I dont understand why i have a $18 penalty. My W2 reflect my statis--single w/zero exemptions...yet turbo tax is telling me that I didnt pay enough taxes

[katjasinski]

I dont control what fed gov takes out.

[MarilynG1]

Actually, you do control what the Feds take out of your pay, with your Form W-4.

If you only have one employer, and you Filed as Single, with Zero Exemptions, you should be fine at tax time.

Did you have any other W-2's or 1099's for part time income that didn't have any taxes taken out?  If so, this could cause you to owe tax.   

If you have a 401K available at work you can join, this is a good way to 'hide' money from taxes, while saving it for your retirement! 

Here's more info and a video on Why Do I Owe Tax?

@katjasinski