Why “I’ll Get the Next Round” is a Financial Trap

The Sacred Institution of “Rounds”

In the UK, buying rounds is almost a religion. It signifies camaraderie, generosity, and trust. To refuse a round is to declare yourself an outsider.

But mathematically? It’s a disaster.

The “Round Math” Problem

Rounds only work financially if three conditions are met: 1. Everyone drinks at the exact same speed. 2. Everyone drinks beverages of the exact same price. 3. The group stays for a number of rounds exactly divisible by the number of people.

Scenario A: The Price Disparity

• You: Lager (£6.50)
• Friend A: Lager (£6.50)
• Friend B: Double G&T (£12.00)
• Friend C: Craft IPA (£8.50)

If you buy a round, it costs you £33.50. If Friend B buys a round, it costs them £33.50.

But over the night, you consumed £26 worth of lager (4 rounds). You paid £33.50. You lost £7.50. Friend B consumed £48 worth of G&T. They paid £33.50. They gained £14.50.

Scenario B: The “Early Exit”

There are 5 people. You buy the first round (£35). You have to leave after round 2. You paid £35. You drank £14 worth of drinks. Loss: £21.

The Social Pressure

The problem with rounds is that they encourage excess consumption. * “I need to finish my drink so I’m ready for the next round.” * “I can’t leave yet, I haven’t bought my round.”

It turns a casual drink into a competitive sport where the prize is a hangover and an empty bank account.

The Solution: The “Kitty” or The App

1. The Digital Kitty: Use an app like Halfsy. One person pays the tab at the end, scans the receipt, and everyone pays for exactly what they drank.
2. The “Shout” App: Use Monzo or Starling to create a shared tab for the night. Everyone puts in £30. Whatever is left gets returned.

Conclusion

Rounds are great for atmosphere, but terrible for your wallet. If you’re on a budget, opt out early. “I’m just pacing myself tonight, so I’ll grab my own.” It might feel un-British, but your bank balance will thank you.