<prompt> Human: Im confused as to what my wife and I should do about our W4 withholding forms was prompted to look at these by a job change. We have one child, both of us work one job, and I earn roughly double what she earns.I think the best option for us is to claim 4 allowances on my W4 and withhold at the married filing jointly rate; my wife would claim 0 allowances on hers and withhold at the higher single tax rate. The 4 allowances seem high to me, but last years changes to the child tax credit appear to be the cause for the higher number. Anyway, whats really causing me confusion is the result I get from completing the Two-EarnersMultiple Jobs worksheet. It recommends claiming 0 allowances and withholding an extra amount from each paycheck.Can someone offer clarity on how I should interpret the results of the Two-EarnersMultiple Jobs worksheet? Should I understand it to mean that we should claim 0 and withhold the extra amount on both my wifes and my W4s? Should we do that on hers and claim 4 allowances on mine? These seem like wildly different options.  <response>: Use the IRS Withholding calculator. Its far more accurate and comprehensive. 