Account Inquiries
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Correspondence & Payments
Please send all correspondence and payments (other than Nassau Financial credit card payments, see below) to the appropriate address indicated. This includes payments you may have set up elsewhere that are directed to Nassau Financial. Please note that payments and correspondence sent to any other address may result in delayed posting.
Correspondence, and Payments
Nassau Financial Federal Credit Union
P.O. Box 9006
Westbury, NY 11590-9006
Nassau Financial Credit Card Payments
Send directly to Visa at:
P.O. Box 4521
Carol Stream, IL 60197-4521
Westbury Administrative Office/Service Center (Limited Branch Services)
865 Merrick Avenue
Suite 250 N
P.O. Box 9006
Westbury, NY 11590-9006
(516) 742-4900
Fax (516) 742-6253
Please enter the building through the main entrance at the center of the building and take the elevator to the second floor. Proceed right across walkway to Nassau Financial's Westbury Service Center.
CO-OP ATM available during normal business hours M-F 8:30am-4:00pm.
Comments and Feedback
Nassau Financial Federal Credit Union
Audit/Compliance Department
P.O. Box 282
Westbury, NY 11590-9006
Limited services available in Westbury by appointment only
Schedule an appointment to discuss and apply for home loans and other accounts and services, including applying for loans, opening a checking account, certificates, and setting up electronic services.