I didn't pay Federal Income Tax for the whole past year
Hi! I noticed in my W-2 form that Federal Income Tax wasn't withheld from my paycheck the whole past year. But the year before it was, and I don't remember filling new W4 (I worked for the same employer). So I think that my employer did a mistake. And now I have to pay Federal Income Tax for the whole last year of $5000 to IRS. And I can't qualify for the tax refund anymore because of that. Is there a way I can get my employer responsible for that and get help for them with this payment? I understand that I didn't notice that in my paychecks, but it's clearly employer's mistake.