I forgot to included a sizable deduction when I filed my original return, but I discovered it and filed an amended return before April 15. The original return showed me owing tax but with the amended return I am due a refund. The IRS's "Where's my amended return" page shows that they received the amended return but they are not finished processing it.
I was surprised to receive a notice from the IRS demanding that I pay the tax that my original return shows. There is no mention of my amended return in the notice.
Do I have to pay the amount due even though it is not correct?