I'm here to help share some insights about categories in QuickBooks, MCC2021.

The option to add categories is available in all QuickBooks Online (QBO) versions. You can follow the steps provided by my colleague above on how to add on through the Chart of Accounts.

If you're using QuickBooks Self-Employed, you can only use the default categories in the program. You can refer to this article to learn more details about this: Schedule C and expense categories in QuickBooks Self-Employed.

Feel free to post if you have any other additional questions. We're here to help.