Yes, a pub can refuse tap water if you’re not a paying customer. Under the Licensing Act 2003, pubs are only required to give free tap water to paying customers.
You also can’t charge your customers for the tap water.
Here’s a more detailed explanation of what you need to know…
What Does the Law Say?
If a pub serves alcohol, then it’s a legal requirement to provide free tap water to paying customers. This rule helps promote responsible drinking by making sure people stay hydrated.
But what about someone who hasn’t spent a penny? (Not in the toilet) Legally, you’re not obliged to give them tap water.
As a licensee, you can refuse to serve non-paying individuals if you choose.
Can a Pub Charge for Tap Water?
The law says you can’t charge for tap water itself. The water has to be free. However, some pubs might charge for the service, like using a glass or for staff time. While that’s allowed, it’s not common practice.
In my pub, I wouldn’t dream of doing that. It’s just not worth the hassle or the bad rep it might cause with customers.
I’ve had people ask for tap water who weren’t buying anything, it’s quite common in fact.
I’ve not refused yet, I’ll give it to them as a gesture of goodwill. It’s a small thing that can help your reputation. That being said there have been times that I’ve wanted to say no!
For paying customers, I always make sure there’s clean, fresh water available. It’s a simple thing to do and it keeps people happy. I’ll even offer ice!
References
Money Saving Expert: Tap Water Rights
Freeths: Obligations for Pubs and Restaurants
Poppleston Allen: Free Drinking Water in Licensed Premises

I’ve spent over 20 years in the pub trade, starting at 21 when a family friend mentored me as a trainee manager. Since then, I’ve run two bars in Spain, worked in countless pubs, and now manage my own in Lincolnshire, where we’ve earned several awards, including CAMRA’s Pub of the Season and Community Pub Hero at the Houses of Parliament. Running a pub comes with its challenges, and if I could go back, I’d tell myself to slow down and find a mentor. My goal is to keep bringing the community together, win more awards, and help others avoid the pitfalls I’ve faced. Got a question? Reach out—I’m here to help!
– Steve