The amount of a Christmas bonus can vary widely depending on the employer and industry. It's important to keep in mind that a bonus is typically a discretionary reward, and not something that is guaranteed or entitled to. That being said, a common benchmark for a Christmas bonus is typically one to two weeks' worth of pay, although some employers may choose to provide a more generous bonus. Ultimately, the amount of a Christmas bonus is determined by the employer and may depend on factors such as the company's profitability and budgetary constraints.