Pensions explained
Junior SIPP: How a Pension for Your Child Works
A Junior SIPP is a pension you open for a child. Your payments can receive tax relief and stay invested for decades. The child takes control at 18, but normally cannot withdraw the money until pension-access age, which may change before they reach it.
UK pension information · 2026/27
3 min read · By Pension Bible editorial team · Sources checked
Compare Junior SIPP contribution scenarios →
In this guide
Who owns and manages a Junior SIPP?
A parent or guardian opens and manages the child’s pension while they are under 18. At 18 the child takes control, but pension access restrictions still apply. Contributions are for the child’s pension, not a pot the parent can withdraw for family spending.
Providers differ in their charges, investment choices and payment arrangements. The provider source below is an example of product mechanics, not an endorsement or a claim that its service is best.
Source: HL — Junior SIPP structure.
How do payments and tax relief fit together?
On the current no-earnings relief-at-source basis, £2,880 paid in during a tax year can become £3,600 after basic tax relief. For example, £100 paid in becomes £125 credited: the extra £25 is 20% of the gross contribution, not 20% of the original payment.
That limit is not a separate allowance for each parent, grandparent or pension account. Check existing payments, the child’s eligibility and the provider’s declarations. Higher payments may have different treatment where relevant earnings exist; our child scenario tool does not model those cases.
Source: HMRC — pension contribution relief.
Does turning 18 mean the money can be withdrawn?
No. Taking control of the account and accessing the pension are different events. The normal minimum pension age is generally 55, increasing to 57 from 6 April 2028, subject to exceptions such as protected ages and qualifying ill health.
For a child, access may be decades away. Future legislation can change, so age 57 or 60 in a projection is an illustration date, not a promise of access. Withdrawal tax also needs to be considered separately.
Source: HMRC — normal minimum pension age.
Junior SIPP or Junior ISA: when can the money be used?
A Junior ISA is a different wrapper: the money belongs to the child and is normally accessible at 18. A pension is intended for retirement. Neither an appealing projected balance nor tax relief alone answers which access arrangement fits a family’s plans.
Separate money intended for education, a first home or other early-adult needs from a retirement illustration. Compare investment risks, charges, control and access rather than treating the two wrappers as interchangeable.
Use the calculator to test assumptions
Start with the actual existing pot, then enter the monthly payment before relief. Choose a stop-age and compare it with continuing until 18. Change the charge, return and inflation separately to see which assumption drives the result.
The tool shows future pounds and today’s purchasing power. It uses smooth monthly compounding, not a forecast of market performance. Negative returns are possible; tax rules and fees may change. Printing the assumptions with the result makes the comparison easier to revisit.
- Check the total charges, including any fixed or dealing costs outside the percentage model.
- Treat a bigger illustrated pot as a calculation result, not a recommendation to increase contributions.
- Check the provider’s current terms and any valuable protections before considering a transfer.