Welcome and thank you for posting here in the Community page, @devans1.

In QuickBooks Online (QBO) we have the option to create multiple invoice templates by importing your invoice template style and use the template when creating invoices.

First, you'll need to enable import style:

1. Go to the Gear icon.
2. Select QuickBooks Labs.
3. Scroll down the screen and toggle the switch to Import Style to On.

After turning it on, you can now import your new invoice template:

1. Click the Gear icon.
2. Click Custom Form Styles under Your Company.
3. Click New style drop-down arrow in the Custom form styles page.
4. To import style, click Import style.

You may check this article for additional reference: Import custom invoices.

Feel free to drop a comment below if you have any other concerns about invoice templates. Have a good one!