I can provide some information about adding new categories in QuickBooks Self-Employed (QBSE), @moh-gaafar88.
The categories we have in QuickBooks Self-Employed are in line with the Schedule C categories the IRS has for self-employed individuals. The feature to create a new category isn't available yet.
However, our Product Development team is now working on how to approach dynamic categories while maintaining their main use as tax categories for self-employed individuals.
For now, you can visit the QuickBooks Blog to check for new updates and features that we have.
Let me know if you still have questions about the categories that we have in QBSE and or anything else by leaving a reply below. Take care and have a wonderful day!
You can create a new category by creating a new transaction, then in category dropdown , click on Add category , then a category will be added in your quickbooks.