I'm paying my CA taxes by Dec 15th and having a hard time figuring out the penalty and interest I owe the state. The FTP is confusing since it says 5% + 0.5% for each month it's late, but I also noticed some websites saying interest is owed on the money.
If I owe $1,000, and I'm paying my 2018 taxes on 12/15/2019, how much total should I pay?
