Please go to “Settings” > “Cycle settings” > “Edit cycles”, then select the top one (current cycle) and change its end date to yesterday. Tap ‘Save’. This basically splits the current cycle up and a new cycle will start from today. You can tap it again, if necessary, and adjust its end date if you wish it to be shorter or longer. After that you can amend your Regular income and this change will be valid from today only.