@SandyG19
In this Public forum, We can't see what you did or didn't do that resulted in the increased penalty.
....BUT...purely guessing one possible situation:
The penalty calculated by TTX "might" be the amount if you had paid your taxes due to CA before 15 April. If you didn't pay all of it by 15 April, then the extra $$ assessed by CA may be due to your not paying on time, so they added some more penalty/interest.
i.e. the extension only extends the data/paperwork filing date...not the 15 April payment deadline.
Not sure what they might adjust for folks in the January L.A. county declared disaster area, if it was supposed to apply to you.....but you could always call the FTB and ask what you need to do if that is your situation...there should be a telephone number on their letter.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
