Vendor Payment Information
Welcome to the Vendor Payment Information page. NASA is committed to expedient and accurate payment of invoices. 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)
NASA transitioned to Treasury's Invoice Processing Platform (IPP) in July 2018. Vouchers and invoices are to be submitted in IPP for awards that include the new voucher or invoice submission clause, 48 CFR § 1852.232-80.
**NOTE: Invoices for awards in closeout should be submitted via hardcopy/e-mail/fax to one of the addresses at the bottom of the page.
For assistance with Treasury's Invoice Processing Platform (IPP), please use the contact information below:
- IPP Help Desk Information: https://www.ipp.gov/
- IPP telephone: (866) 973-3131
- IPP e-mail: IPPCustomerSupport@fiscal.treasury.gov
If your award does not include 48 CFR § 1852.232-80, invoices are to be submitted in one of the following ways until you receive a modification from your NASA Contracting Officer to change your invoice/voucher submission:
- via email to: NSSC-AccountsPayable@nasa.gov
- via hardcopy paper to:
- NSSC - FMD Accounts Payable
- Building 1111, Jerry Hlass Road
- Stennis Space Center, MS 39529
- via fax number: 1-866-209-5415