Thank you Mike9241. TurboTax did make me print out a 1040-V payment voucher but said nothing about canceling my previously scheduled payment to the Treasury. Or what to do about my State return (refund in this case so maybe it's OK). I would've ended up paying Feds twice if I didn't cancel the scheduled payment and also sent in the payment voucher! I assumed the originally scheduled payment minus the modest refund shown on my amended return would add up to my total due for the year. But I can see where that would be a bad assumption because of the corrected 1099.
TurboTax: room for improvement here where taxes are due and subsequent amended returns are filed. A nice note notifying us to cancel previously scheduled payments. Also, why show a refund on the amended return and also a 1040-V showing payment due. Why not subtract the refund from the amount due on the 1040-V??
P.S. - Maybe time for a new brokerage - 2nd year in a row where Schwab has sent a corrected 1099 late in the game.
