Guide
What are the payment terms of a Foreign Military Sale?
Section 4 of the standard terms sets out the money side: the purchaser pays the U.S. Government the total cost even when it exceeds the estimates, pays in U.S. dollars on the stated in the and whenever billed, pays interest on arrears, and gets back anything paid beyond the final cost that is not needed for arrears on its other cases.
What are the payment terms of a Foreign Military Sale?
4.1 Recovery of cost
4.1 The prices of items to be procured will be billed at their total cost to the . Unless otherwise specified, the cost of items to be procured, availability determination, , and delivery projections quoted are estimates based on the best available data. The will use its best efforts to advise the Purchaser or its authorized representatives of:
4.1.1 Identifiable cost increases that might result in an overall increase in the estimated costs in excess of ten percent of the total value of this ,
4.1.2 Changes in the , and
4.1.3 Delays which might significantly affect estimated delivery dates. failure to advise of the above will not change the Purchaser’s obligation under all subsections of section 4.4.
This section reiterates that the data reflects a best estimate of costs and delivery dates. The estimates may be subject to change. In accordance with the , this section obligates the international partner to pay the the total cost for the items or services. is often characterized as a “no profit, no loss” financial agreement. This section reiterates the “no loss” aspect.
4.2 Refunds
4.2 The will refund any payments received for this which prove to be in excess of the final total cost of delivery and performance and which are not required to cover arrearages on other of the Purchaser.
The will refund payments that are in excess of the total case cost unless there are other unpaid financial requirements on other cases with the same international partner. In this situation, the excess payments from one case may be applied toward the delinquent amount due on another case. While Section 4.1 serves as the “no loss” condition, this section reaffirms the “no profit” condition stated in Section 3.1.
4.3 Payment delays
4.3 The Purchaser’s failure to make timely payments in the amounts due may result in delays in contract performance by contractors, claims by contractors for increased costs, claims by contractors for for breach of contract, claims by or contractors for storage costs, or termination of contracts by the under this or other open Letters of Offer and Acceptance of the Purchaser at the Purchaser’s expense.
Any delay in making the case payments by the international partner may result in the directing the contractor to stop work, which, in turn, may lead to additional or increased costs, storage costs, and delayed delivery. Failure to make payments could also result in contract terminations that may require the international partner to pay for contract costs.
4.4 Terms of sale
4.4 The Purchaser agrees to the following:
4.4.1 To pay to the the total cost to the of the items even if costs exceed the amounts estimated in this .
4.4.2 To make payment(s) by check or wire transfer payable in U.S. dollars to the Treasurer of the United States.
4.4.3 If specify “”, to forward with this a check or wire transfer in the full amount shown as the estimated Total cost, and agrees to make additional payment(s) upon notification of cost increase(s) and request(s) for funds to cover such increase(s).
4.4.4 If specify payment to be “”, to pay to the such amounts at such times as may be specified by the (including ) in order to meet payment requirements for items to be furnished from the resources of . requests for funds may be based on estimated costs to cover forecasted deliveries of items. Payments are required 90 days in advance of the time plans such deliveries or incurs such expenses on behalf of the Purchaser.
4.4.5 If specify payment by “,” to pay to the such amounts at such times as may be specified by the (including ) in order to meet payments required by contracts under which items are being procured, and any damages and costs that may accrue from termination of contracts by the because of Purchaser’s cancellation of this . requests for funds may be based upon estimated requirements for advance and to suppliers, estimated , , or evidence of constructive delivery, as the case may be. Payments are required 90 days in advance of the time makes payments on behalf of the Purchaser.
4.4.6 If the specify Foreign Military Financing (), the Purchaser will pay to the such costs as may be in excess of the approved funding amount.
4.4.7 If specify “”, that bills may be dated as of the date(s) of delivery of the items, or upon forecasts of the date(s) thereof.
4.4.8 That requests for funds or billing are due and payable in full on presentation or, if a payment date is specified in the request for funds or bill, on the payment date so specified, even if such payment date is not in accord with the estimated , if any, contained in this . Without affecting Purchaser’s obligation to make such payment(s) when due, documentation concerning advance and , estimated , or evidence of constructive delivery or shipment in support of requests for funds or bills will be made available to the Purchaser by upon request. When appropriate, the Purchaser may request adjustment of any questioned billed items by subsequent submission of a discrepancy report.
