<prompt> Human: Due to 2018 tax changes, just wondering how to go through the following scenario: I make 100k, GF makes 4k not a typo. We get married in a few months, should we both set our W4 to married withhold at higher single rate with 0 allowances we cant claim these in 2018 anymore right?. I dont mind having a little extra taken out of paycheck and like a nice fat tax return. I heard theres an advantage when married and there is a big yearly wage difference. Thanks PF!  <response>: Why dont you just set aside the 112th of the fat refund you want every month in an interest bearing account and then take it out at the end of the year instead of giving the federal government and interest-free loan? 