Annuities Explained: Turning a Pension Into Income

After years of paying into a pension, retirement brings a different and unfamiliar question: how do you turn that pot of money into a reliable income that lasts? One of the main answers is an annuity — a product that trades your savings for a guaranteed income you cannot outlive. Annuities fell out of fashion when the rules changed in 2015, but rising interest rates have made them attractive again. This guide explains how they work, the choices involved, and how they compare with the main alternative. This is general information, not financial advice; free guidance from Pension Wise is available to everyone aged 50 and over.

What an annuity is

An annuity is a product, usually bought from an insurer, that converts a lump sum — typically a pension pot — into a regular guaranteed income for life or for a fixed period. You hand over the capital, and in return you receive a predictable income, removing the worry of your savings running dry.

That guarantee is the core appeal. Unlike leaving your pot invested and drawing on it, an annuity gives you certainty: you know exactly what arrives each month, regardless of what markets do. For the wider context of how pensions work in the UK, see our overview of UK pensions explained, and for the State element that sits underneath it all, how to check your State Pension.

How an annuity works

The process usually unfolds like this:

1. You reach retirement with a defined contribution pension pot (such as a workplace pension or a SIPP).
2. You take any tax-free cash — normally up to 25% of the pot can be taken tax-free.
3. You use some or all of the rest to buy an annuity, choosing the type and options.
4. The insurer pays you an income, taxed as normal income, for life or a set term.

The income you are offered — the annuity rate — depends on several factors:

• The size of your pot. More capital buys more income.
• Your age. Older buyers generally get higher rates, as the income is expected to be paid for fewer years.
• Your health and lifestyle. This is widely overlooked — see enhanced annuities below.
• The options you add, such as inflation protection or a spouse's pension, each of which lowers the starting income.
• Interest rates at the time of purchase, which is why timing affects what you get.

An annuity is one of the few financial decisions that is usually irreversible. Once bought, you generally cannot change your mind — which is exactly why it is worth taking time and free guidance before committing.

The main types of annuity

Annuities come in several forms, and the right one depends on what you value.

• Lifetime annuity. Pays an income for the rest of your life, however long that is. The classic "income you cannot outlive."
• Fixed-term annuity. Pays for a set number of years rather than for life, sometimes returning a lump sum at the end.
• Level vs escalating. A level annuity pays the same amount every year; an escalating one rises each year (for example with inflation), starting lower but protecting your purchasing power over time.
• Single vs joint life. A single-life annuity stops when you die; a joint-life annuity continues paying a percentage to your spouse or partner afterwards.
• Enhanced (impaired-life) annuity. Pays more if you have health conditions or lifestyle factors — such as smoking, high blood pressure or diabetes — that may reduce life expectancy.

That last point is important enough to repeat: always disclose health and lifestyle details honestly when getting quotes. Many people assume poor health is irrelevant to a pension decision, when in fact it can meaningfully increase the income offered.

Why shopping around matters

You are not obliged to buy an annuity from your existing pension provider. This is called the open market option, and using it can make a real difference, because rates vary significantly between insurers. Accepting the first offer from your current provider without comparing is one of the most common — and costliest — retirement mistakes.

Before buying, it is worth:

• Getting several quotes across providers, including for enhanced annuities if relevant.
• Deciding which options you actually need — inflation protection and a spouse's pension cost income now but provide security later.
• Checking the provider is authorised by the Financial Conduct Authority.
• Taking free guidance from Pension Wise, a government-backed service offering free appointments to help you understand your options.

Annuity vs drawdown

Since 2015, you have not had to buy an annuity at all. The main alternative is pension drawdown, where you leave the pot invested and withdraw from it as needed. The trade-off is fundamental:

Neither is universally "better." An annuity suits those who value certainty and want to remove risk; drawdown suits those who want flexibility and are comfortable managing investments — and the possibility of poor years. Many people sensibly use a mix, annuitising enough to cover essential bills and keeping the rest in drawdown for flexibility. Whichever route you lean toward, building it on top of a solid emergency fund means you are not forced to make rushed decisions when markets dip.

Get help before you commit

Because converting a pension into income is a major, often permanent decision, it is one of the clearest cases for taking advice. Pension Wise (via MoneyHelper) offers free, impartial guidance to anyone aged 50 and over with a defined contribution pension. For tailored recommendations, a regulated financial adviser can assess your full circumstances. MoneyHelper and the FCA also publish consumer information on annuities and avoiding scams.

The bottom line

An annuity turns your pension savings into a guaranteed income you cannot outlive — valuable certainty in retirement, especially now that rates have improved. The income depends on your pot, age, health, the options you choose and interest rates, so shopping around on the open market and disclosing any health conditions can raise what you receive. Weigh an annuity against the flexibility of drawdown, consider a blend of both, and because the choice is usually irreversible, take the free guidance from Pension Wise — or regulated advice — before you sign.