two main types of Junior ISA:
- Cash Junior ISA – savings are held as cash and earn interest (like a bank account).
- Stocks & Shares Junior ISA – money is invested with the aim of achieving higher long-term returns.
You can only have one of each type per child, and these can be held with different providers if you wish. The total paid into all Junior ISAs cannot exceed the annual limit. Our Sustainable Junior ISA is in the Stocks & Shares category.
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Who are they for?
Any child under the age of 18 who is a UK resident can have a JISA opened for them by a parent or guardian.
Children born between 1st September 2002 and 2nd January 2011 may have a Child Trust Fund (a long-term tax-free savings account for children set up by the government). A child cannot have both a Child Trust Fund (CTF) or a JISA, however a CTF can be transferred to a JISA.
Unsure if your child has a CTF? Visit the gov.uk website for further information.
More information can also be found in our FAQs.
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Why open one?
- A long-term investment for their future – aiming to grow your child’s savings over time through a unit-linked fund that invests in a diversified range of assets selected for their positive environmental, social and governance outcomes.
- Medium to high risk fund – Could be attractive to those with a medium to high risk appetite. You could see more growth in the long-term than a cash ISA, accepting that the value of the fund could go down as well as up.
- Tax-efficient – no income or capital gains tax to pay on any growth, in line with current HMRC rules.
- Flexible contributions – by investing from as little as £10 per month or £100 lump sum, up to their annual allowance of £9,000, with the option to top up when you wish.
- A professionally managed fund – overseen by investment experts who follow a sustainable investment approach.
- A gift that keeps on giving – family and friends can add contributions too.
- Their money, their milestone – they can access the savings when they turn 18, ready to put towards whatever their future holds.
Calculator
This plan must be opened by the child's parent or guardian, this person will be known as the registered contact.
How to apply
Step one
Confirm you have read and understood our Product and Key Information
Step two
Decide how much you want to save and for how long, or transfer an existing JISA/CTF to us
Step three
Complete our straightforward online application
Step four
Confirm your details are correct and submit your application
Ready to proceed?
Other ways to apply
Apply over the phone
Need more information or prefer to apply over the phone? We're happy to go through any questions you have, as well as taking you through the application process over the phone. Either call us on 01226 741 000, or click the link below and we can call you back at a time to suit you.
Request an application pack
Want a bit more time to fill in your application? Download an application pack and send it back to us when you're ready. If you don't have access to a printer, we can send you an application in the post.
How it works
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Opening a Sustainable Junior ISA
Open a new plan using our simple online application form - which should take no longer than ten minutes to complete. Alternatively, you can apply by post or over the phone, it's up to you. The plan must be opened and operated by a 'registered contact' until the child reaches at least 16 years of age.
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How do I obtain the current value of my child's account?
Checking the current value of the account is easy, simply give us a call on 01226 741 000 and a member of the team will be able to give you an up to date valuation.
Work out the current value of the account
You can work out the value of the account by taking the number of units it currently holds and multiplying this number by the current unit price.
For example, if you hold 3,000 units and the current unit price is 176.50 pence:
• 3,000 units x 176.50 pence = 529,000 pence
• 176.50 pence divided by 100 = £5,295If you’re not sure how many units the plan currently holds, you can contact us to find out. The current unit price will be available on our website, so if you know how many units are held, you’ll be able to calculate the value of your policy 24/7.
Unit prices are calculated weekly, but this may vary.
Alternatively if you are signed up to our portal you can get an up to date value here. For access to our portal please call us or request your registration code here. -
What does unit-linked mean?
When you put money into the Sustainable Junior ISA, your money doesn’t just sit in an account, it buys ‘units’ in a carefully managed investment fund. Think of each unit as a small share of a whole fund.
- The unit value goes up and down based on how well the investments in the fund perform.
- The total value of your child’s Junior ISA grows or shrinks according to the current unit price.
- You can track the value of the fund at any time – because the unit price changes regularly as markets move.
This structure helps your child’s savings benefit from long-term growth opportunities while spreading risk across different types of investments like shares, bonds and other diversified assets chosen for their long-term growth potential rather than relying on cash interest alone.
Unit prices are calculated weekly, meaning when you pay premiums, we will normally work out the number of units we add by using the next available price after receiving your instruction (this could take up to 10 working days). We do this as it protects the integrity of the fund from any changes in the financial markets.
The maturity payment will be carried out based on prices already published on the child's 18th birthday.
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Can I make withdrawals and top up my JISA?
Junior ISAs are designed as long-term savings for a child’s future, so withdrawals aren’t allowed until the child turns 18. When the plan reaches the maturity date, the proceeds will be paid to the child and not the parent/guardian.
Once the Junior ISA is open, anyone - parents, grandparents, relatives or friends can contribute. You can choose to pay in regular amounts or one-off lump sums. It's a great way for family to give gifts that grow over time. They will just need the policy number or the child's name.
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What about charges?
We will deduct 1.10% of the value of the ISA policy fund each year to cover administration costs and expenses. The unit price you see already has the charges deducted.
Current Sustainable Junior ISA unit prices
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Date |
Unit prices |
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03/11/2025 |
125.83 |
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27/10/2025 |
125.25 |
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20/10/2025 |
122.85 |
A full archive of unit prices can be found here.
