You can either opt to cover fees or opt out of covering processing fees. You can change this at anytime throughout the challenge. To change this (see below for screenshots):
2. Click on the Dashboard tab to the left of the screen
3. Click on Edit Settings
4. Here, you'll be able to check the box to Maximize Impact and cover fees or you can un check if you do not want to cover fees.
5. After you've made your changes, hit Save settings