By the way, a W4 is the form you filled out to tell your employer how much withholding to take out. Then at the end of the year you receive a W2 to report your annual wages and withholding.
You file the W2 and all your Self employment and Single Member LLC income on the same 1040 personal tax return.
Have you made any quarterly estimated payments to cover the tax on your Schedule C LLC income? Do you need more info on filing Schedule C and paying estimates?
