Seriously, the only way to do this is buy having your employee adjust his personal withholding exemptions to a level he finds satisfactory. I'm afraid you are opening a whole can of worms if you do otherwise.
Multiply the employee's wages by the desired percentage and divide by the number of pay periods per year.
Then use the paycheck withholding calculator to figure out the number of exemptions that would result in the desired per-paycheck withholding amount. And remember that, for example, if $60 needed to be withheld per paycheck but X exemptions only provided $50, you could use X exemptions with an additional $10 per-paycheck withholding (per the "additional withholding" on the W-4 withholding certificate).
At least, that's how I would do it. Shucks, it's probably how I will figure my withholding amounts when I start working in late June.
I believe a signed request from your employee requesting the fixed percentage should be all the CYA evidence you would need. But you'd be wise checking with whomever does your taxes to be sure.
My accountant just told me to increase my witholding and had a work sheet to show how much.
The employee however is responsible for their taxes. There was a report showing how government employees are over 3 Billion dollars behind in taxes. He maybe just following the government employees example.
Well, under his/her stated allowances find out how much he owes. If he wants more withheld then enter that amount as “additional withholding” or have him change his allowances/exemptions on his W-4.
What payroll software are you using?
don’t you have anything better to do? I have been asked this as well and the software only let’s me get so close or there about’s.
Tell him that’s it and move on.