The AGI in california return is a tenth of my federal AGI, leading to showing me a huge refund for california. I was hoping the software will correct itself but it is not. What should I do? I am sure if I submit in the current state, the state tax return will be rejected because of such a huge difference in AGI between federal and state return
Better take another look at your own data entries from boxes 16 and 17 of your W-2's.
Also check the $$ in the state entry boxes in any 1099-R forms you might have.
One of the state pension issuers in CA, used to irresponsibly release 1099-R forms with the state boxes mis-numbered.....and you had to make sure you put the $$ in the properly numbered boxes in the TTX 1099-R software forms.
(I don't know if they are still messing up those forms or not)
I figured out the problem and the solution. So, last year I had got money from CA Paid family leave. That money is not taxable by California. Turbo tax had taken my full W-2 income as CA paid family leave. Once I corrected it, everything looked reasonable.