You can use ReFile to add Schedule 7 to your return. This TurboTax FAQ tells you how you can change a return that you’ve already filed: https://turbotax.community.intuit.ca/turbotax-support/en-ca/help-article/accounting-bookkeeping/file...

Perfect! Thanks so much 🙂 

I have a similar question but haven't been able to find an answer to it. How do I attached Schedule 7 for a return that has NOT been filed yet. Is there an option at the end before I hit "submit" to upload additional schedules?

@o-box 

If you need to show an HBP repayment, enter in you RRSP contribution, and then search for Home Buyers' Plan to enter that info. A Schedule 7 will be generated based on your answers.