FAR and DFARS › FAR Part 16: Types of Contracts › Subpart 16.3

FAR 16.306 Cost-plus-fixed-fee contracts.

The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.

In plain English

This section describes cost-plus-fixed-fee contracts, where the contractor is reimbursed for costs and paid a fixed fee that does not change with actual costs. It explains when such contracts are suitable, such as for research or development when the level of effort is uncertain, and outlines limitations and two basic forms: completion and term. Contractors should understand that this contract type offers only minimal incentive to control costs and that the fee may be adjusted only for changes in the work.

Applies to: Government contractors and contracting officers considering cost-plus-fixed-fee contracts

What it requires

  • The contractor must complete and deliver the specified end product within the estimated cost, if possible, as a condition for payment of the entire fixed fee under the completion form.
  • Under the term form, the contractor must devote a specified level of effort for a stated time period.
  • The contractor must provide a statement that the level of effort specified in the contract has been expended in performing the contract work to receive the fixed fee under the term form.
  • The contractor is obligated to provide a specific level of effort within a definite time period if the term form is used.

Key terms: cost-plus-fixed-fee contract · cost-reimbursement contract · fixed fee · completion form · term form

Written by AI from this section's text. A guide, not legal advice: the text below rules.

The text

(a) Description. A cost-plus-fixed-fee contract is a cost-reimbursement contract that provides for payment to the contractor of a negotiated fee that is fixed at the inception of the contract. The fixed fee does not vary with actual cost, but may be adjusted as a result of changes in the work to be performed under the contract. This contract type permits contracting for efforts that might otherwise present too great a risk to contractors, but it provides the contractor only a minimum incentive to control costs.

(b) Application. (1) A cost-plus-fixed-fee contract is suitable for use when the conditions of 16.301-2 are present and, for example—

(i) The contract is for the performance of research or preliminary exploration or study, and the level of effort required is unknown; or

(ii) The contract is for development and test, and using a cost-plus- incentive-fee contract is not practical.

(2) A cost-plus-fixed-fee contract normally should not be used in development of major systems (see part 34) once preliminary exploration, studies, and risk reduction have indicated a high degree of probability that the development is achievable and the Government has established reasonably firm performance objectives and schedules.

(c) Limitations. No cost-plus-fixed-fee contract shall be awarded unless the contracting officer complies with all limitations in 15.404-4(c)(4)(i) and 16.301-3.

(d) Completion and term forms. A cost-plus-fixed-fee contract may take one of two basic forms—completion or term.

(1) The completion form describes the scope of work by stating a definite goal or target and specifying an end product. This form of contract normally requires the contractor to complete and deliver the specified end product (e.g., a final report of research accomplishing the goal or target) within the estimated cost, if possible, as a condition for payment of the entire fixed fee. However, in the event the work cannot be completed within the estimated cost, the Government may require more effort without increase in fee, provided the Government increases the estimated cost.

(2) The term form describes the scope of work in general terms and obligates the contractor to devote a specified level of effort for a stated time period. Under this form, if the performance is considered satisfactory by the Government, the fixed fee is payable at the expiration of the agreed-upon period, upon contractor statement that the level of effort specified in the contract has been expended in performing the contract work. Renewal for further periods of performance is a new acquisition that involves new cost and fee arrangements.

(3) Because of the differences in obligation assumed by the contractor, the completion form is preferred over the term form whenever the work, or specific milestones for the work, can be defined well enough to permit development of estimates within which the contractor can be expected to complete the work.

(4) The term form shall not be used unless the contractor is obligated by the contract to provide a specific level of effort within a definite time period.

Sections it refers to

Sections that refer to it

  • 35.005 Work statement.
  • 35.006 Contracting methods and contract type.

← 16.305 Cost-plus-award-fee contracts. · 16.307 Contract clauses. →

Rule changes for FAR Part 16

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.

FAR 16.306 Cost-plus-fixed-fee contracts · SpendQuery