Here are the two most common scenarios where you might need to split a transaction and what you can do.
If part of the transaction is personal and part is business related:
Click on the down arrow ∨ at the end of a transaction to edit it.
Adjust the amount by removing the personal amount. E.g if the transaction is $100 but only $80 of the transaction is business related, change the amount to $80.
Apply the appropriate category.
Save the transaction.
If the transaction relates to multiple categories (e.g part of the expense is Rent and part is Power/gas):
Click on the down arrow ∨ at the end of a transaction to edit it.
Adjust the amount to the rent amount of the transaction.
Categorise the transaction as 'Rent' and save.
Create a new transaction by clicking on the + icon in the top right of the page.
Add the details for the Power/Gas portion of the expense.
Categorise the new transaction as 'Power/Gas' and save.