The Amazing Race requires contestants to travel all over the world, which means money is an essential part of the show. In order for the race to be fair and interesting, there are strict rules contestants have to follow regarding how much money they can use and how they can obtain more money if needed.
Contestants do not use their own money during the race

The show does not allow contestants to use their own money. Rather, each team is given a set amount at the beginning of each leg. That will allow them to cover the essentials needed, such as food and transportation. The amount will vary depending on the leg–it has been reported that it is anywhere from $1 to $500.