Is this ISA vs pension calculator tax advice?

No. It is an educational model. Pension and ISA rules depend on personal circumstances, tax bands and future rules.

Why does the pension result include uplift?

The uplift field models the impact of tax relief or employer contribution support in a simplified way.

Which is better, ISA or pension?

Neither is always better. Pensions can be powerful for retirement tax relief, while ISAs can be more flexible before retirement age.

UK comparison calculator

ISA vs Pension Savings Calculator

Compare a simplified Stocks and Shares ISA path with a pension path using monthly contributions, assumed growth and a pension uplift. This fills the UK comparison gap without pretending tax rules are simple.

Important: this is an educational comparison only. It does not model every tax band, pension rule, allowance, fee or withdrawal rule.

Monthly contribution from take-home payStarting balanceAnnual return (%)

YearsPension uplift (%)

Estimated ISA value

£ —

Estimated pension value

£ —

Estimated pension advantage before withdrawal rules: £ —

How to read this comparison

ISA flexibilityISA savings may be accessible earlier, depending on account type and platform rules.

Pension upliftPensions can receive tax relief or employer contributions, but access is restricted.

Same growth assumptionThe calculator keeps return and timeline equal so the contribution structure is easier to compare.

Related UK and retirement pages

Retirement compound calculatorEstimate long-term retirement growth.FI calculatorModel time to a financial independence target.Growth vs inflationCheck whether nominal growth keeps purchasing power.

FAQ

Is an ISA or pension better?

It depends on tax treatment, flexibility needs, retirement age, employer contributions and future withdrawal rules.

Why include a pension uplift?

The uplift is a simplified way to model tax relief or employer contribution support.

Does this model pension tax on withdrawal?

No. Keep this page as a first-pass comparison, not personal tax advice.