Starting a Pension at 20: How Much Should You Save?
Starting a pension at 20? Find out how much to save, what type of pension to choose, projected pot sizes, and how to maximise tax relief at this age.
10 min readUpdated April 2026
Starting a Pension at 20: Your Complete Guide
Starting a pension at 20 is one of the smartest financial decisions you can make. Thanks to compound growth, even modest contributions now will grow significantly over 47 years to retirement.
How Much Should You Save at 20?
A common guideline is to save half your age as a percentage of salary. At 20, that means saving 10% of your income into a pension. For the auto-enrolment minimum of 8% (5% employee, 3% employer), this may not be enough for a comfortable retirement.
Projection: Starting at 20 with £200/month (including tax relief), growing at 5% per year, your pot at 67 would be approximately £452,856. At £400/month, it would be approximately £905,712.
Which Pension Should You Choose?
If you are employed, your workplace pension is the obvious starting point — your employer must contribute at least 3%. If self-employed, consider a SIPP for maximum investment flexibility or a personal pension for simplicity.
Tax Relief at 20
Every pension contribution receives tax relief. As a basic rate taxpayer, a £100 contribution only costs you £80. Higher rate taxpayers save even more — £100 costs just £60. This instant return makes pensions one of the most tax-efficient savings vehicles available.
Common Mistakes When Starting at 20
Only contributing the auto-enrolment minimum and assuming it is enough
Staying in the default fund without checking if it suits your risk profile and timeline
Not increasing contributions when you get pay rises
Ignoring employer matching — some employers match contributions above the minimum
Cashing in old pensions from previous jobs rather than consolidating them
Frequently Asked Questions
This guide covers the key aspects of starting a pension at 20. The answer depends on your specific circumstances, but the information above provides comprehensive guidance.
For significant pension decisions, professional advice from an FCA-regulated adviser is recommended. The cost is typically recovered through better tax planning and investment strategies.
Initial pension advice typically costs £500-£3,000 depending on the complexity. Ongoing management is usually 0.5-1% per year. Through PensionHelper, our matching service is free.
The annual allowance for pension contributions is £60,000 for the 2025/26 tax year (or 100% of your earnings, whichever is lower). Higher earners may face a tapered allowance.
Basic rate taxpayers get 20% relief automatically. Higher rate (40%) and additional rate (45%) taxpayers claim extra relief through Self Assessment. Salary sacrifice saves National Insurance too.
Currently from age 55, rising to 57 from April 2028. You can take 25% tax-free and access the rest through drawdown, annuity, or lump sum withdrawals.
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