Form 16 is generated after the end of the financial year. The exact date on which it is generated can vary depending on factors like government notifications, but usually it is around the month of July. So, for example, for the financial year 2020-21 (Apr 2020 - Mar 2021), the Form 16s will usually get generated around July 2021.
For Opfin to generate Form 16 for your employees, please ensure that we are handling your 24Q filing. This is enabled by default for all organizations, and you can check it under Settings > TDS Filing Setup.
Opfin will automatically inform your employees by email when their Form 16s are generated.