I originally filed my 2023 CA tax return using Turbotax online. Now I am working on 2023 CA amended tax return using Turbotax Mac version. I've finished all the corrections and am ready to submit my amended return, but Turbotax doesn't allow e-filing because the the e-filing period has ended. The Turbotax instruction states that "sign and date form 8453-OL". However, it also advices against mailing a paper copy of the return. I'm confused about what and how I should submit CA amended tax return.
