To delete a budget, follow the steps below:
In the iOS and Android version:
'Reports' > 'Select Budget Group' > 'Select budget' > Scroll down the budget's details > 'Delete' or
'Reports' > 'Select Budget Group' > 'left-swipe over the budget cell in the budget overview' > 'Delete'
In the macOS-version:
'Reports' > 'Select Budget Group' > 'Select budget' > 'Click on Delete in the budget details'