Guilt Tax: The Tipping Screen With a Conscience
Fintech
Intermediate
2 hours
The screen swivels toward you. 25%, 30%, 35%, and a "No Tip" button hiding in gray at the bottom like it did something wrong. On a $4 coffee you already paid for. With the barista watching the terminal turn. Tipping used to be a quiet thank-you. Somewhere along the way it became a tax you pay in social anxiety, collected by a touchscreen that already made the choice for you.
The brief:
Design a point of sale tipping screen that lets a customer tip fairly, or not at all, in seconds and without a shred of guilt.
Who you're designing for: Renata, 29, one hand wrapped around a $4.50 iced coffee, the other tapping her card, the barista two feet away watching the terminal rotate toward her. She tips when service is good. She just does not want a machine deciding what "good" is worth, or a stranger clocking her answer.
Constraints:
"No Tip" carries the same visual weight as every suggested amount. Same size, same contrast, same row. Never a gray afterthought at the bottom.
Every suggestion shows the real dollar amount next to the percentage. "20% ($0.90)", not a bare "20%".
Nothing is pre-selected. No highlighted default nudging the tap, and the suggested percentages fit the context (a $4 coffee is not a $200 dinner).
The customer finishes the screen in 2 taps or fewer and under 5 seconds, no scrolling.
Bonus round:
Design the merchant side too. Give the small-business owner a setup where honest defaults are the easy path, and design a $0 confirmation that carries zero shame on either side of the counter.
What good looks like:
A customer who wants to tip nothing can do it in one glance, no hunting, no judgment.
The math is fully in the open: the percentage, the dollar amount, and what it is calculated on are all visible before the tap.
The screen would pass an ethics review. No anchoring, no guilt, no pre-checked box. This is the same line I drew in designing habit-forming products without manipulation: persuasion is fine, coercion is not.
Suggested tools:
Figma for the screens, Figma prototyping or ProtoPie for the tap flow, Maze to test whether a stranger can find "No Tip" in under five seconds, pen and paper for the terminal layout before you commit pixels.
Brand vibes:
Square (Block): the incumbent tip prompt you are here to fix. Study the pattern, then break its habits.
Toast: restaurant checkout under time pressure. Study how it moves people through a busy counter fast.
YNAB: how to show money plainly and without manipulation. Study its honesty about where every dollar goes.
Felipe's tip:
A default is a decision you made on someone else's behalf. Make it one they would have made themselves. If your tipping screen only works because people are too rushed or too embarrassed to say no, you did not design a payment. You designed a trap. Want the trust version of the same idea? See Signal Only, the focus mode that earns your trust.
Share it:
Post your take and tag flinbu. Show me the "No Tip" state proudly, that is where the whole challenge lives. If you want to see how I handle real payment UX, the Buildertrend Wallet payments case study is the long version. #FlinbuChallenge #UXDesign #Fintech