Part I: Games & Gaming · Slot Machines & Electronic Gaming

Coin-In

Slot Operations

The total monetary value of all wagers made on a slot machine or across a slot floor during a specified period. Coin-in is the primary metric for measuring gambling volume on slot machines and is analogous to “handle” in table games. It is recorded by the machine’s internal meters and reported through the slot accounting system. Coin-in is the denominator used to calculate both the hold percentage (win divided by coin-in) and the theoretical win (coin-in multiplied by the theoretical hold percentage). Accurate coin-in measurement is fundamental to revenue forecasting, player rating systems, and compliance reporting.

In practice

Coin-in includes recycled wagers — when a player wins and re-bets those credits, the re-bet counts as additional coin-in. This is why a player inserting $100 may generate $500 or more in coin-in over a session.

One entry from the Casino Industry Glossary — 1,157 terms written for surveillance, compliance and operations professionals rather than for players. Definitions describe industry usage; where a term carries a regulatory meaning, verify against the instrument that governs your jurisdiction.