Is there a way to change how the invoice shows paid instead of the giant “Paid” that blocks out details on the invoice?

Thanks for reaching out to the Community, @PlumberJay.

At this time, there's not a way to change how the Invoice shows Paid in QuickBooks Online. I'm going to submit feedback to our Product Development Team about bringing in a feature that will allow customization to the layout. You can visit our Blog to see what's coming to QuickBooks Online as well as seeing the newest update!

Let me know if you have additional questions or concerns. Have a beautiful day!