The best junior SIPPs in 2026
Financial Interest was founded by Damien Talks Money (384,000 YouTube subscribers) to teach the personal finance lessons he wished he'd been taught at school.
Last updated 10th April 2026
4 min read
A Junior SIPP is a pension opened for a child under 18, usually by a parent or guardian. Anyone can contribute, the government adds tax relief to contributions, and the money is invested for the child's retirement. The trade-off is that the money is locked away until much later in life – currently from age 55 (rising to 57).
But not all junior SIPPs are created equal. With money invested for decades, sneaky fees can really compound. We've rounded up our top choices, focusing on low fees, investment choice and great service.
Financial Interest provides guidance, not advice. If you’re unsure about anything, speak with a qualified adviser. When investing, your capital is always at risk. Past performance does not guarantee future results.
Our top picks
| Broker | Annual fee | Trading fee | Minimum investment |
|---|---|---|---|
| Fidelity | £0 | £0 for mutual funds, £1.50 per month for ETFs and shares in a regular savings plan, £7.50 for other trades | £800 lump sum or £20 per month |
| AJ Bell | 0.25% up to £250,000, 0.10% up to £500,000. £10/month fee cap for shares and ETFs. | £1.50 for mutual funds, £5 for shares or £1.50 with monthly investments. | £500 lump sum or £25 per month |
Top picks fee breakdown
| Broker | Fi Fee* (£10k pot) | Fi Fee* (£100k pot) |
|---|---|---|
| Fidelity | £18 | £18 |
| AJ Bell | £43 | £138 |
If we were opening a Junior SIPP in the 2025/26 financial year, we'd probably go with Fidelity.
Their fees are the lowest on the market by quite some way for most investors. In fact, if you only invested in mutual funds, it'd be possible to pay nothing at all to use their JSIPP – aside from fund fees, which you'd pay wherever you invested.
AJ Bell is also a decent option – though their account fees make them significantly pricier, especially for larger balances.
One exception to this could be if you were trading shares or ETFs regularly. AJ Bell offers a frequent share dealing discount which reduces fees to £3.50 per trade, whereas Fidelity sticks at £7.50 per deal – a difference that could potentially add up, depending on how you invest and the size of your pot.
Another bonus of both Fidelity and AJ Bell is their range of investment options. You could opt for ETFs, mutual funds, shares, investment trusts, or bonds.
You can estimate Fidelity's fees via their calculator here – use their junior ISA option, but remember that the annual junior SIPP contribution limit is £2,880 (rather than £9,000 for JISAs). AJ Bell also have a similar calculator you can find here.
One potential drawback to consider is that Fidelity don't offer in-specie transfers.
This means if you want to switch providers you won't be able to move across your investments as they are, but instead would need to sell them and transfer them as cash. AJ Bell, however, does allow in-specie transfers.
Junior SIPPs cost comparison
Below are a selection of other providers that offer junior SIPPs, and how their costs stack up compared to our top picks – again, assuming you invest monthly into ETFs and don't trade actively.
| Platform | Fi Fee* (£10k pot) | Fi Fee* (£100k pot) |
|---|---|---|
| Fidelity | £18 | £18 |
| AJ Bell | £43 | £138 |
| bestinvest | £99.40 | £138 |
| Hargreaves Lansdown | £35 | £150 |
| True Potential | £114 | £1,140 |
We're unable to test every junior SIPP on the market, but we have tried our hardest to carry out most of the research you might need if you were opening one today.
Our process includes manually checking the fees of every JSIPP at every broker, as well as scrutinising terms.
