Get your taxes done using TurboTax

It’s not quite that simple because any change in box 1 will cause changes to all boxes 2-6.  It will probably be impossible to figure it so that your box 1 taxable wages are exactly zero.  

Firstly, how do you determine your fair market wages were $13,334?  Second, I assume that $13,334 is the amount you contributed to the 401(k) and that can’t easily be changed?