A rental cancellation policy protects peak inventory when it states three things before the customer pays a deposit: the cancel window by date type, the fee or deposit you keep, and how a reschedule differs from a cash refund. One soft line — “full refund if we can rebook it” — lets Thursday cancels empty Saturdays and trains people to hold dates for free. Tighter windows on scarce dates, a real booking deposit, and one move to an open date before any cash goes back are enough. This guide is for party, wedding, and equipment owners who want rules staff can apply without a manager.