Pension Contribution Calculator

Want to know how much of your salary is going into your pension — and what you’ll have by retirement? Enter your contributions and we’ll show you the tax relief you’re getting and a projection of your pot.

How to use this calculator
Your details
£
Projected pension pot
£0
Monthly Annual
Your contribution
Employer contribution
Tax relief
Net cost to you
Total going into pension

Pension Contributions & Tax Relief Explained

Workplace pensions in the UK benefit from tax relief, meaning the government effectively tops up your contributions. The total minimum contribution under auto-enrolment is 8% of qualifying earnings (5% employee + 3% employer).

Salary Sacrifice vs Relief at Source

With salary sacrifice, your pension contribution is deducted before tax and NI, saving you both. With relief at source, basic rate tax relief is added automatically, but higher/additional rate taxpayers must claim the extra via Self Assessment.

Projected Pension Pot

This calculator estimates your pension pot at retirement based on your current contributions, expected investment growth rate, and years until retirement. Even small increases in contribution percentage can make a significant difference over 20–30 years due to compound growth.