"Accounting" is not showing up on my Navigation bar, and it is not listed as an option to add either.

Thank you for reaching out to the Community, Sara. I'll share some information regarding the missing Accounting tab from your QuickBooks Online (QBO) navigation bar.

To provide better assistance, could you please provide more information on the area of Accounting menu you are looking for? If you want to access your Chart of accounts or Reconcile window, you can navigate the Transaction tab instead.

QuickBooks Online has undergone several updates recently, which have resulted in significant changes to the navigation bar. Our goal is to provide a user-friendly experience to our customers.

Moreover, you can customize your navigation menu by bookmarking frequently used pages and hiding those that are not necessary.

If you have any further concerns regarding the navigation menu of QBO, please feel free to reach out to me. I'm always happy to help. Take care.