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The UK retirement planning tool market is dominated by pension calculators that answer a single question: how large will my pot be? That projection is necessary, but it stops one question short of what a pre-retiree actually needs to know — whether they can afford the life they picture. This paper reviews six leading UK tools, sets out ten unmet needs in the current market, and examines the three gaps that matter most.
Key takeaways
- Most UK retirement tools project a pot size, answering only half the planning question.
- The Pensions UK (formerly PLSA) Retirement Living Standards are rarely used as a live, category-level planning engine.
- A flat 4% withdrawal rule is widely applied well beyond the roughly 30-year, US-derived context it was designed for.
- Couple and survivor income — what happens when one partner dies — is largely unmodelled, partly because it sits near the FCA advice boundary.
- Care costs and renting are excluded from standard assumptions, leaving material accuracy gaps.
What you'll find inside
A feature-by-feature review of six UK tools: MoneyHelper, Aviva, Hargreaves Lansdown, PensionBee, Standard Life and Fidelity.
Ten unmet needs in the current market, scored against a 24-point capability framework.
The three gaps that matter most — and why some persist for sound regulatory reasons.
What a genuinely lifestyle-led planning tool would do differently.
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Based on consumer-facing, publicly visible tool functionality reviewed in February 2026. The author has no commercial relationship with the providers named. This analysis grew out of independent research into a better approach to retirement planning tools.