2029 Pension Changes Confirmed
Find out how the new NI rules will affect your retirement pot
Pension Calculator (UK)Model Your Pension Growth
This calculator models how a pension may grow over time. It does not show how pension income is taxed or drawn in retirement. Enter your income and monthly contribution to project your future pot.
Pension Settings
Configure your pension contributions and expected returns
How Your Pension Could Grow Over Time
Watch your savings grow from contributions and investment returns (in today's money)
- Growth Range
- Most Likely Value
What This Costs You Each Month
How your take-home pay changes with pension savings
Your take-home pay increases by
£40
per month
Your Pension Snapshot
What you could have when you retire
Your pension pot at retirement
£199,873
Most likely outcome
Free money from tax relief
£46,320
Government bonus over 16 years
If investments underperform
£160,132
Lower growth scenario
If investments do really well
£251,901
Higher growth scenario
Assumptions & Notes
Save to Your Financial Plan
Your saved details will pre-fill other calculators automatically so you do not have to re-key information and can access your saved calculations at any time.
Calculations use 2025–26 tax rates and assume standard personal allowance. This tool is for guidance only.
What's Next?
Retirement Savings Hub
Explore guides, calculators, and strategies for building your retirement pot
Read GuideHow Pension Tax Relief Really Works
Understand how tax relief boosts your pension contributions
Read GuidePension Allowances Guide
Learn about annual and carry-forward allowances
Read GuideUK FIRE Guide
Learn how pensions, ISAs, and the State Pension bridge the gap to early retirement in the UK
Read GuideFIRE Calculator
Estimate how much you need to retire early using the 25× rule and model your path to financial independence
Explore CalculatorAbout the author
Melanie Reed is a fintech and product specialist with 13+ years' experience building mortgage, investment, savings and retirement tools at companies including Aviva, Lendinvest, Money Advice Trust and Luno. She develops calculators and content that simplify complex UK financial decisions, covering pensions, mortgages, tax-efficiency and long-term savings.
Frequently Asked Questions
Common questions about pension calculators
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Our pension calculator shows how much you could have in retirement – and how a little extra now can make a huge difference later.
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