Saying thank you on the bill: what the research says

The bill is the last thing a guest holds before they leave. In most restaurants it is also the least considered moment of the evening: a slip of paper with numbers on it. Researchers have looked at what happens when you add a single human sentence to it.

The classic study: “thank you” on the check

In 1995, psychologists Bruce Rind and Prashant Bordia ran a field experiment in an upscale restaurant in a large US city. A server wrote either nothing, “thank you”, or “thank you” plus her first name on the back of the checks. The result was published in the Journal of Applied Social Psychology.

Writing “thank you” increased tip percentages. Adding her first name had no extra effect. The authors concluded that expressing gratitude on the check is a low-cost tactic that can produce a worthwhile return.

Two honest notes. The study measured tips, not return visits. And it was one server in one restaurant. It shows that guests notice and respond to gratitude at the moment of paying, not that a note alone fills your tables.

Why the bill is the right moment

The bill arrives when the evening is still fresh. The guest has just eaten, the person who served them is standing nearby, and they are deciding how they feel about the night. Anything you want them to remember should happen here, not in an email three days later.

Toast and Resy’s Regulars Report 2026 shows why that matters. Guests who found a restaurant through a search engine were one-and-done 83% of the time. At the same time, 48% of guests said being remembered makes them feel most valued, and only 30% said they always get that recognition. The gap between those numbers is where a personal goodbye fits.

From a note to a reason to return

A handwritten note is personal but it ends when the guest leaves the table. A few things make the same moment last longer:

• Make it personal. The thank-you should come from the people who looked after the guest, not from a brand.
• Give a next step. An offer for the next visit turns a nice feeling into a plan.
• Make it measurable. If the offer can only be used once, on a later visit, every redemption shows you a guest who came back because of it.

That is the idea behind Seeya. A QR code on the receipt opens a short thank-you video from the team member who served the table, followed by a single-use offer for the next visit. Nothing changes for the staff: the code is added when the bill prints. See how it works, or read how to measure your guest return rate.