Can an amended state return for California be e-filed or does it need to be mailed (paper-filed) if there is no refund/due amount on the amended state return?

[harsh867]

I am currently residing outside the US and wondering if I need to paper file an amended state return for California when the tax refund/due amount is zero. I was able to e-file an amended federal return and wondering if the same can be done for the amended state return.

[Critter-3]

When you get to the file tab if you're allowed to e-file the state return it will let you otherwise it will tell you it needs to be mailed.

[harsh867]

Thanks for your reply!

As a follow up, what's the deadline to file the amended state return given that I have already e-filed the amended Federal Return for 2020?

[Critter-3]

You have 3 years to amend a timely filed return.