How do I hide fields on sales receipts?

Hello maie, 

Glad to have you connect with us here in the Community, QuickBooks is a versatile program that simplifies the way you manage your accounting. I'll be happy to steer you in the right direction so you can continue to manage your work with peace of mind. 

The ability to hide fields on sales receipts isn't available in QuickBooks. I can see the benefit of having this feature and I encourage you to send feedback about this to our engineers. You can send feedback by clicking on the Gear icon and looking for Feedback. In the meantime, feel free to check out this helpful article that shows you how to: 

Customize invoices, estimates, and sales receipts in QuickBooks Online.

Let me know if this info helps. I'll be here in case you need anything else.