If you run an income & expenditure report and a category is not showing as income or is incorrectly showing as income please follow these steps:

1)  Click on Business Details at the top of the screen 

2)  Under Business Categories select View/Edit Categories 

3) Under the income heading you can toggle the categories to be income or expenditure.

If the Toggle is blue the category is set up Income. If the toggle is Grey the category is set up as an expense.