The pension mistake a 1% return can expose

How much does 1% extra return make?

Imagine you have £200,000 in a defined contribution pension and another £500 goes into it at the end of every month for 15 years. That £500 is the total reaching the pot, whether it comes from you, your employer or tax relief. You add £90,000 over the period, before growth.

At an assumed 4% annual return after charges, the pot ends at about £482,500. At 5%, it ends at about £548,200. The difference is roughly £65,700. The calculation assumes steady returns, monthly compounding and no withdrawals; it ignores inflation and tax when you eventually take the money.

Those are illustrations, not forecasts. Real returns arrive unevenly, and a better past return tells you nothing certain about the next 15 years. Nor is an extra percentage point worth taking any amount of risk for. A sharp fall just before you need the money can matter more than a handsome-looking long-term average.

Still, the arithmetic explains why looking beyond this month’s pension balance is worthwhile. The question is not, ‘Where can I find a guaranteed 5%?’ It is, ‘Am I needlessly giving up growth, paying more than I realise or saving less than I can afford?’

Are pension fees eating your returns?

Start with the less glamorous half of that question. Defined contribution pensions commonly have charges for managing investments and running the scheme. These can appear under several names, including an annual management charge, fund charge or platform fee. Your provider should explain what you pay.

A 1% annual charge on a £200,000 pot is roughly £2,000 in the first year if its value stays unchanged. It is not a one-off £2,000 bill: percentage charges continue to be taken as the pot changes. On the other hand, a cheaper option is not automatically better if it gives up something valuable or changes how your money is invested.

You cannot order an extra 1% return. You can find out what you are paying for the return you get.

Check the total cost across the pension and its investments, not just the largest figure printed on the statement. Then check any fee for switching investments or transferring. If you have old pensions from several jobs, putting them together might simplify the paperwork, but it is not an automatic saving. Older arrangements can carry guarantees, special features or exit penalties that you would lose by moving.

This is one of those jobs best done with the documents open, not from memory. Ask each provider what you pay now, what you would pay after a change and which benefits you might surrender. If one pension promises a defined benefit income, do not treat it like an investment pot with an expensive label: the promised income is the point.

Is your default pension fund still right for you?

If you never chose investments for your workplace pension, you are probably in its default arrangement. That is not evidence of a mistake. Defaults are designed to work for many savers without requiring them to become amateur fund managers.

But ‘many savers’ may not mean you. Some default strategies gradually move money towards more stable investments as your selected retirement date approaches. That can help limit the effect of a market fall when you are about to use the pot. It may fit less neatly if you intend to leave much of your pension invested and take income gradually over many years.

Log in and find three things: what the pension holds, which retirement date the provider is working towards, and how its investment approach changes as that date nears. If the account still assumes you will retire at 60 but you expect to work longer, ask how changing the date affects the investments. If you are planning to retire sooner, understand the risks before seeking more growth.

There is a trade-off, not a secret setting. Investments with greater growth potential can fall more sharply. More cautious holdings can reduce some short-term uncertainty but may deliver less growth over a long retirement. Review your position at least annually and when your plans change; switching because of last month’s headlines is not a retirement strategy.

Can paying more beat chasing returns?

Unlike investment performance, the amount paid in is something you can influence. An extra £100 a month adds £18,000 over 15 years before growth. Under the same illustrative 4% annual return used above, paid in at each month-end, it would add about £24,500 to the eventual pot. That is not a reason to neglect today’s bills; it is a reminder to check your contribution rate before spending hours comparing returns.

For the 2026/27 tax year, the standard pension annual allowance is £60,000. It covers contributions from you and your employer across defined contribution pensions, as well as the measured increase in defined benefit pensions. Tax relief on your own contributions is generally limited by your relevant earnings. The annual allowance can be lower for high earners or after you have flexibly accessed a pension; the money purchase annual allowance is £10,000 in 2026/27 where it applies.

Find out whether your employer will contribute more if you do. Do not assume the familiar automatic-enrolment minimum of 8% means 8% of your entire salary: in many schemes it is calculated on qualifying earnings, with the employer paying at least 3%. Your scheme may use different, more generous terms.

Tax relief matters too. With ‘relief at source’, paying £80 from your pocket generally puts £100 into your pension after basic-rate relief. If you pay tax above 20%, check whether you need to claim further relief from HMRC; do not assume it has appeared in the pot. Scottish income tax bands differ from those in England, Wales and Northern Ireland, so the further relief you can claim may differ too. Ask your employer whether your scheme instead uses ‘net pay’, where contributions are taken before income tax is calculated.

Money you may need sooner has a different job. In 2026/27, the UK-wide ISA allowance is £20,000, and eligible ISA interest, income and gains are tax-free. Unlike pension money, ISA savings do not depend on reaching a pension access age. That flexibility can matter if retirement is not going to happen neatly on the date printed on a statement.

For a substantial transfer, a change to a defined benefit pension or a retirement income decision, get help rather than treating an online comparison as a verdict. MoneyHelper offers guidance; if you are 50 or over with a defined contribution pension, Pension Wise can explain your options for taking it. Personal recommendations require an FCA-regulated financial adviser.

In short

One percentage point more annual return could make a large difference over 15 years, but it is not something you can guarantee. Check your pension’s total charges, investments, assumed retirement date and contributions before chasing performance. Keep the risk you take, the tax rules and when you will need the money in the same conversation.

Sources

• GOV.UK – HMRC pension rates for 2026/27; workplace pension contributions; 2026/27 ISA allowance; ISA tax treatment
• MoneyHelper – pension charges; investment options and default funds; pension transfers; pension tax relief; Pension Wise guidance