Welcome back to the QuickBooks Community, fcnewkirk. I've got steps so you can add a subcategory to a subcategory in QuickBooks Online smoothly.
To begin, I recommend going to the Product and Services page where you will find the option to manage the category. You'll then be able to perform your goal from there.
Here's how:
- Click the Gear icon at the upper right concern and choose Product and services.
- Click the More drop-down arrow and select Manage categorise.
- Click the New Category button and create a new name for a category.
- select Is a sub-category checkbox and choose the existing Sub- category.
- Click Save.
I added screenshots below for visual references.
![](https://lithium-response-prod.s3.us-west-2.amazonaws.com/intuit.response.lithium.com/RESPONSEIMAGE/62651dda-efc0-4d93-a26e-58ea58fe025d.default.PNG)
![](https://lithium-response-prod.s3.us-west-2.amazonaws.com/intuit.response.lithium.com/RESPONSEIMAGE/451cc0bb-cff4-46bb-92c8-508ba983a874.default.PNG)
In case you need steps on how you can edit or remove a category in QuickBooks, you can read this article: Group products and services into different categories in QuickBooks Online.
Please let me know how else I can help you with managing subcategories in QBO. I'm more than happy to provide additional assistance, fcnewkirk. Have a good one!