Seems like a turbo tax issue .
read online :
many users have reported that TurboTax is currently preventing them from filing their 2024 tax returns due to Schedule 3 being “locked”
While the Canada Revenue Agency (CRA) has finalized and released Schedule 3 for the 2024 tax year as of February 10, 2025, TurboTax has not yet updated its software to reflect these changes. As a result, TurboTax users are experiencing issues when attempting to file returns that include Schedule 3.
TurboTax has acknowledged this issue and stated that they are working to update their software to incorporate the finalized forms. However, they have not provided a specific timeline for when this update will be available.
In the meantime, some users have reported success with alternative tax preparation software that has already integrated the updated Schedule 3.
It's advisable to monitor TurboTax's community forums and official communications for updates on this issue. If timely filing is a priority, exploring other certified tax preparation options may be beneficial.
