From Gratuity to Compensation Interface: The Managerial Transformation of Tipping in the United States, 1880–2026

This article examines how tipping in the United States evolved from a contested interpersonal gratuity into an organizationally designed component of worker compensation. Using a historical-interpretive approach, the study integrates contemporaneous newspapers, legislation, congressional hearings, judicial decisions, administrative rules, occupational evidence, point-of-sale documentation, transaction data, and employer experiments. The analysis traces five periods from pre-1966 normalization through contemporary expansion and contestation. Tipping evolved from an anticipated supplement to wages into a legally institutionalized, technologically observable, and managerially configurable compensation mechanism. Digital technologies did not originate customer participation in worker compensation; rather, they increased its visibility, measurability, and organizational control. Contemporary “tipflation” therefore reflects the diffusion of tipping across transactions as well as changes in gratuity amounts. The article develops the concept of the compensation interface to explain how organizations allocate, administer, and structure customer participation in worker compensation across changing legal and technological environments. The findings imply that tipping policies, suggested gratuities, and service charges should be treated as compensation-system design choices that allocate responsibility and risk among firms, workers, and customers.