You can view and pay dues for a contact using the Billing option in the Contacts menu (Contacts > Contact Management > Billing) if your contact record has the correct permissions as a user.
Note: You cannot create an invoice online. Invoices are created from Desktop.
1. Click on the Billing option.
2. After viewing the Billing dues, and if available, selecting optional items, you can click Add to Cart and continue through the payment process.