Hi DavidOz,

Let me share with you some information about uploading invoice template. 

As of 29/06/2021, new QuickBooks Online accounts will no longer have access to the Import Styles or the ability to import invoice template. However, existing companies with this feature enabled are not affected and will continue to have access. 

You can still create a custom invoice template in QuickBooks Online or you can use and integrate a third party app that allows you to create/import an invoice template.

You can also share your thoughts and ideas through your account. Our product development team reviews all the feedback we receive to ensure we’re meeting the needs of our customers. Feel free to send your feedback by going to Gear icon and select Feedback.

Let me know if you need further assistance by dropping a comment below. Thanks.