What is it called when you spend more than you have or earn

What is it called when you spend more than you have or earn? The single words I’d use to describe your behaviour of spending more than you make, have or earn might be profligate, which means you’re being recklessly extravagant or wasteful in the use of resources. Other single words to describe this behaviour might include reckless or foolhardy. But to use two words as a description, this is simple and can be described as Over-Spending.