Liam, 22, moved into the houseshare at number 5 in September, three weeks into his first proper job — logistics coordinator, £24,500 a year, which he'd mentally converted to "about two grand a month" and budgeted accordingly.
Then the first payslip lands. £1,721.
He reads it at the kitchen counter with the concentration of a man defusing something. Income tax: £199. National Insurance: £80. And a line that says pension — £82, which he doesn't remember agreeing to.
"Auto-enrolment, mate," says Jordan, flatmate and self-appointed financial adviser, not looking up from his phone. "They opt you in automatically. You can opt out though — takes two minutes. That's £82 a month back. You're twenty-two. You'll be dead before you're old, and if you're not, future-you can sort it. That's basically a grand a year of actual nights out versus money in a box you can't open till you're sixty-something."
Liam looks at the payslip. £82 is his share of a Friday takeaway, a gig ticket, most of his phone bill. And retirement is — he does the maths — forty-five years away, which might as well be science fiction.
Try it yourself before you choose
What is Jordan's plan actually worth?
Liam's £82 costs him about £66 of take-home — and triggers roughly £61 of employer money on top, so about £143 a month goes into the pot. Set a growth rate and see what "£82 back a month" would really trade away by 68.
Stay enrolled: pot at 68
—
—
Opt out: pot at 68
£0
Plus roughly £66 a month more take-home along the way
An illustration, not a prediction — growth isn't guaranteed and investments can fall as well as rise.
Decision point
What should Liam do?
If you chose: Opt out — take the £82 a month now
Cash in hand now
Debt risk
Peace of mind
The £82 that was never really £82
Here's what Jordan's maths misses. That £82 deduction isn't costing Liam £82 — pension contributions come out before tax, so his take-home only drops by about £66 of it. And the moment it lands in the pension, his employer adds their contribution on top and tax relief tops up his share. Opting out doesn't just stop Liam's £66 — it fires the employer's money and the taxman's contribution too. It's the only pay rise you can cancel by accident.
Then compounding gets involved. Money invested at 22 has forty-five years of runway — the most valuable decade of contributions anyone ever makes is their first one, precisely the one Jordan proposes skipping. "I'll start at thirty when I earn more" sounds reasonable and costs a fortune: the late starter can pay in more per month for the rest of their life and still not catch up.
If you chose: Stay enrolled at the minimum and forget about it
Cash in hand now
Debt risk
Peace of mind
The default is quietly excellent
Doing nothing is, unusually, a strong move here — auto-enrolment was designed by behavioural economists for exactly this moment, betting that inertia would beat Jordan. Every month, Liam's ~£66 of real cost becomes £82 in the pot, plus the employer's share on top, invested and compounding for four and a half decades.
What this choice leaves on the table is only the follow-up question nobody tells new starters to ask: does the employer match more if you contribute more? Many schemes do, and unclaimed match is a pay rise sitting in an HR policy document. Staying in at the minimum is a B+. There's an A available for the price of one email.
If you chose: Stay in — and ask HR if they'll match more
Cash in hand now
Debt risk
Peace of mind
One email, decades of difference
This is the fluent play. Staying enrolled keeps the triple contribution — Liam's money, tax relief, employer's money — and the HR question costs nothing to ask. Schemes that match above the minimum are common, and the difference between 3% and 5% employer money, started at twenty-two and compounded to sixty-eight, is measured in tens of thousands.
The trade-off is real but small: raising his own contribution tightens this month to loosen a distant one, and at 22 with a houseshare rent, cash flow is genuinely tight. But even asking without acting puts the knowledge in the bank — he can raise it at the first pay rise, when the extra was never in his pocket to miss.
Curious? You can tap the other choices to explore every path — each one teaches something different.
What Liam actually did
Liam very nearly opted out. He had the form open. What stopped him wasn't wisdom — it was Priya from number 7, round for the houseshare's monthly "dinner that is mostly garlic bread", who heard Jordan's speech and slid her phone across the table with the Compound Interest Visualiser open. "Set the delay slider to ten years," she said. "That's your plan."
Liam set his age, £82 a month, and dragged the slider. Then he went quiet in a way Jordan found deeply satisfying to watch, because the gap on the screen was a number with a comma in it that belonged to a house, not a takeaway.
He stayed in. The next week he sent HR the one-line email — and it turned out the scheme matches up to 5% if he contributes 5%. He hasn't raised it yet; rent is rent. But it's written on the houseshare whiteboard under "when pay rise": pension to 5% BEFORE lifestyle.
Where it leaves him: enrolled, £82 a month building with company, a plan taped to the fridge — and Jordan, who read the payslip explainer "just to check Priya's working", quietly still enrolled too.