The Community is happy to see you, @andreaj1116.
I have information on how you can setup an expedite fee in QuickBooks Online.
You can create a new item in the Products and Services, however there's not a way to enter the 30% calculation. You'll have to manually input the calculated amount.
Here's how to add new item:
- Go to the Gear icon.
- Under Lists, select Products and Services.
- Click the New button at the upper right corner.
- Select the correct item type.
- You may name the item as Expedite fee and enter all necessary information.
- Then, click Save and close.
The following article contains some insights on this matter: https://quickbooks.intuit.com/community/Help-Articles/How-to-create-and-use-a-products-and-services-....
With the above information, you should be able to set up a new item for expedite fee. Let me know how things go once you've tried the above steps. If you have other questions, just drop a reply on this thread. I'll be happy to answer. Have a lovely day!