<prompt> Human: Our taxable income was around 138,000 after deductions. We have discussed having more money withheld from our paychecks each week, but that means we have less money to work with and we have a newborn at home to care for now. I have a 401K but its non matching so Im not sure what percentage to put away. We werent expecting the 5,000 tax bill and Id like to avoid such a nasty surprise next time around. Thanks in advance!  <response>: You could bump your 401k and your wifes too, that will reduce taxable income. 