Cost Reimbursable Contracts: Key Exam Concepts
PMBOK v8 Definition
Cost reimbursable contracts involve payment to the seller for all legitimate actual costs incurred for completed work, plus a fee representing seller profit. These contracts often include incentives for cost, schedule, or performance targets. According to PMBOK v8, cost reimbursable contracts may incorporate elements of both fixed-price and cost-reimbursable models or other provisions for flexibility.
Why It Matters for the Exam
Cost reimbursable contracts appear frequently on the PMI exam in questions testing procurement risk allocation, contract type selection, and buyer-seller relationship management. Expect scenario-based questions where you must identify which contract type best suits a project with uncertain scope or high risk, and questions testing your understanding of when the buyer assumes greater cost risk.
Key Points to Remember (for the exam)
- Primary Risk: The buyer bears the greatest cost risk because actual costs are reimbursed regardless of final amount
- Typical Use: Projects with uncertain scope, high complexity, or when the buyer wants maximum flexibility
- Seller Incentive: Seller has less incentive to control costs compared to fixed-price contracts
- Fee Structure: Includes cost reimbursement plus a fee (fixed fee, incentive fee, or award fee)
- Common Subtypes: Cost Plus Fixed Fee (CPFF), Cost Plus Incentive Fee (CPIF), Cost Plus Award Fee (CPAF)
- Documentation Need: Requires detailed cost tracking and auditing by the buyer
- Key Input: The procurement management plan defines which contract type to use
Typical PMI Exam Example
A project manager is developing a contract for a research and development project where requirements are not fully defined. The buyer wants maximum flexibility to change scope during execution. Which contract type should the project manager recommend?
Answer: Cost reimbursable contract, because it allows scope changes while reimbursing the seller for actual costs plus a fee.
PMI Exam Traps
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Trap: Confusing cost reimbursable with fixed-price contracts regarding risk allocation
- Reality: In cost reimbursable, the buyer assumes cost risk; in fixed-price, the seller assumes cost risk
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Trap: Assuming cost reimbursable means unlimited costs
- Reality: Most cost reimbursable contracts include a not-to-exceed (NTE) clause or estimate ceiling
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Trap: Thinking all cost reimbursable contracts have the same fee structure
- Reality: CPFF, CPIF, and CPAF have different fee calculation methods and incentive mechanisms
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Trap: Confusing cost reimbursable with time and materials (T&M) contracts
- Reality: T&M is a hybrid type; cost reimbursable reimburses actual costs plus fee, while T&M pays for labor at fixed rates plus materials at cost
Important PMI Connections
| Related Concept | Relationship Type | Exam Attention Point |
|---|---|---|
| Procurement Management Plan | Input to contract type selection | Defines contract type selection criteria |
| Cost Baseline | Used for cost control | Cost reimbursable contracts may require more frequent baseline updates |
| Risk Register | Risk identification input | High-risk projects often use cost reimbursable contracts |
| Change Management Plan | Complements contract flexibility | Cost reimbursable allows easier scope changes |
Quick Review Questions
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In a cost reimbursable contract, who bears the primary cost risk if actual costs exceed estimates?
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Which cost reimbursable subtype includes a performance-based incentive fee?
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When would a project manager choose cost reimbursable over fixed-price contracting?
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What is the relationship between cost reimbursable contracts and the cost baseline?
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How does a cost plus fixed fee (CPFF) contract differ from cost plus incentive fee (CPIF)?
PMBOK v8 Reference
Section X4.8.2 - Emerging Practices in Procurement Management (Appendix X4)