Defined Benefit vs Defined Contribution Pensions Explained

A defined benefit (DB) pension — often called a final salary or career average scheme — pays a guaranteed income for the rest of your life once you retire. The amount is set by a formula, not by investment performance. Typically it is based on your salary (either your final salary or an average across your career), the number of years you were a member, and an "accrual rate" such as one-sixtieth or one-eightieth for each year of service.

For example, a scheme with a one-sixtieth accrual rate would pay one-sixtieth of your relevant salary for each year of membership. Forty years of service would therefore build to roughly two-thirds of that salary, payable every year for life. Most defined benefit pensions also increase each year to help keep pace with inflation, and many pay a reduced income to a surviving spouse or civil partner after you die.

The defining feature is that your employer — through the pension scheme — carries the investment and longevity risk. If the scheme's investments underperform, or members live longer than expected, the employer must make up the shortfall. Your promised income does not change. If a private-sector employer becomes insolvent and cannot meet its obligations, the Pension Protection Fund provides a safety net that pays compensation, typically covering most of the promised pension.

A defined contribution (DC) pension works very differently. Instead of promising a set income, it builds up a pot of money. You and usually your employer pay in contributions, those contributions are invested, and the pot grows or falls with the performance of those investments. The eventual value depends on how much was paid in, how long it was invested, the returns achieved, and the charges deducted.

When you reach retirement — currently from age 55, rising to 57 from April 2028 — you decide how to use the pot. You might take a flexible income through drawdown, buy a guaranteed income through an annuity, take lump sums, or combine these approaches. Usually up to 25% can be taken as tax-free cash, subject to an overall cap.

With a defined contribution pension, you carry the investment risk and the responsibility for making the money last. That brings flexibility and control, and the pot can usually be passed on to your beneficiaries, but it also means there is no guarantee about the income it will ultimately provide. Workplace pensions set up under automatic enrolment, personal pensions and self-invested personal pensions (SIPPs) are all defined contribution arrangements.

The clearest way to think about the two is in terms of certainty versus flexibility. A defined benefit pension offers a predictable, inflation-linked income that you cannot outlive, with very little for you to manage — but little flexibility to vary it or pass on a remaining "pot", because there is no pot, only an income promise. A defined contribution pension offers control, flexibility and the ability to leave money to your family, but the income is not guaranteed and depends on investment outcomes and the decisions you make.

Neither type is inherently better. Many people in their 50s and 60s value having a defined benefit pension as a secure foundation, then use defined contribution savings for flexibility on top. The right balance depends entirely on your circumstances, your other income, and how much certainty you want.

It is sometimes possible to transfer a defined benefit pension into a defined contribution arrangement in exchange for a one-off sum known as a cash equivalent transfer value (CETV). Doing so converts a guaranteed lifelong income into an invested pot — gaining flexibility and the potential to pass money on, but giving up the security, inflation protection and survivor benefits the scheme provided.

This is one of the most significant and irreversible financial decisions a person can make, and for most people keeping a defined benefit pension is likely to be the right outcome. The rules reflect this. Where the transfer value of safeguarded benefits is more than £30,000, you are legally required to take regulated financial advice before transferring. Even below that threshold, taking advice first is strongly recommended.

A regulated adviser will weigh the value of the guarantees you would give up against the transfer value offered and your wider circumstances. The starting assumption in the regulations is that a transfer is unlikely to be suitable, and it should only proceed where it can be clearly shown to be in your interests.

Both types of pension benefit from tax relief on contributions, and both count towards the pension annual allowance, which is £60,000 for the 2026/27 tax year for most people. The way usage is measured differs: for defined contribution it is simply the total paid in, while for defined benefit it is based on the increase in the value of your promised benefits over the year. Income from both is taxable when you draw it, in the same way as other income, although up to 25% tax-free cash is generally available.