To delete a transaction on Square, you will need to follow these steps:

  1. Log in to Square.
  2. Click the “Deactivate Transaction” button on the left-hand side of the screen.
  3. Enter the amount of money you want to delete and click the “Deactivate Transaction” button again.
  4. Your transaction will be deleted and you will not be able to make any new transactions with Square until it is reactivated.