How do you change the default wording on the payment receipt that can be sent to Customers when recording their payment?

Hello rochelle-aissolu,

Welcome to the Community! QuickBooks Online offers a flexible program that allows you to customize your receipts so they stand out to your customers. I'll be happy to show you how to edit the wording on your invoices. 

You can add a custom message on your invoice  by clicking on the Gear icon > Custom Form Styles > open the receipt template in question > navigate to the Content tab > from here you can edit the wording in each section of the receipt. I encourage you to add your terms and conditions here and make sure to save your changes once you're done. 

Here's a helpful article that shows you how to: 

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

Let me know if this info helps by leaving a comment below. I'll be one message away in case you need anything else.