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@baldietax I think your answer is in direct opposition to the answer from @DianeW777  who says your answer applies to withholding but not when paying estimated payments myself.

 

I too would think that paying the safe harbor amount on time in equal quarterly amounts would be a true full safe harbor, but @DianeW777  answer says that is not then case.

 

(I'm not worried about actual 1040-ES vouchers themselves or how to pay. That is the easy part. It is knowing the portion for each quarter that is the hard part/question.)

 

Thanks for the info! Now which is the correct answer?