There will not be any additional form for having "extra" money withheld from your paycheck. It will simply be included in the amount reported on your W-2. There is no special box on your W-2 for it either. Money withheld for federal is shown in box 2, and money withheld for the state will be in box 17.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
