<prompt> Human: Heres the necessary info: My wife and I file taxes jointly in the US Combining our incomes, we gross 75k - 80k per year We had our first child last November We spend approximately 5k per year on daycare Im starting a new job this week as a public school teacher. I wrote a 1 on Line 5 of the W-4. I was afraid of writing a higher number and not getting taxed enoughThat said, my wife is also a teacher and has a week to make any changes to her taxinsurance documents at work. Heres my question: what number should she write down on her W-4 if we want to break even at tax season? Thanks in advance for any help you can provide!  <response>: Use this calculator, just input the data and it will give you the number that will best suit your needs. 