Even after selecting the tab for SA 103F it still putting my car expenses under disallowable expenses... What is the matter and how do I categories this correctly?

Let's get this working to make sure the car expenses are included in your allowable expenses, richardadesoji-g.

I'll be sharing some steps with you that can resolve some of the most common unexpected results when performing a task in QuickBooks.  

Start by making sure the transactions are categorized under Box 20. This category is used for expenses related to car/van insurance, repairs, servicing, fuel, parking, hire charges, vehicle licence fees, AA/RAC membership, train/bus/air/taxi fares, and hotel/meal costs on overnight business trips. More details about this are discussed here: About SA103F Categories.

If you've done that already,  let me share another set of steps to check if a browser issue is causing the transaction to be part of the disallowable expense. 

Start by using an incognito/private browsing session or a different browser. Use these keyboard shortcuts to quickly open an incognito session, depending on the browser that you're using: 

• Ctrl + Shift + N  for Google Chrome
• Ctrl + Shift + P for Firefox
• Control + Option +P if you're using Safari
• Ctrl + Shift + P for Microsoft Edge

Then, go back to QBSE and check if the car expenses are now reported under the correct category. If you can see that it's being updated, follow the steps in this article to delete your browsing history: Clear Cache And Cookies To Fix Issues When Using QuickBooks Online.

I also have a couple more articles to share with you for more details and references: 

• Export Your Data From QuickBooks Self-Employed 
• QuickBooks Self-Employed Overview

You can always count on us if you ever need more help when working in QuickBooks Online. Just drop a comment below or post another question in the Community. We'd be glad to assist you again.