Hi Matt, thanks for joining the QuickBooks Community
We appreciate you sharing your feedback on the invoice template options in QB Online. The option to upload your own template using Import Style was retired in recent years due to low-usage and the high number of bug reports.
However, we still have some great templates you can make use of when customising your own invoice. If you like, you can also head over to QuickBooks Idea Exchange to share some ideas. We'll be reviewing all ideas submitted here, and if it gets to over 50 votes, we will review it with our Product team.