Workplace Pensions Explained: Why Auto-Enrolment Is Free Money

If you're employed in the UK and over 22 earning above a certain threshold, you've probably been automatically enrolled into your workplace pension — and opting out is usually one of the most expensive financial decisions someone can make without realising it.

How it works. A percentage of your salary goes into the pension automatically. Your employer is legally required to add their own contribution on top. That employer contribution is, in effect, extra salary you don't get unless you're enrolled.

Then there's tax relief. Money you put into a pension gets topped up by the government — basic-rate taxpayers effectively get 20% added back, higher-rate taxpayers can claim back even more.

Why people opt out — and why it's usually a mistake. Short-term cash flow pressure is the main reason. But opting out means walking away from free employer money and government top-ups permanently.

What to actually do. Check what percentage you and your employer are each contributing. If your employer offers to match a higher contribution if you increase yours, that's usually worth taking.

General information only — pension rules and tax relief depend on your personal tax position.