Hi there, LindaJB.
We're unable to give access to employees or users for receipt capturing alone. You can refer to this page where different user types and permissions you can grant them are listed: User types and user permissions in QuickBooks Online.
Meanwhile, you can ask your employees to manually capture the receipts and send them to your email. You can also check out this page for more details about our Receipts option: Email receipts and bills to QuickBooks Online.
I'll surely take note of this suggestion for future updates. Always know that the Community is available 24/7 to help you with your questions.