After you file

Up to 16 weeks for federal ( <a rel="nofollow" target="_blank" href="https://www.irs.gov/filing/amended-return-frequently-asked-questions">https://www.irs.gov/filing/ame...>) Up to 4 months for state of CA (<a rel="nofollow" target="_blank" href="https://www.ftb.ca.gov/aboutFTB/Timeframes/?WT.mc_id=Contact_Slab_Processing_Times#/">https://www.ft...>). State of CA does not seem to have a way to track amended refund. You would need to contact them for the status. <a rel="nofollow" target="_blank" href="https://www.ftb.ca.gov/aboutFTB/Timeframes/#/contact">https://www.ftb.ca.gov/aboutFTB/Timeframes/#/c...>