ISA vs pension — which should I use?
Both are powerful tax wrappers, but they serve different purposes. ISAs offer total flexibility with no age restrictions or withdrawal rules. Pensions give upfront tax relief and are built for retirement income, with a 25% tax-free lump sum but stricter access rules until age 55 (rising to 57 in 2028).
Key differences at a glance
- Pension: immediate tax relief at your marginal rate
- ISA: no relief on the way in, but completely tax-free growth and withdrawals
- Access: ISA any time; pension generally from age 55/57
- Best use: use both — max pension for tax relief, ISA for flexibility
Key takeaway: For most people the winning strategy is to use both wrappers together rather than choosing one over the other.
Arken shows your combined ISA and pension picture in one dashboard so you can optimise how you use each wrapper.
