Ask most café owners what an hour of staff time costs them and they'll tell you the hourly wage. Maybe they'll add a bit for National Insurance if they're feeling thorough.

Almost nobody mentions the pension. Yet for every eligible member of staff, you're paying into their workplace pension every single payday, and that money is as real as the wages themselves. It just sits quietly in a corner of the payroll run where you never look.

Let's drag it into the light.

The rules, in plain English

Auto-enrolment means you have to put eligible staff into a workplace pension and pay into it yourself. You don't get to opt out of being the employer.

Broadly, an eligible jobholder is someone:

aged between 22 and State Pension age, and
earning more than £10,000 a year.

Hit both and they must be enrolled. (Younger or lower-earning staff can ask to join too, and in some cases you still have to contribute, but the £10,000 over-22 case is the one you'll meet most.)

The total minimum contribution is 8% of qualifying earnings, and at least 3% of that has to come from you as the employer. The staff member makes up the rest, usually 5% including their tax relief. You can pay more than 3% if you want to. You can't pay less.

"Qualifying earnings" is the bit people miss

Here's the part that trips operators up. The 3% isn't 3% of the whole wage. It's 3% of the slice of pay that falls inside the qualifying earnings band, which for the 2026/27 tax year runs from £6,240 to £50,270.

So the first £6,240 someone earns doesn't count, and neither does anything above £50,270. You only pay on what sits in between. That makes the real cost lower than a naive "3% of salary" guess, which is good news, but it also means you can't work it out on the back of a napkin without the band.

What it actually costs per head

Let me put numbers on it. These are illustrative round figures, not a quote for your payroll, but they show the shape of it.

Example: a barista on £24,000 a year

Qualifying earnings: £24,000 minus the £6,240 lower limit = £17,760
Your minimum 3% contribution: £17,760 × 3% = £532.80 a year

Call it £533 a year, or roughly £44 a month, for one person. Now multiply by however many eligible staff you have. Four baristas on similar money and you're past £2,100 a year before you've sold a single flat white to cover it.

Notice the band at work. A lazy "3% of £24,000" would have given you £720. The qualifying-earnings calculation brings it down to £533. Worth knowing, but either way it's real money leaving the building every month.

The duties that creep up on you

The contribution is the obvious cost. The admin is the one that catches people out, because it's easy to set up auto-enrolment once and assume you're done forever.

You're not. Your ongoing duties include:

Assessing every new starter. When someone joins, you have to work out whether they're eligible and enrol them if they are. A new full-timer usually is.
Letting opted-out staff back in. Someone who opted out can choose to opt back in, and you have to honour that.
Re-enrolment roughly every three years. This is the big one.

How it stacks on top of everything else

The pension contribution is dangerous precisely because it's small enough to ignore on its own. The problem is it never travels alone.

The true cost of an hour worked is the wage, plus employer National Insurance, plus holiday pay accruing in the background, plus the pension. By the time you stack those, the real cost of an employee is comfortably above the headline rate you quote when you hire them. Wages are only the start, which is exactly the point I made about how the National Minimum Wage rise is only part of the cost.

And these costs don't rise politely one at a time. They tend to land together every April. The pension sits on top of the same payroll that absorbed the employer NI changes whose real cost is now clear a year on. Each one is survivable alone. Together they're the reason a café can feel busy and still finish the month wondering where the money went.

If you're hiring, work the whole number out before you commit. Our free new hire calculator adds wages, NI, holiday and pension into one true cost of employment, so the offer you make is one you can actually afford.

It's the same trap as the recurring costs that arrive without fanfare and quietly compound, like what you really pay for a café music licence. Small, regular, easy to forget, and they all add up against the same till.

Budget it as a line, not an afterthought

The fix is boringly simple. Stop treating the pension as something payroll handles invisibly and start treating it as a per-head cost you plan for, the same way you plan for wages.

Put a pension figure next to every eligible staff member in your labour budget. When you're modelling a new shift pattern or working out whether you can afford another pair of hands, include the 3% from the start, not as a surprise on the payslip.

This is exactly the kind of thing StaffBrik is built to surface: the true cost of employment per person, with wages, NI, holiday and pension added up so you're looking at the real number, not the optimistic one.

Because the figure that decides whether a hire works isn't the wage you offer. It's everything that comes attached to it.

Ed O'Brien has run Hunters Cake Company for 17 years across cafés in Witney, Burford, and a bakery in Carterton, Oxfordshire. He's building Brikly - modular tools that give independent café owners the same data the big chains have, without the big chain price tag.

Pension auto-enrolment: the staff cost you're underbudgeting