1. Login to the eFax portal at efax.callharbor.com. If you need help using efax, please see this article: https://support.callharbor.com/knowledgebase/article/efax-user-guide

2. Click the settings button in the dashboard or the sidebar. 

3. Select the "Billing" Tab

4. Now, you'll be able to see your fax usage summary.