At what age is it illegal to receive money over three hundred dollars?

In the United States, there is no specific age at which it becomes illegal to receive money over three hundred dollars; rather, legality can depend on the context, such as the source of the money and the individual's legal capacity to enter contracts. Generally, minors (under 18 years old) may face restrictions on contracts and financial transactions, which could affect their ability to receive large sums of money legally. Additionally, laws can vary by state, so it's essential to consider local regulations.