Hi, you can use T3 2022, you will find documentation under Early filing for T3 in Profile in this article. https://profile.intuit.ca/support/en-ca/help-article/tax-return/file-t3-return/L0bUJRHRv_CA_en_CA. The first EFILE version will be available in mid February for T3 2023, and the first paper certification will be available mid devember for T3 2023.