It's very to customise an invoice in QuickBooks Online, Lois1.
There are two ways on how to make the invoice more professional. QuickBooks Online has a built-in editor that we can use. Simply go to the Gear icon and select Custom Form Styles. You may also check the detailed steps here: Customise invoices, quotes, and sales receipts in QuickBooks Online.
Another way is by customising through MS Word or .docx format. Once you have created an invoice template, you can import it to QuickBooks. Please refer to this article:
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