Moon Invoice allows you to create categories and subcategories using below-mentioned steps.

1. Open the Moon Invoice application on your device or in the browser from this link.

2. Navigate to Settings -> Categories -> Click on the “+” icon to create a main category.

3. To create sub-categories, Go to the Main Category, click on the + icon, enter the name, and save it. 

                                                                                                                                              - Moon Invoice