Hi userenjoycanmore-acc,
Welcome to the Community. It's important you're able to get the support you need so that you can get back doing what you love. I'd be glad to help.
Both ProFile and Pro Tax allow users to file T1, T2, T3, and FX tax returns. The difference is that Pro Tax is an online tax software that allows accounting professionals to manage and grow their tax business that lives right in the QuickBooks Online Accountant ecosystem. I encourage you to review these articles to speak to a support expert for ProFile and Pro Tax.
Let me know if you have questions, I'll be happy to help.