After you file

I have the same issue. I missed a 1099 form and am trying to amend my return.  I overpaid in 2022 and applied the overpayment to 2023 estimated taxes. When I added the overlooked income using the turbotax n amend function, the amount of my overpayment (and therefore the amount of it I can apply to estimated taxes) decreased by the amount of tax I owe on the missed income. That is fine. I fixed the amount to apply to estimated taxes, reducing it by the amount that I have actually overpaid, which is less than what was on the original return by the amount of the tax I owe on the extra income. So I should be square, having less applied to estimated 2023 taxes and not owe anything.   But the Turbo tax system is still saying I owe the difference in cash to the IRS, when in fact, I have already subtracted the amount I owe from what would be applied to estimated taxes. Will I have to pay that amount, even though the am applying less to estimated taxes by that same amount? What would happen then to the amount that I pay through an IRS bank deduction that I really don't owe? Will the IRS refund my overpayment, or will I have to just consider that the extra cash Turbo tax is saying the IRS should deduct is an addition to the now revised amount applied to estimated taxes? OR will Turbo tax somehow show the IRS that the amount shouldn't be deducted from my account at all? PLEASE HELP