Hi, I would like to adjust my tax withholding this year as last year my company didn't withhold enough for me and I had a small tax penalty. I am set up as "single," which would take the most tax from my base pay and bonuses are withheld at a flat 22%, which may be too low for me. What is the best way to determine the right amount/what to put for the dollar amount in Line 4c of the W4? Thank you for your time!
