@Carpam30
For those who took the $300 on their Fed but used standard deduction and then itemized on California, your refund amount was greater than it was supposed to be, because you have more than likely used the $300 twice, once on line 10b and you left that amount included on the 1040a.
Your amount on the Calfile should not have matched the amount that TurboTax came up with.
You can expect that FTB will eventually audit you and charge you penalties and interest on the amount you double dipped on.
Sorry
