Free Money, Locked Away: Should You Pay More Into Your Workplace Pension?

Somewhere in your onboarding pack, probably between the holiday policy and the fire drill, there was a paragraph about the pension. You ticked the box, accepted the default contribution, and have not thought about it since.

That is fine. It is what most people do, and the default is deliberately designed to be adequate rather than excellent. But there is a decent chance your employer is offering something better than adequate — and that the only way to get it is to ask for it.

The bit nobody explains at induction

Under automatic enrolment, your employer must put you into a pension and pay in at least 3% of your qualifying earnings, while you pay at least 5% (some of which arrives as tax relief). That 8% total is the legal floor, not the ceiling.

Many employers go further. A common pattern is a matching formula: for every extra percent you contribute, they will add another, up to a cap. Pay 5%, they pay 5%. Pay 8%, they pay 8%. Once you hit the cap, they stop — permanently, unless the scheme changes.

Which means there is often a small band of your salary where the return on your own money is, on paper, absurdly good.

What the match looks like in numbers

Take an illustrative salary of £30,000 and an employer that matches contributions up to 6%.

At the minimum, you might be putting in 5% (around £1,500 a year, part of it via tax relief) and your employer adds 3% (£900). Raise your own contribution to 6%, and the employer's goes to 6% too. Your extra 1% — about £300 a year — pulls in roughly £900 of additional employer money that was previously sitting unclaimed.

Put another way: for basic-rate taxpayers, £100 going into a pension costs around £80 of take-home pay under relief at source, or around £72 through salary sacrifice. If your employer doubles it, you are putting £200 into your future for less than £80 today.

That is not an investment prediction. It is just the terms of the deal in front of you. The catch is the word 'locked' — more on that shortly.

Salary sacrifice changes the maths slightly

Salary sacrifice means you formally give up part of your gross pay and your employer pays it into the pension instead. Because your salary is lower, you pay less National Insurance — around 8% on the main band for employees — as well as less income tax.

Three things worth knowing before you assume it is automatically better:

• The National Insurance saving may not be yours. Some employers keep it. Some pass it into your pension as an extra top-up. Ask which yours does; it is a fair question and payroll will know.
• A lower salary can affect other things. Statutory maternity, paternity and sick pay are calculated on your reduced salary, as are some mortgage affordability assessments and student loan repayments (which fall, because your salary is lower).
• You cannot go below the National Minimum Wage. Salary sacrifice cannot take you under it, so very low earners may be restricted.

If you are a higher or additional-rate taxpayer, the tax relief is larger, and the case for contributing more — up to the annual allowance of £60,000, tapered for very high earners — gets stronger. In Scotland, income tax bands differ, so the relief on your marginal pound will not match the rest of the UK.

When paying more makes sense

• You are leaving employer matching on the table. This is the strongest case by a distance. Turning down matched money is turning down a pay rise that happens to be paid in 2050.
• You have a long horizon. Ten years or more until you need the money. Time smooths out the bumps in a way that two years does not.
• Your emergency fund is already in place. Three to six months of essential spending in easy-access cash, before you start locking more away.
• You have no expensive debt. A credit card at 22% APR is a guaranteed loss; pension investment returns are not a guaranteed gain.

When it genuinely does not

• You are saving for a house deposit in the next two or three years. Pension money is not accessible for that. A Lifetime ISA or plain cash savings is the right tool.
• You are already stretched. If the extra contribution would mean borrowing to cover the month, the match can wait until the budget settles.
• You are close to accessing the money and have other priorities. The minimum pension age is rising to 57 from April 2028, so 'close' is a relative term — but if you are 56 and need cash flexibility, think carefully.
• You have already flexibly accessed a defined contribution pot. The money purchase annual allowance drops your contribution limit dramatically, and extra payments may trigger a tax charge.

Five questions to ask before you touch the dial

1. What exactly is my employer's matching formula, and at what percentage does it stop?
2. Does the scheme use salary sacrifice, and does the employer pass on their National Insurance saving?
3. Which fund is my money in by default, and what are the charges?
4. How often can I change my contribution — and when does my change take effect?
5. Will this affect my statutory pay, my student loan repayments, or anything I have declared on a mortgage application?

Ask HR by email, not verbally by the kettle. You want the answer in writing, and you want it before you sign anything.

The quiet admin bit

Once you have decided, the actual change is usually a form or a tick box in the pension provider's portal. Note the effective date, then do two checks: one payslip to confirm your take-home pay moved by the amount you expected, and one look at the provider's website six to eight weeks later to confirm both contributions landed.

If the numbers do not match, ask payroll. Nine times out of ten it is a timing issue; the tenth time it is worth catching early.

None of this requires you to forecast markets or read a fund fact sheet at midnight. It is a question of arithmetic and timing — what your employer will add, what it costs you today, and whether now is the right moment. If the answer is 'not yet', that is a perfectly good answer, as long as you know which year you are going to revisit it.

General information only — not personal advice. If your circumstances are complicated, a regulated adviser or the free guidance service Pension Wise can help.