State tax filing

 I searched online to learn where I saw the chart that said the financial institution withheld 10% of the federal tax withheld (in California). I misunderstood it. It was saying that by DEFAULT the IRA holder will usually withhold that 10% amount if NO other direction is given by the client. I was thinking that was all I owed. So, looks like I will need to make an estimated tax payment to the state on both RMDs. Thanks for the help.