Quick facts - Sustainable Junior ISA
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Feature |
Details |
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Type |
Stocks & Shares Junior ISA (unit-linked). |
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Annual Limit |
£9,000 per tax year (2025/26 tax year). |
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Who can open |
Parent or legal guardian for a child, or the child themselves if aged 16+ but under 18. |
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Who can pay in |
Anyone – parents, grandparents, friends (for inheritance tax purposes contributions are treated the same way as a gift). |
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Risk |
Medium to high risk investment fund. Value can go down as well as up – could get back less than invested. |
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Access |
The child can take control at 16, but can’t access until 18. |
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Tax Treatment |
No income tax or capital gains tax on returns. Tax treatment can depend on individual circumstances and may be subject to change in the future. |
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Investment Approach |
Responsible investment aligned with UN Sustainable Development Goals and the fund has been awarded the FCA’s Sustainable Mixed Goals™ label. |
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Maturity |
The policy will rollover into an Adult Sustainable ISA at age 18 or they can decide whether to take the funds or reinvest in one of our other products. |
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Charges |
1.10% - this is deducted from the unit price before it is published. |
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Environmental Focus |
We plant a tree for each policy that is opened and another for every £4,500 lump sum invested. |
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FSCS Protection |
Classed as long-term insurance, meaning it is covered under the FSCS to 100%. |
Frequently asked questions
Our most commonly asked questions surrounding the Sustainable Junior ISA can be found below.
Our Sustainable Junior ISA’s underlying fund is aligned to the United Nations Sustainable Development Goals (SDGs) – a set of global objectives designed to tackle the most pressing challenges facing the world, such as climate action, clean energy and social equality.
This alignment doesn’t mean the fund sacrifices potential returns – it still aims for steady long-term growth – but it does ensure investments are made with a wider responsibility in mind.
For more information visit the United Nations website: sdgs.un.org
Our Sustainable Junior ISA invests in a unit-linked, medium to high risk fund. Please make sure you’re comfortable with this level of risk before investing.
The underlying fund has been awarded the FCA’s Sustainable Mixed Goals™ label, which recognises that it meets strict sustainability standards which are focused upon environmental and social outcomes and improvements over time. This means the fund aims to invest in a wide range of assets that support a better society and healthier environment, with transparency and no misleading claims.
Your money will be invested in a collection of different funds within one overall fund. This gives access to a diverse mix of companies, and asset types such as equities, corporate bonds, government gilts, and cash. This diversified approach helps manage risk and aims for more consistent returns, although the value of your investment can still go down and you may get back less than you invested.
Key Sustainability Credentials
- FCA recognised: Sustainability Mixed Goals™ label
- Net zero aligned: Committed to reducing carbon footprint
- PRI signatory: Follows Principles for Responsible Investment
- Diverse holdings: Equities, bonds and cash
- Actively managed: Asset mix adjusted for market conditions
- Fund of funds: Access to multiple managers & strategies in one investment
The fund is net zero aligned and signed up to the Principles for Responsible Investment (PRI). It is actively managed, with the investment managers selecting individual holdings and adjusting the asset mix to suit market conditions, aiming to maximise returns while staying true to its sustainability objectives.
For more information visit the FCA’s website: fca.org.uk/consumers/sustainable-investment-labels-greenwashing
Yes. You can stop, restart, pause, increase or lower your payments at any time. The money already invested will remain in the Junior ISA until the child reaches 18, unless it is transferred to another Junior ISA.
No. Junior ISAs are designed as long-term savings for a child’s future, so withdrawals aren’t allowed until the child turns 18.
Yes, you can cancel, and if you do so within 30 days of the policy start date, you will receive a refund of your payments subject to a deduction/increase of the amount (if any) by which the value of your investment has fallen/risen at the time when your Cancellation Form is received and processed. This can take up to 10 working days.
The Junior ISA will mature on their 18th birthday when they can choose what to do with the money. They can either take the money, reinvest, or if we do not receive instructions, it will be rolled over into an Adult Sustainable ISA in their name.
Yes. We accept transfers from other providers, whether they are cash or Stocks & Shares Junior ISAs. You’ll need to complete a transfer form, and we’ll arrange the switch directly with your current provider.
You can also transfer your existing Sheffield Mutual Investment Junior ISA to our Sustainable Junior ISA if you wish.
Yes. If your child has a Child Trust Fund, you can transfer it into a Junior ISA with us. You’ll need to complete a transfer form, and the full balance must be moved - partial transfers aren’t allowed.
If the child moves outside the UK, they can still hold their Junior ISA, contributions can still continue to be made.
In the unfortunate event that the child dies, the Junior ISA will close, and the savings will form part of their estate.
If the child is diagnosed with a terminal illness, HMRC rules may allow access to the money before they turn 18.
Should either of the above happen, we will pay the policy value plus 1% to the child’s estate or personal representative.
There’s no penalty for stopping or reducing payments. The Junior ISA will stay open, and the value will continue to change depending on the performance of the underlying fund.
All investment growth within a Junior ISA is free from income tax and capital gains tax.
Tax rules may change, and the value of any tax benefits depends on individual circumstances.
Jargon Buster
Need help with some of the language we've used? Click here for our Jargon Buster.
A tax-free Individual Savings Account (ISA) for children under 18 (Junior) that earns interest. Lower risk, but likely lower returns over the long term.
A tax-free ISA for children which invests in funds, equities, and other assets.
Environmental, Social and Governance factors used to assess sustainable investing.
Awarded by the FCA to UK investment funds which integrate at least two sustainability approaches.
A group of goals that universally apply to all countries that are mobilising efforts to end all forms of poverty, fight inequalities and tackle climate change.
Balancing financial goals with positive social and environmental outcomes.
Your money is pooled with other investors and used to buy “units” in a fund that holds a wide mix of investments.
Help & Support See all help & support articles
We are here for you at all stages of your journey; our support articles cover a wide variety of topics and are designed to put you in control of your money.
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Who we are
At Sheffield Mutual, we've been helping people make the most of their money for over 130 years. As a member-owned mutual, we're proud to offer exceptional personal service. Whether you're planning for the years ahead or simply looking for a reliable home for your money, with Sheffield Mutual, you can trust your savings are working hard for you - backed by a team who truly care.