⚡ Quick Answer
A defined contribution (DC) pension builds up a pot from contributions (yours, your employer’s, and tax relief from HMRC) invested in funds that grow over time. The final pot size depends on contributions, investment performance, and charges — not a predetermined benefit. From age 57, you can take 25% of the pot as a tax-free lump sum (up to the £268,275 Lump Sum Allowance). The remaining 75% is taxable income when withdrawn, either through drawdown (flexible withdrawals) or an annuity (guaranteed income for life).
Most workplace pensions set up since the mid-1990s are defined contribution pensions. Understanding how the pot builds up, how investment decisions affect it, and how you eventually access it is fundamental knowledge for anyone saving for retirement.
How the Pot Builds Up
Money flows into your DC pension from three sources:
- Your employee contributions — deducted from your pay (often through salary sacrifice, which also saves NI)
- Your employer’s contributions — typically at least 3% of qualifying earnings
- Tax relief from HMRC — the government adds back the income tax on contributions: 20% basic-rate automatically, 40% reclaimed by higher-rate taxpayers through Self Assessment
These contributions are invested in funds — typically a range of options you choose, or a default “lifestyle” fund if you don’t make an active selection.
Investment Choices and Default Funds
Most DC pensions offer a range of funds: global equity funds, UK equity funds, bond funds, diversified multi-asset funds. If you don’t choose, the default fund is used — typically a “lifestyle” or “target date” fund that automatically shifts toward lower-risk investments as you approach retirement.
Default funds are designed to be suitable for most members. However, they’re not always optimal — particularly the automatic switch to bonds and cash in the years before retirement, which can remove growth potential from a pot that may still need to grow for 20-30 years in retirement. Reviewing and understanding your pension fund choice is worthwhile.
Tax-Free Lump Sum
From age 57 (rising from 55 in April 2028), you can take up to 25% of your DC pension pot as a tax-free lump sum, subject to the Lump Sum Allowance of £268,275. Amounts above this are taxed as income when taken.
The remaining 75% is taken as taxable income — through drawdown (flexible, invested) or an annuity (guaranteed income for life). Income tax applies at your marginal rate in retirement.
Drawdown vs Annuity
Drawdown keeps the pension pot invested while you take flexible withdrawals. Returns vary with markets; you bear the longevity risk (pot might run out if you live longer than expected). Annuity provides guaranteed income for life — typically higher income than drawdown for the same pot size in the early years, but fixed and inflexible.
Our dedicated article on drawdown vs annuity covers the decision in full detail, including when current high annuity rates make a strong case for annuitisation.
Frequently Asked Questions
What’s the difference between defined contribution and defined benefit pensions?
Defined benefit (DB/final salary) pensions provide a guaranteed income based on salary and years of service — the employer bears the investment risk. Defined contribution pensions don’t guarantee an outcome — the pot size depends on contributions and investment performance. DB pensions are increasingly rare in the private sector.
What happens to my DC pension if I die before taking it?
DC pensions typically fall outside your estate for IHT purposes (though this is changing from April 2027). Death benefits before age 75 can generally be passed to nominated beneficiaries tax-free. After age 75, benefits are taxable as income for the recipient. Complete an Expression of Wishes form with your pension provider to nominate beneficiaries.
For impartial pension guidance, MoneyHelper’s pension basics is thorough and independent.
