You received an email that we cannot see that tells you why your tax return was rejected.
Some rejected returns can be fixed and re-filed. Some have “un-fixable” reasons for the rejection and have to be mailed instead.
What is the rejection code or rejection message?
If it was rejected for AGI—-your 2023 AGI might not be in the IRS system if you filed late. Try using zero instead.
If filing with zero is rejected then file again but select the option that you did not file last year. The IRS does not see that question and it will allow you to e-file with no AGI question.
https://ttlc.intuit.com/community/agi/help/where-do-i-correct-my-agi-in-turbotax-online/00/26311
If that does not work and you still cannot e-file, then print, sign, and mail your tax return.
If you need to amend your California state return you can restart the state return, and after you get through the income and credits sections there will be an amend button on the list of possibilities, which will take you to that section and allow you to amend and try again.
@Zeitzew That is incorrect. You never use the "amend" process to fix and re-file a rejected tax return. Amending is a process you only use if the return has been accepted and fully processed by the IRS or state and still needs to have a correction or more information added. You should never click on anything that says
"amend" if your e-file was rejected.