system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does someone end up owing thousands in back taxes?

I keep hearing ads for agencies that help people who owe tons of back taxes reach settlements, but how does that happen to start with?
gpt
Easy. Your W-2 was't filled out right and didn't automatically withdraw enough taxes. Then come tax time you owe thousands of dollars because you didnt pay enough during the year. However you didnt realize this was happening and don't have the money to pay right away.

Boom back taxes.