Additional State Estimated Tax payments entered In Deductions and Credits do not all flow to the State
The deduction and credit section of TurboTax will allow you to enter more than four additional estimated payments for any one state, however only the first four additional payments are transferred to the State. TurboTax therefore only calculates a total of eight estimated payments for one state.
The State tax payment forms will only allow for eight total payments to be imputed. If you have entered more than eight total payments, only the first eight will be calculated. This information is not presented to you in the interview experience and TurboTax will allow you to enter more than eight payments for one state.