I just changed how I entered the data, I only entered the state estimated tax if it was paid in 2021. So by excluding the amount paid for 2021 that was paid in 2022, TurboTax can't double deduct it and now the total works out as expected.
i.e (California is weird, they skip the 3rd payment)
4/1/2021$800 estimated state tax paid
6/1/2021 $1000 estimated state tax paid
1/1/2022 $1000 estimated state tax paid
I expect the total to be $2800 for California estimated taxes, which is what is listed in the worksheet, but in the actual Schedule A line 5a has 1950. (which appears to be 2020 estimated tax paid in January of 2021 of $1150 + 4/1/2021 payment of $800 = $1950). I'm guessing the estimated payments is applied for the year you make the payment, so it shouldn't count the $1000 made on 1/1/2022. If one formula only adds the payments made in 2021, and another formula uses that total and deducts payments made in to 2022, it all adds up to the line on Schedule A line 5a.
