Pension Bible
Drawdown & annuities · Beginner guide

What is an annuity? UK pension annuities explained.

An annuity is one way to turn a defined contribution pension pot into retirement income. This beginner guide explains the meaning, main types, tax treatment, death-benefit choices and drawdown comparison.

By Pension Bible editorial team·Last reviewed 14 May 2026·6 min read
TL;DR
  • A pension annuity converts some or all of a defined contribution pension pot into a retirement income paid by an insurance company.
  • A lifetime annuity is designed to pay income for life. A fixed-term annuity pays for a set period, so the terms matter.
  • The starting income depends on age, health, postcode, pot size, market rates and the options chosen, such as joint-life cover, inflation-linking and guarantee periods.
  • An annuity is usually difficult or impossible to unwind after the cooling-off period. This guide is educational, not a recommendation to buy an annuity or choose drawdown.

Direct answer: annuity meaning

An annuity is a retirement income product. With a pension annuity, you use some or all of a defined contribution pension pot to buy an income from an insurance company.

The most common version is a lifetime annuity, which is designed to pay an income for the rest of your life. In exchange, the part of the pension pot used to buy the annuity is normally handed over permanently to the insurer.

That is the basic trade-off: an annuity can provide predictable income, but it usually reduces flexibility and access to the capital used to buy it.

How a pension annuity works

The process is usually:

  1. You decide how much of your pension pot to use.
  2. You choose the annuity shape, such as single-life, joint-life, level or escalating.
  3. Providers quote an income based on your age, health, postcode, pot size, market rates and chosen options.
  4. If you proceed, the insurer pays the agreed income, usually monthly.

You do not normally have to buy an annuity from your existing pension provider. The open market option lets you compare providers, and MoneyHelper offers a government-backed annuity comparison service.

The annuity calculator can show illustrative income from different annuity types. The annuity rates UK guide shows current published examples, not personalised quotes.

Lifetime annuity vs fixed-term annuity

Lifetime annuity: pays an income for life. This is the type most people mean when they talk about a pension annuity. It provides longevity protection because the income continues if you live longer than expected.

Fixed-term annuity: pays an income for a set number of years. At the end of the term, there may be a maturity amount or further options, depending on the contract. It is not the same as a lifetime income promise.

The wording matters. Two products can both be called annuities while carrying different guarantees, risks and end dates.

Single-life and joint-life annuities

A single-life annuity is based on one person. It usually stops when that person dies, unless a guarantee period or value protection applies.

A joint-life annuity can continue paying some income to a spouse, civil partner or other dependant after the first person dies. Because the insurer may need to pay for longer, the starting income is usually lower than an equivalent single-life annuity.

This is not just a pricing detail. For households relying on one pension pot, survivor income can be central to the decision.

Level, escalating and RPI-linked annuities

A level annuity pays the same amount each year. It usually starts higher than an inflation-linked annuity, but inflation can reduce its spending power over time.

An escalating annuity increases by a fixed percentage each year, such as 3%.

An RPI-linked annuity can rise with inflation. It normally starts lower because the insurer is taking on the risk that future payments increase.

The choice is a trade-off between starting income and future protection. A higher first-year payment is not automatically better if inflation becomes important later.

Guarantee periods, value protection and death benefits

Annuities can include death-benefit features, but they normally reduce the starting income.

Common options include:

Without these features, a single-life lifetime annuity may stop on death even if the buyer dies soon after purchase. This is one reason the terms need careful checking before proceeding.

Is annuity income taxable?

Yes. Pension annuity payments are normally taxable as pension income. The amount of tax depends on your total taxable income in the tax year, including State Pension, other private pensions, earnings and any drawdown withdrawals.

Many people can take up to 25% of a defined contribution pension pot as tax-free cash before buying an annuity with some or all of the remaining pot. The tax-free cash rules and allowances can vary where older protections apply.

Why annuity income varies

Annuity income can vary materially between people and products. The main factors are:

Health can matter a lot. If medical or lifestyle factors reduce life expectancy, an enhanced annuity may offer a higher income than a standard quote.

Annuity vs drawdown

An annuity and drawdown are different ways to use a defined contribution pension pot in retirement.

FeatureAnnuityDrawdown
IncomeUsually predictable; lifetime annuity can pay for lifeFlexible, but not guaranteed
Capital accessPot used for the annuity is normally exchanged for incomePot remains invested and accessible
Investment riskUsually borne by the insurer for the annuitised potBorne by the pension holder
Death benefitsDepend on options chosenRemaining pot may be inherited, subject to tax rules
ReversibilityUsually difficult or impossible after cooling-off periodMore flexible, but withdrawals can trigger tax and MPAA issues

The choice is personal and can be significant. Some people compare using both: an annuity for a guaranteed income floor and drawdown for flexibility. The annuity vs drawdown guide covers the comparison in more detail.

When to learn more

If you are comparing annuity options, useful next pages are:

Things to consider
  • This guide is educational and does not recommend buying an annuity, entering drawdown, transferring a pension or choosing any provider.
  • Annuity quotes vary by age, health, postcode, spouse or partner details, options chosen and market rates on the quote date.
  • A lifetime annuity is usually difficult or impossible to unwind after the cooling-off period.
  • Annuity income is taxable as pension income. Your total tax position depends on all income in the tax year.
Key facts
  • GOV.UK describes one pension access option as buying a product that gives a guaranteed income, sometimes known as an annuity, for life. [GOV.UK]
  • MoneyHelper explains that annuity income depends on the options chosen, and that joint-life annuities often start lower because payments may continue for longer. [MoneyHelper]
  • Pension Wise is a free and impartial government service that helps people understand their defined contribution pension options. [GOV.UK]

This is factual information, not financial advice. If you are unsure how to use your pension pot, consider a free Pension Wise appointment or speak to an FCA-regulated financial adviser.