[shiny]

> Prepare to pay significantly more in taxes.

And pay them quarterly, which can be done online via https://www.eftps.gov/eftps/

[EduardoBautista]

Doesn't this just allow you to pay in 4 payments instead of one? I am not aware that it allows you to pay less.

[technojunkie]

All independent and freelance workers are required to pay 1040-ES every quarter and could/might/will face penalties if they don't make payments in a timely manner or underpay. Estimated payments are a way to balance out the taxes you owe to the government.