I have eligible expenses for the Home Accessibility Tax Credit, however, I don't have all all of my receipts. Can I carry forward these expenses to the next tax year?

There is no specific mention of the ability to carry forward unused expenses to a future year.

You could always file without claiming the expenses so that you get your return in on time and then make an adjustment to your filed return later when you find those receipts.

Here's how to adjust a filed return: https://turbotax.community.intuit.ca/replies/2647992