Guide
How does money flow through a Foreign Military Sales case?
Money follows the case's financial requirements: the on the , then the quarterly bill. The purchaser pays into the , and the draws authority against it to obligate and spend, either by citing the fund directly on a contract or by reimbursing the appropriation that did the work.
How does money flow through a Foreign Military Sales case?
The funds’ flow process starts with the placing financial requirements on the international partner. These requirements are generally one of two forms including the following:
1. The requirement documented in the
2. Quarterly payment requirements, which are documented in the estimated of the and subsequently incorporated in the quarterly DD Form 645, Billing Statement, issued by
The DoW component having implementation responsibility for a given case will request OA and EA from at the appropriate times in the life of a case.
For cases, there is a similar flow of funds with the “Purchaser” being the and no or Interest-Bearing Account (IBA)/Commercial Banking Account (CBA).
References
SAMM
- SAMM C9.10.1 — Billing Procedures.
- SAMM C9.11.4 — Payment Identification.
- SAMM C6.1.1 — Routine Case Implementation.
- SAMM C9.3.10 — Foreign Military Sales Trust Fund.
Related
Initial Deposit
Funds that are required to cover outlays and/or deliveries that are anticipated to occur before the receipt of the first quarterly payment. These funds must accompany the accepted Letter of Offer and Acceptance.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Letter of Offer and Acceptance (LOA)
The legal instrument used by the USG to transfer itemized defense articles, defense services, and design and construction services to foreign partners.
When used under the authorities provided in the Arms Export Control Act for Foreign Military Sales, the LOA is a binding agreement signed by the USG and the foreign partner to transfer such articles and services.
When used under Building Partnership Capacity (BPC) authorities, the BPC LOA is not signed by the Benefitting Partner.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
FMS — Foreign Military Sale
SAMM Acronyms, as of 12 September 2026
Trust Fund
A type of account, designated by law as a “trust fund,” regardless of any other meaning of the term “trust fund.” A trust fund account is usually either a receipt, an expenditure, or a revolving fund account (trust revolving fund account).
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Implementing Agency (IA)
The military department or defense agency responsible for the execution of military assistance programs. With respect to FMS, the military department or defense agency assigned responsibility by the Defense Security Cooperation Agency to prepare an LOA and to implement an FMS case. The implementing agency is responsible for the overall management of the actions that will result in delivery of the materials or services set forth in the LOA that was accepted by a foreign country or international organization.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
LOA — Letter of Offer and Acceptance
SAMM Acronyms, as of 12 September 2026
Payment Schedule
List of dollar amounts and when they are due from the foreign customer. The payment schedule is included in the Letter of Offer and Acceptance (LOA) presented to the customer. After acceptance of the LOA, the payment schedule generally serves as the basis for billing to the customer. Changes in the estimated costs of an Foreign Military Sales case may require changes in the accompanying payment schedule.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
DFAS-IN — Defense Finance and Accounting Service - Indianapolis
SAMM Acronyms, as of 12 September 2026
DSCA — Defense Security Cooperation Agency
SAMM Acronyms, as of 12 September 2026
Glossary entry →Defense Security Cooperation Agency (DSCA) →
Progress Payments
Payments made to a prime contractor during the life of a fixed-price type contract on the basis of a percentage of incurred total costs or total direct labor and material costs.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Holding Account
An account established for each Foreign Military Sales country/international organization for the purpose of recording and safeguarding unidentified and certain earmarked funds for future use
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Foreign Military Sales (FMS) Case
A USG Letter of Offer and Acceptance (LOA), and any subsequent Amendment or Modification, that is the legal instrument used by the USG to transfer defense articles and defense services under the FMS program. See also "FMS" and "LOA."
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Security Assistance (SA)
A group of programs authorized by federal statutes by which the United States provides defense articles, military training, and other defense-related services by grant, lease, loan, credit, or cash sales in furtherance of national policies and objectives, and those that are funded and authorized through the Department of State to be administered by Department of Defense/Defense Security Cooperation Agency, which are considered part of security cooperation.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
DSAMS — Defense Security Assistance Management System
SAMM Acronyms, as of 12 September 2026
Glossary entry →Defense Security Assistance Management Systems (DSAMS) →
Defense Integrated Financial System (DIFS)
A financial system providing DoD-level financial management functions for the security assistance (SA) program. This includes centralized Foreign Military Sales (FMS) trust fund accounting, foreign customer billing, and financial management reporting. DIFS consolidates FMS data from the Army, Navy, Air Force, and other implementing agencies, and provides efficient accountability for oversight of the financial and program management aspects of SA.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)
Military Department (MILDEP)
One of the departments within the DoD created by the National Security Act of 1947, as amended. The Military Departments are: the Department of the Air Force, the Department of the Army, and the Department of the Navy.
SAMM Glossary, as of 12 September 2026
Glossary entry →Open the manual’s entry → (opens in new tab)