Cost-Plus-Fixed-Fee Contract: 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 provides minimum incentive to contractors to control costs.