Thanks @DoninGA - I followed your advice and was able to calculate my quarterly payments for 2022. My follow-up question is, I'm operating a sole proprietorship and filing quarterly taxes for the first time. Using the method you described TurboTax calculated my expected tax liability (that I can divide by 4, and submit for my quarterly payments). My question is: Is the amount TurboTax estimates I will owe just federal income tax, or does it include the 15.3% federal self-employment tax (i.e., social security and Medicare)?
Thanks!
