Hi

Please find below information on the CRA website regarding GST/HST on your expenses. 

https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/t4002/t4002-4.html#...

If applicable, while filling expenses on the TurboTax platform, there will be a prompt regarding that. 

Hope that helps, please let me know if you need more information.

Thank you 

If you are filing a  GST return, then no you will not include your GST. 

Thank you for choosing TurboTax.