- A W-8ECI International Tax Payer Identification Number and Certification Form must be completed by any new international vendor being added to our system. Please have international vendors complete this form and fax to Purchasing at 203-365-7609. Download a copy of the W-8ECI International Tax Payer Identification Number and Certification Form and complete it electronically.
- If you are asked to provide Sacred Heart University's W-8ECI to an international company we want to do business with, please use this completed form.