NASA
The information here is specific to NASA

Effective December 1, 2009, the NASA Shared Services Center (NSSC) was designated as the Finance Office for inquiries on all Letters of Credit. Department of Health and Human Services Payment Management System (PMS) will remain the designated billing office for all payments.

If you have any further questions, please submit an inquiry to the NSSC using the link below:

NSSC Customer Contact Center
Webform: https://www.nasa.gov/forms/general-information-request/

NASA has implemented an early cut-off for drawdowns each month. All NASA payment requests must be requested in the Payment Management System on the 26th* of each month by 3:30 p.m. US Eastern Time. If the 26th of the month falls on a Saturday, Sunday or federal holiday, payment requests must be made on the preceding workday. The Payment Management System will re-open for NASA drawdowns on the first business day of each month. For questions, please contact your NASA Center Point of Contact or your PMS Liaison Accountant.

Cutoff Dates for FY 2026:

  • July 2026 – July 24, 2026, last day to draw for this month.
  • August 2026 – August 26, 2026, last day to draw for this month.
  • September 2026 – September 25, 2026, last day to draw for this month.

Cutoff Dates for FY 2027:

  • October 2026 – October 26, 2026, last day to draw for this month.
  • November 2026 – November 25, 2026, last day to draw for this month.
  • December 2026 – December 24, 2026, last day to draw for this month.
  • January 2027 – January 26, 2027, last day to draw for this month.
  • February 2027 – February 26, 2027, last day to draw for this month.
  • March 2027 – March 26, 2027, last day to draw for this month.
  • April 2027 – April 26, 2027, last day to draw for this month.
  • May 2027 – May 26, 2027, last day to draw for this month.
  • June 2027 – June 25, 2027, last day to draw for this month.
  • July 2027 – July 26, 2027, last day to draw for this month.
  • August 2027 – August 26, 2027, last day to draw for this month.
  • September 2027 – September 24, 2027, last day to draw for this month.