I am using TTC and Go Transit to travel everywhere. Are those tax deductible ?

You can claim TTC and Go transit expenses in two cases. Firstly, if you have a business and your business requires you to travel for example to meet your clients. Secondly, if you are over 65 years of age and use TTC and Go transit for traveling, you can claim a refundable tax credit in Ontario (Ontario Seniors’ Public Transit Tax Credit).