Procurement questions are the ones most PMP candidates think they have covered. They know the six contract types. They can recite the acronyms. Then the exam puts a real scenario in front of them, and the right answer is not obvious.
The problem is not memorization. Candidates pattern-match on contract names instead of asking the one question that actually decides it: who carries the cost overrun risk?
Get that question automatic, and you can triage most contract scenarios in 15 seconds.
The Risk Direction Rule
Every contract type sits on a risk spectrum. On one end, the seller carries the risk. On the other, the buyer does.
Fixed price contracts shift risk to the seller. The seller quotes a price. If it costs more to deliver, the seller absorbs that. The buyer knows what they will pay before work starts.
Cost reimbursable contracts shift risk to the buyer. The buyer pays actual costs plus a fee. If costs go up, the buyer pays more. The seller is protected from overruns.
Time and Material sits in the middle. The buyer pays hourly rates with no defined end, and no ceiling unless one is written into the contract.
That is the skeleton. Everything else is detail layered on top.
Fixed Price: Three Types, One Condition
Fixed price works only when scope is defined before the contract starts. If you cannot write a statement of work that describes exactly what you are buying, fixed price punishes both sides. The seller will pad the estimate or cut corners when costs climb.
FFP (Firm Fixed Price) is the cleanest version. One number, no adjustments. The seller prices the work, commits to it, and absorbs any overruns. Buyers choose it when they want cost certainty and scope is complete.
FPIF (Fixed Price Incentive Fee) adds a performance layer. The contract sets a target cost, a target fee, and a price ceiling. If the seller comes in under the target cost, they share the savings with the buyer at an agreed ratio. If they go over, they absorb some of the overrun until the ceiling is reached. Above the ceiling, the buyer pays. The incentive is real: sellers who control costs earn more.
FPEPA (Fixed Price with Economic Price Adjustment) covers long-term contracts where inflation is a genuine risk. The base price is fixed, but it adjusts using a published index like the Consumer Price Index. A 3-year contract signed at 2024 labor rates cannot hold through 2027. FPEPA protects both sides from that problem.
Signal words in exam scenarios: “scope is fully defined,” “requirements are complete,” “the SOW is approved,” “the buyer wants cost certainty.”
The trap: Candidates see a multi-year contract and assume cost reimbursable. Duration does not determine contract type. Scope clarity does. A 3-year project with a complete SOW uses fixed price. A 6-month R&D engagement with no defined deliverables uses cost reimbursable. The exam tests this confusion repeatedly.
Cost Reimbursable: When You Cannot Define What You Are Buying
When scope is not yet defined, fixed price is a bad deal for everyone. The seller pads their estimate to protect themselves. The buyer gets an inflated quote for work nobody can fully describe. When costs overrun anyway, the seller cuts corners to stay profitable.
Cost reimbursable removes that problem. The buyer pays actual costs plus a fee. Risk shifts to the buyer, but both sides get a more honest working relationship.
CPFF (Cost Plus Fixed Fee) pays a flat fee on top of actual costs. The fee does not change based on how well or badly the project goes. This is the problem: the seller has no financial reason to control costs. Whether they finish early or late, efficiently or wastefully, the fee is the same. Use CPFF when the type of work is clear but the scope is not, and when measuring performance is not practical.
CPAF (Cost Plus Award Fee) pays a fee determined by the buyer based on performance criteria set in the contract. The final number involves buyer judgment. This motivates the seller but introduces disagreements. It is common in government contracting where subjective performance evaluation is built into the procurement process.
CPIF (Cost Plus Incentive Fee) is the most objective of the three. Target cost and target fee are set at contract start. If actual costs come in under target, buyer and seller split the savings at an agreed ratio. If costs go over, they split the overrun the same way. Everything is calculated, nothing is subjective. When an exam question says the buyer wants to motivate the seller to control costs on a fuzzy-scope project, CPIF is almost always the answer.
Signal words in exam scenarios: “requirements are still evolving,” “R&D project,” “scope will be refined during execution,” “the buyer needs flexibility.”
T&M: Short-Term, Staff Augmentation, or Small Undefined Work
Time and Material pays at agreed hourly rates plus material costs. There is no fixed end. The buyer keeps paying until the work is done or the engagement ends.
T&M fits short-term engagements, staff augmentation, consulting for discrete tasks, or any work where the scope is too small or too undefined to structure a full cost reimbursable contract.
Risk sits with the buyer. Without a “not to exceed” clause, T&M has no ceiling. A well-written T&M contract includes an NTE cap to limit buyer exposure.
Signal words in exam scenarios: “hourly rate,” “staff augmentation,” “consulting services for a short period,” “small tasks with undefined scope.”
The trap: Candidates see “buyer bears risk” and reach for cost reimbursable when T&M is the right answer. The difference is scope size and duration. T&M is for small or short work. Cost reimbursable is for large projects with undefined deliverables. The exam will describe both situations and expect you to know which structure fits.
The 15-Second Triage
When a contract scenario appears, run this list top to bottom and stop when you have an answer:
- Is scope fully defined? Yes: fixed price family. No: cost reimbursable or T&M.
- Is this small, short, or staff augmentation? Yes: T&M.
- Is this long-term with inflation risk and defined scope? Yes: FPEPA.
- Does the buyer want cost motivation on undefined scope? Yes: CPIF.
- Is performance subjective and hard to quantify? Yes: CPAF.
- No incentive alignment needed on undefined scope? Yes: CPFF.
- Incentive alignment on defined scope with a ceiling? Yes: FPIF.
Most scenarios resolve at step 1 or 2. Steps 3 through 7 handle the edge cases.
The Cognitive Trap Behind Wrong Answers
Candidates who studied hard default to fixed price. Scope always seems definable after you read a scenario twice. You can picture what the finished product looks like. So you assume the scope was clear enough for fixed price.
That is the bias. You are reading the scenario after the project is described. PMI writes questions from the perspective of the PM at the moment the contract decision was made. At that moment, were the requirements complete?
If the scenario says “requirements are still being gathered” or “the team will refine scope during execution,” that is cost reimbursable territory. It does not matter how clearly the final product is described later in the same paragraph. The description of the end state is not the same as a complete requirements document.
Candidates who passed with AT scores on multiple domains report that slowing down on contract questions, specifically asking “who bears the risk” before touching the answer choices, is the single adjustment that moved their procurement accuracy the most.
Pattern-matching on contract names is fast. It is also wrong about 1 in 3 times on this category. The triage takes 15 seconds. It is worth it.
One Practice Scenario
A government agency needs a new IT security system. Technical requirements are not finalized because regulations are still being written. The project is expected to take 18 months. The agency wants the vendor to have a financial reason to control costs.
Which contract type fits?
Not fixed price: scope is not defined. Not CPFF: no cost incentive. Not T&M: 18 months is not a short engagement.
The answer is CPIF. The buyer absorbs the risk of unclear scope. The vendor has a financial reason to keep costs down because savings are split.
If the same scenario had said “requirements are complete and the agency wants to minimize procurement complexity,” the answer shifts to FFP. Same duration, different scope clarity, different contract.
What to Lock In
You do not need to memorize six definitions cold. You need three things to be automatic:
- Risk direction: Fixed price = seller risk. Cost reimbursable and T&M = buyer risk.
- Scope clarity: Defined scope = fixed price. Undefined scope = cost reimbursable or T&M.
- Incentive alignment: Cost motivation on fuzzy scope = CPIF. Cost motivation on defined scope = FPIF. Subjective performance = CPAF. No incentive needed = CPFF.
Everything else follows. The triage runs in 15 seconds once those three are automatic.
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