1. Go to Contacts > Individuals then click on the Advanced Search link on the right hand side.
  2. Expand the Contacts folder, expand the Financial folder then expand the Payments folder.
  3. Select Any Transaction then click on the Add button. 
  4. In the pop-up window choose the 'greater than' symbol from the Any Transaction dropdown, enter '0' in the field then click on the OK button.
  5. Finally, click on the Run Query button.