How to claim day trading losses as a full-time day trader?

This is the first year that I am filing as a day trader and filing my trading income as business income.  This year my income from day trading is negative.  How do I write off the losses from my day trading?  When I input the information from my T5008 will it automatically calculate my losses and write them off against my other income or is there somewhere else that I need to input the losses?