Yes. But what are expenses? Expenses are anything you pay for in order for you to work or reduces your take home that's not already covered by an existing field in the app. For instance if you pay someone for childcare so that you can work you can add a category named Childcare and enter the amount you spent on each entry.
Things you can track with Expense:
Taxes
Tip Out to specific positions or people
Meals at work
Childcare
Gas for delivery drivers or Uber/Lyft drivers
Pens, Uniforms, Shoes
Here's how you setup to start Tracking Expenses:
Click the more tab
Select Settings in the list of options
In the "Expense Categories" section click the Configure Categories item.
This will open a new page where you can add your Categories.
Click the Add button.
Enter the Category name, and if you think it's tax deductible. You'll need to research this to make sure it is tax deductible.
Click Save.
Once you have categories setup you'll now see a new item on the Tip Add and Update screens. Click this new item and you'll be taken to a new screen where you can enter the amount you spent on each Category.
This will reduce the take home amount for each entry. You can also temporarily display your take home without the Expenses. To do this click the Filter button in the top right of each screen, at the bottom are 2 options under the section "Expense and Daily Totals", Reduced by Expenses and Are Not Reduced.
To see your expense totals tap the Totals tab at the bottom. The last chart on the bottom will show all Expenses.