Thanks for the reply and yes, I had to rely on the paper form to do the estimate which is unfortunate. Turbotax 2019 Mac desktop did ask me twice for withholdings - once next to my earnings based on my W2 and at the end of the interview. It should also probably tell people a little more specifically what they should put in from their YTD figures on their pay stubs as a best estimate. Please have someone check that double entry (I am a CPA but not a tax person). Turbo's answer to my estimate was also way off of what Form 505(and related worksheets) said with the same information. Interested to see what the basis for this was.
