Estimate a fixed periodic payout from an annuity balance over a chosen number of years.
This tool provides estimates for informational purposes only. It is not a substitute for professional advice. Individual results vary based on your inputs and assumptions, so review important decisions with a qualified professional.
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Understanding how much monthly income your pension pot or lump sum will generate through an annuity is one of the most critical calculations in retirement planning. Annuity payout rates vary enormously depending on your age, health, the type of annuity you choose, and prevailing interest rates. This comprehensive guide covers annuity payout formulas, real-world UK and US examples, the break-even analysis between lump sum and annuity, and how to compare annuity income with pension drawdown.
An annuity converts a lump sum into a series of regular payments. The payout amount depends on four main variables:
The underlying mathematics is the present value of an annuity formula: the insurer calculates how much income they can afford to pay, given the lump sum, expected investment returns, and expected longevity. They also build in a profit margin and administrative costs.
Pays income until the annuitant dies. Payments stop immediately on death — there is no payout to heirs. This is the highest-income option but provides no capital return. A 65-year-old male purchasing a £100,000 life-only level annuity in 2024 can expect approximately £6,500–£7,000/year.
Guarantees payments for a specified period (e.g. 5, 10, or 20 years) even if the annuitant dies. If the annuitant outlives the guaranteed period, payments continue for life. This is a common choice in the UK, where a 10-year guarantee period (annuity certain) provides some reassurance that contributions are not entirely lost at early death. The income is slightly lower than a pure life annuity.
Continues to pay a reduced income to the surviving spouse after the first death. Common continuation rates are 50% or 66% of the original payment. This is strongly recommended for married couples where one partner relies on the pension income. Cost: typically 10–20% less monthly income than a single life annuity, depending on the age gap and health of both partners.
If the annuitant dies before receiving total payments equal to the purchase price, the remaining balance is paid as a lump sum (cash refund) or continued as installments (installment refund) to a beneficiary. This provides capital protection but reduces monthly income.
Approximate annual income from a £100,000 single life level annuity (no inflation protection, no guarantee period):
| Age | Male (annual) | Female (annual) | Joint (50% survivor) |
|---|---|---|---|
| 60 | ~£5,600 | ~£5,300 | ~£4,800 |
| 65 | ~£6,500 | ~£6,100 | ~£5,500 |
| 70 | ~£7,800 | ~£7,300 | ~£6,700 |
| 75 | ~£9,500 | ~£8,800 | ~£8,100 |
Note: Actual rates vary by provider. Always shop the market via the open market option — the difference between the best and worst annuity rates can be 20–25% for the same product. Providers include Legal & General, Aviva, Scottish Widows, Canada Life, and Standard Life. Enhanced annuity rates (for health conditions) can be substantially higher.
The break-even age is the age at which total annuity payments received equal the original purchase price. For a 65-year-old buying a £100,000 annuity at £6,500/year:
Break-even = 65 + (£100,000 ÷ £6,500) = 65 + 15.4 = age 80.4
If you live past 80, the annuity pays more than you paid in. This is why annuities are described as "longevity insurance" — they are most valuable to those who live longer than average. Average life expectancy for a 65-year-old in England is approximately 84 (male) and 86 (female), meaning the average buyer lives 4–6 years beyond break-even.
In the United States, a common retirement annuity scenario: a 65-year-old purchasing a $200,000 immediate life annuity in 2024. Based on current rates (closely linked to 10-year Treasury yields at approximately 4–5%):
The corresponding break-even for a $200,000 annuity at $1,150/month is approximately 14.5 years — i.e., age 79.5.
US lottery jackpots (Powerball, Mega Millions) are advertised as the annuity value — the total of all payments over 30 years. The cash lump sum option is approximately 60% of the advertised amount. For a $100 million Powerball jackpot:
Most lottery winners choose the lump sum — primarily because of the time value of money (getting the money now and investing it yourself may outpace the lottery's built-in 5% annual increase) and uncertainty about future tax law changes.
A key advantage of annuities is the concept of "mortality credits." When a pool of annuitants purchases annuities, those who die early effectively subsidise those who live longer. The insurer pools longevity risk across thousands of policyholders. An individual investing their own pension pot in drawdown bears 100% of their own longevity risk — running out of money is a real possibility if they live to 95+. An annuity eliminates this risk entirely.
Since 2015 Pension Freedoms, UK retirees face a fundamental choice:
| Feature | Annuity | Drawdown |
|---|---|---|
| Income certainty | Guaranteed for life | Variable — depends on investment returns |
| Longevity risk | None (insurer carries it) | Carried by you |
| Flexibility | Low — irreversible once bought | High — adjust withdrawals any time |
| Death benefit | Limited (guarantee period or joint life) | Remaining pot passes to beneficiaries |
| Best for | Those wanting security and simplicity | Those with other income sources and investment confidence |
Many financial advisers now recommend a hybrid approach: use part of the pension pot to buy an annuity (covering essential living costs) and keep the remainder in drawdown (for flexibility and potential inheritance).
For a 65-year-old in the UK in 2024, a £100,000 single life level annuity pays approximately £6,000–£7,000/year (£500–£583/month). Joint life annuities pay less — approximately £5,500/year. Rates vary by provider — always compare via the open market option. Enhanced annuities (for health conditions) can pay significantly more.
Divide the purchase price by the annual payment, then add your age at purchase. E.g., £100,000 ÷ £6,500/year = 15.4 years; break-even at age 80.4. Living beyond break-even means you receive more than you paid in. UK average life expectancy at 65 is approximately 84–86, meaning most buyers outlive break-even.
Most US lottery winners choose the lump sum (approximately 60% of the advertised jackpot). The lump sum allows immediate access and investment flexibility. The annuity provides larger total payments over 30 years but exposes winners to future tax law changes and requires trusting the lottery's annual increase rate. Consult a financial adviser before deciding.
A joint life annuity continues paying income (typically 50% or 66% of the original amount) to a surviving spouse after the first partner dies. The initial payment is lower than a single life annuity to account for the extended payment period, but it provides crucial financial protection for couples where both depend on the pension income.
Yes. Enhanced annuities (impaired life annuities) pay higher income to people with health conditions including diabetes, heart disease, cancer, hypertension, obesity, or who smoke. Always disclose your health and lifestyle when shopping for an annuity — the best enhanced rates can be 10–30% higher than standard rates, representing significantly more income over your lifetime.
Yes. Annuity income from a pension is taxed as ordinary income through PAYE, at your marginal income tax rate. The 25% tax-free pension commencement lump sum applies to your pension pot — once you convert to an annuity, the regular payments are taxable income (above the personal allowance of £12,570 for 2024/25).
A period certain (or guarantee period) annuity pays income for at least a specified number of years — typically 5, 10, or 20 years — even if you die during that period. If you outlive the guarantee period, payments continue for your lifetime. It is useful for ensuring family members receive some benefit if you die relatively early in retirement.
Mortality credits are the implicit benefit from pooling longevity risk. When many people buy annuities, those who die early "subsidise" those who live longer — the insurer redistributes their unused payments. This is why annuities can pay more over a lifetime than self-managing drawdown, particularly for those who live into their late 80s and beyond.