Thanks HopeS. To be clear the amount of overpayment that I said to apply to 2023 estimated covered the entire first three estimated tax payments and then some, both originally and when adjusted downward for the slightly higher tax. Ultimately what I would like to do is just tell them to reduce the overpayment applied to 2023 estimated taxes (it will still cover three quarters) rather than paying even more tax in cash now, when I won't owe estimated until January of 2024 either way. To me it just seems silly that the amendment doesn't let me adjust down the amount of my overpayment of estimated taxes by the amount of extra tax I owe rather than making me pay in cash the difference to get my overpayment back to what it was on the 1040 that was missing some income.
