Gambling involves monetary bets and prizes. But the money can take a range of formats, such as cash, chips, ticket-in ticket-out vouchers, and digital options (e.g., banking cards). The authors conducted a scoping review to identify research that tests the effects of monetary format in gambling. The authors identified 19 research articles that involved experiments with control conditions. The authors identified four categories of monetary manipulation designs used in the experiments. The most common design involved comparing gambling behaviour when money was present or absent. Other experiments manipulated the salience of money, tested Responsible Gambling tools, and tested the impact of promotional inducements. The authors did not find any studies that compared gambling using cash against forms of digital payment.