I was able to "chat" with a QB Rep and they sent me this link to an Income Tax Calculator Spreadsheet. Surprisingly, when I filled it out, it calculated $0 for my employee (Set up in QB as Head of Household, $5000 for dependents). I spot checked some of my other employees (those using 2019 and before and those using 2020 or later W-4) and came up with the correct amount that was withheld on each paycheck. I am not sure why this new 2020 or later W-4 form knocks out federal withholding for these people/paychecks. My question is...will they owe big time once they file their taxes? Also, is it fair to those who filled out the form prior to 2019 and aren't receiving this change in withholding calculation? Because when I switched said employee above to the 2019 and prior option, he would have had about $300 withheld. It all seems strange to me. 

https://www.irs.gov/businesses/small-businesses-self-employed/income-tax-withholding-assistant-for-e...