“Foot the bill” means to pay for something, especially the whole cost of an event, meal, project, or service. It often suggests that one person or group pays for others as well.
The phrase is widely believed to come from older bookkeeping practice. In accounts and bills, the foot was the bottom of a column of numbers. To foot a bill meant to add the figures and arrive at the total written at the bottom. From there, the expression developed into the modern sense of paying that total amount.
Today, people use it in both everyday and formal contexts. It can describe a person, a company, or even the public paying costs.
- She footed the bill for lunch after the client meeting.
- The company will foot the bill for employee training.
- In some cases, taxpayers foot the bill for damage after severe storms.
This idiom does not usually mean making a partial payment. It normally points to covering the main or entire expense. That is why it often appears when someone is responsible for the final total.