4.4.9 To pay interest on any net amount by which it is in arrears on payments, determined by considering collectively all of the Purchaser’s open with . Interest will be calculated on a daily basis. The principal amount of the arrearage will be computed as the excess of cumulative financial requirements of the Purchaser over total cumulative payments after quarterly billing payment due dates. The rate of interest paid will be a rate not less than a rate determined by the Secretary of the Treasury taking into consideration the current average market yield on outstanding short-term obligations of the as of the last day of the month preceding the net arrearage and shall be computed from the date of net arrearage.
4.4.10 To designate the Procuring Agency and responsible Paying Office and address thereof to which the will submit requests for funds and bills under this .
4.4.11 Any articles, equipment, materials, supplies, goods, or other commodities purchased with assistance funds appropriated and allocated pursuant to foreign operations, export financing, and related programs appropriations acts in support of this , whether provided directly by the or through procurement contracts or otherwise in support of this , shall be exempt from all value added taxes and customs duties imposed by the recipient country or the full amount of the tax or customs duty must be reimbursed by the Purchaser. This exemption is in addition to any other tax exemption provided by the Purchaser through separate agreements or other means.
The international partner agrees to pay the total cost incurred under the case even if the final amount exceeds the estimated costs provided earlier. The international partner agrees to make payments in accordance with the applicable specified on the .
References
SAMM
- SAMM C9.10.1 — Billing Procedures.
- SAMM C5.6.5.4.1 — Standard Terms and Conditions and Letter of Offer and Acceptance Information.
Related
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
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Terms of Sale (Letter of Offer and Acceptance)
Standard descriptions entered by the Implementing Agency on a Letter of Offer and Acceptance (LOA) that indicate when payments are required and how the LOA is financed (e.g. cash, Foreign Military Sales credit, etc.).
SAMM Glossary, as of 12 September 2026
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LOA — Letter of Offer and Acceptance
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) →
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
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AECA — Arms Export Control Act
SAMM Acronyms, as of 12 September 2026
FMS — Foreign Military Sale
SAMM Acronyms, as of 12 September 2026
Termination Liability (TL) (Foreign Military Sales)
The potential cost for which the U.S. Government would be liable if a particular Foreign Military Sales case that includes procurement contracts is terminated prior to completion.
SAMM Glossary, as of 12 September 2026
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Cash with Acceptance (FMS)
A term of sale in which U.S. dollar currency, check, or other negotiable instrument is submitted by the customer concurrent with acceptance of an Foreign Military Sales sales offer for the full amount shown as the estimated total cost on the Letter of Offer and Acceptance.
SAMM Glossary, as of 12 September 2026
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Cash Prior to Delivery (FMS)
A term of sale in which the USG collects cash in advance of the delivery of defense articles and/or the performance of defense services from DoD resources throughout the life of the case.
SAMM Glossary, as of 12 September 2026
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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
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Dependable Undertaking (FMS)
An excepted term and condition within the Foreign Military Sales case (or Letter of Offer and Acceptance). A firm commitment by a foreign government or international organization to pay the full amount of a contract for new production or for the performance of defense services which will assure the U.S. against any loss on such contract and to make funds available in such amounts and at such times as may be required by the contract, or for any damages and costs that may accrue from the cancellation of such a contract, provided that in the judgment of the DoD there is sufficient likelihood that the foreign government or international organization will have the economic resources to fulfill the commitment.
SAMM Glossary, as of 12 September 2026
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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
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Delivery Forecasts
Periodic estimates of contract production deliveries used as a measure of the effectiveness of production and supply availability scheduling and as a guide to corrective actions to resolve procurement or production bottlenecks. These forecasts provide estimates of deliveries under obligation against procurement from appropriated or other funds.
SAMM Glossary, as of 12 September 2026
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Payment on Delivery (FMS)
An Foreign Military Sales (FMS) term of sale in which the USG issues a bill to the FMS purchaser at the time of delivery of defense articles or the rendering of defense services from DoD resources. This term may only be used pursuant to a written statutory determination by the Director, DSCA, who may find it in the national interest to authorize such payment. Based on presidential action, this term may also be modified to read "Payment 120 Days After Delivery."
SAMM Glossary, as of 12 September 2026
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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
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DFAS-IN — Defense Finance and Accounting Service - Indianapolis
SAMM Acronyms, as of 12 September 2026
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
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