Fixed Price Incentive Fee (FPIF)
A Fixed Price Incentive Fee (FPIF) contract starts with the same idea as a plain fixed price — an agreed base price for the work — but adds an extra reward called an incentive. An "incentive" is a bonus the seller can earn by hitting agreed performance targets, such as finishing early, beating a cost goal, or exceeding a quality standard.
So the total the buyer pays is the fixed base amount plus whatever incentive the seller earns. The size of the incentive is usually tied to a formula both sides agree on in advance — for example, sharing any cost savings between buyer and seller at a set ratio. This means the seller still carries most of the cost risk, but now has a motivation to perform even better than the minimum.
To read the result, a higher final price often means the seller did something well and earned their bonus, which can be a win for both sides. A project manager uses FPIF when the work is fairly well defined but they want to actively encourage strong performance, not just acceptable delivery.
Think of it like agreeing to pay a driver a set fare, plus a tip if they get you to the airport ahead of schedule. The base fare is guaranteed, but the bonus nudges them to go the extra mile.
Suppose you agree to a base price of $100,000 to develop software, with a deal that any cost savings are split 50/50 between you and the seller (this split is called the "sharing ratio"). The seller's target cost was $90,000, but they finished for only $80,000 — a savings of $10,000. That $10,000 saving is shared: the seller earns a $5,000 incentive on top of their work. The seller is rewarded for being efficient, and you also pocket $5,000 of the savings.
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