<prompt> Human: Got a message today 21st saying that I must pay 1600 by the 18th of January monthly gross is 1400 before taxes Supposedly I can contest it with documentation, but all they say is that I had an error on my 2015 taxes. Im pretty out of my depth here, where do I even start?  <response>: On that monthly gross youre making just under 17k a year. Which under the worst circumstances Filing single, 0 exemptions, 0 kids nets to a total of approximately 1,111 of tax liability. So either they think you hid some income or something is very fishy. 