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My related question is I have estimated 2023 tax payments as calculated by Turbotax 2022, however in June 2023 I now have a large capital gain from real estate sale (second home).  What is the best way of calculating how I should adjust my 2023 estimated tax payments for the remainder of the year?  Do I estimate the capital gain from the sale and divide by 2 since there are two quarterly 2023 payments remaining for the year?  Some other method?  Thanks.