<prompt> Human: I am currently paid at an hourly rate and receive my paychecks bi-monthly. I am looking for an excel spreadsheet that would allow me to put in the amount of my bi-monthly paycheck and then using a formula calculate the federal and state withholdings applicable to that paycheck. I am in Illinois but a spreadsheet that uses another states tax rates would be fine as i can adjust those rates for my state. I am currently trying to build my own but am having a bit of trouble getting my spreadsheet to work so any other advice would be helpful. I also posted this over in rtax but thought that rpersonalfinance may be of more help. Thanks much guys!Edit: Yes i understand there are multiple avenues to do this via online calculators, apps, etc. but I want to be able to do it in excel for personal budgeting and forecasting purposes  <response>: Isnt this itemized on your paystub? Every paycheck Ive ever gotten from every company in every state Ive ever worked has had this... 