Vendor Payment Information
Welcome to the Vendor Payment Information page. NASA is committed to expedient and accurate payment of invoices. On this page you will find information about invoice payment, tips to avoid delayed payments and answers to questions you may have about the payment of your invoice.
Any questions or inquiries should be addressed to your Contracting Officer designated on your award or the NSSC Customer Contact Center.
NSSC Customer Contact Center telephone: 1-877-677-2123 (1-877-NSSC123)
Fax: 1-866-779-6772 (1-866-779-NSSC)
If your contract has not been modified with updated invoicing or voucher submission information, invoices are to be submitted in one of the following ways:
- via hardcopy paper to:
- NSSC - FMD Accounts Payable
- Bldg. 1111, Jerry Hlass Road
- Stennis Space Center, MS 39529
- via e-mail to: NSSC-AccountsPayable@nasa.gov
- via fax number: 1-866-209-5415
If your contract has been modified for electronic invoice submission via IPP, please submit invoices via IPP. For assistance with IPP, please use contact information below.