Payment Remittance Information
For proper credit, please be sure to reference the order/invoice number with your payment.
- Credit Card: Payment can be made online via the MyCoSN portal. We accept Visa, MasterCard, Discover, and American Express.
- ACH/EFT: See invoice or contact finance@cosn.org for banking information.
- Check: Please make check payable to CoSN and mail to PO Box 75110, Philadelphia, PA 19171-5110.
Common Questions
I can't locate the membership invoice. How can I proceed?
In order to see the invoice, you must be listed as a primary or billing contact. For assistance, contact membership@cosn.org.
Do you accept purchase orders?
CoSN accepts purchase orders (POs) for membership dues, as well as event registrations. An invoice will be generated upon receipt, and membership will be renewed once full payment is received. Payments are due within 30 days of the invoice date.