If California Form 8829 is needed for your state return, you’ll need to mail your state return to claim expenses for the business use of your home.
According to the California tables linked via the TurboTax Help article State forms availability table for TurboTax individual (personal) tax products, California Form CA 3801, Passive Activity Loss Limitations will tentatively be available in TurboTax, and will be e-file ready, on 03/03/2022.
California Form 8829, Expenses for Business Use of Your Home, will tentatively be available for print returns on 03/03/2022, but is not supported for e-file. California does not support the e-filing of this form. Please see Forms you can file for individuals | FTB.ca.gov for more information.
