What Is Challenge 25?

Most operators know Challenge 25 exists. Fewer run it properly. The gap between having a poster and operating a working system is where test purchase failures, licence reviews, and underage sales happen.

The legal baseline

The Licensing Act 2003 makes it an offence to sell alcohol to anyone under 18. Premises licences that authorise alcohol sales include a mandatory condition requiring an age verification policy. The revised guidance issued under section 182 recommends Challenge 21 or Challenge 25. Many licensing authorities go further and write Challenge 25 directly into premises licence conditions. Where it is a condition, it is legally binding.

Check your premises licence. If Challenge 25 is a condition, operating it is not optional. If it is not a condition, you still need an age verification policy. The section 182 guidance recommends Challenge 21 or Challenge 25, and many areas default to Challenge 25 in practice.

Why the threshold is 25, not 18

Because a 17-year-old can easily look 18. Setting the challenge threshold seven years above the legal drinking age creates a buffer. If your staff challenge everyone who looks under 25, the chance of serving a minor drops sharply. Failing to operate your age verification policy properly can lead to prosecution for an underage sale, a formal licence review, additional conditions on your premises, or suspension and revocation in serious cases.

What counts as acceptable ID?

The identification must show three things: a photograph, a date of birth, and a holographic mark or ultraviolet feature.

In practice, that means a passport, UK photocard driving licence, or a PASS-accredited proof of age card. Student cards don't qualify. Any ID missing the security features gets refused. Some operators keep a narrower house list for simplicity, which is fine as long as it still satisfies the licence conditions and staff know what's on it.

What goes wrong?

No refusals log. Every refused sale should be recorded: date, time, description of the customer, which staff member refused. Refusals logs are not a standalone statutory duty, but many licensing authorities require them as a condition, and inspectors treat them as a basic indicator of whether your age verification policy is actually operating. If you can't show any evidence of refusals, expect questions.

Untrained staff. Everyone who serves or authorises alcohol sales must understand your age verification policy. Not vaguely. Enough to explain it if asked by a licensing officer. Training at induction, refreshed regularly, documented.

Missing signage. Display it at the point of sale and at the entrance. The signs do two jobs: they remind staff and they set customer expectations.

No management oversight. Relying on individual staff to remember the policy without spot-checks or team discussions is how failures accumulate quietly until a test purchase catches one.

How do test purchases work?

Trading Standards officers and the police send in volunteers who are under 18. The volunteer tries to buy alcohol without being challenged. If your staff serve them, enforcement action can follow. That can mean a fixed penalty notice, a licence review, or prosecution under the Licensing Act 2003. The server who made the sale can face personal liability too.

What does a working system look like?

Four things, all running at once.

Your house policy spells out what ID you accept, how to handle a refusal, what gets recorded. Every relevant staff member is trained on it. Documented, dated.

The refusals log is the proof that the policy is working in practice. Check it weekly. If there are no entries, ask yourself: is nobody underage coming in, or is nobody checking? Both answers tell you something.

Management makes it visible. Team meetings. Spot-checks. The moment Challenge 25 becomes background noise for your team is the moment a test purchase catches you.

If the log has entries, staff can explain the procedure, signage is up, and someone in management is checking, you have a system. Remove any one of those and you have a poster.