Hi there, @jvanspyker.
You can categorize your vehicle registration fee as personal vehicle expenses.
You can check out this article: Categories in QuickBooks Self-Employed to learn more.
I also suggest reaching out to an account to be guided in categorizing it.
Also, consider visiting this article: QuickBooks Self-Employed Overview to learn a fast and easy way to track your business.
I'm just a few clicks away if you have additional questions, jvanspyker.
