A price reasonableness determination is the written conclusion, made by a federal contracting officer before award or modification, that the price the government is about to pay does not exceed what a prudent buyer would pay in the same circumstances. FAR 15.402 requires it on every acquisition, and the officer reaches it by applying price analysis, cost analysis, or cost realism analysis to whatever data the acquisition supports.1eCFR. 48 CFR 15.402 – Pricing Policy For 2026, the data side of that determination is shifting: the certified cost or pricing data threshold for defense contracts jumps from $2 million to $10 million on July 1, and the simplified acquisition threshold sits at $350,000.
The Standard the Officer Has to Meet
FAR 15.402 directs contracting officers to buy from responsible sources at fair and reasonable prices, and it leaves the judgment with the officer on each purchase.2Acquisition.GOV. FAR 15.402 – Pricing Policy There is no single formula. The regulation tells officers to use price analysis, cost analysis, or cost realism as appropriate, and to gather additional data when what they have is not enough to support the conclusion.
A price is reasonable when it does not exceed what a prudent buyer would pay given the circumstances of the acquisition. The determination has to be made before the government is bound. No contract gets signed on a handshake; someone has to show the work.
Price Analysis: The Preferred Route
Price analysis evaluates a proposed price without opening up the contractor’s cost structure. FAR 15.404-1(b) lists seven techniques and puts them in a clear order of preference.3eCFR. 48 CFR 15.404-1 – Proposal Analysis Techniques
The strongest evidence of a fair price is competition. When an agency receives multiple independently submitted proposals that meet the requirement, comparing those prices against each other is the preferred technique, and the FAR treats adequate competition as generally sufficient on its own. When competition is thin or nonexistent, the second preferred technique is comparing the proposed price to historical prices paid for the same or similar item, whether by the government or by commercial buyers. Those comparisons need adjustment for inflation, quantity differences, and changed terms. A price that matched the market two years ago may not match it today, and skipping the adjustment step invites audit findings.
When neither competitive bids nor reliable historical data are available, officers draw from the remaining five techniques as the acquisition warrants:
- Parametric estimating, using cost-per-unit relationships like dollars per pound or per horsepower to flag inconsistencies.
- Published price lists, commodity indexes, or established discount schedules.
- Independent Government Cost Estimates prepared before solicitation.
- Market research on the same or similar items from commercial sources.
- Other non-certified data the offeror provides about its pricing basis.
These five are not ranked among themselves. A sole-source purchase of specialized equipment might lean on parametric estimating; a buy of widely available commercial supplies might rely on published price lists. The officer picks the technique that fits and documents why it supports the price.
When Price Analysis Isn’t Enough: Cost Analysis
Cost analysis goes a layer deeper. Instead of comparing a proposed price to external benchmarks, the officer evaluates individual cost elements and the proposed profit or fee to determine whether they represent what the contract should actually cost if the contractor operates with reasonable efficiency.4Acquisition.GOV. FAR 15.404-1 – Proposal Analysis Techniques This is the typical approach on negotiated contracts where certified cost or pricing data has been submitted.
The regulation gives officers a toolkit: verify the necessity and reasonableness of each proposed cost element, project cost trends from historical data, compare cost elements to the contractor’s actual past costs or to other offerors’ estimates, and confirm that indirect and labor rates align with audited or negotiated figures. Officers also check whether current practices might carry inefficiencies forward.
Technical analysis backs up cost analysis. FAR 15.404-1(e) directs contracting officers to have engineering, science, or management specialists evaluate the types and quantities of proposed materials and the labor hours and skill mix the contractor claims to need. A proposal that looks reasonable on paper can fall apart here. If an engineer determines the contractor proposes 500 hours of senior labor for work a mid-level technician could finish in 200, the officer has concrete grounds to push back.
Profit and Fee Limits
When the negotiation relies on cost analysis, the officer must also evaluate the proposed profit or fee. FAR 15.404-4 requires agencies awarding more than $50 million per year in noncompetitive contracts above $100,000 to use a structured approach that weighs factors like contractor effort, cost risk, and investment in facilities and equipment.5Acquisition.GOV. FAR 15.404-4 – Profit
Statutory caps apply. Research and development work under cost-plus-fixed-fee contracts is capped at 15 percent of estimated cost. Most other cost-plus-fixed-fee contracts are capped at 10 percent. Architect-engineer services for public works are capped at 6 percent of estimated construction cost. When the negotiation is based on price analysis rather than cost analysis, profit analysis is not required, because the market is assumed to have already built a reasonable profit into the competitive price.
Certified Cost or Pricing Data and the 2026 Threshold
When competition is absent and commercial market data is insufficient, the government’s main tool for verifying reasonableness is certified cost or pricing data. The contractor discloses every fact that could reasonably affect price negotiations: labor rates, material costs, overhead allocations, subcontractor quotes, vendor price lists, and any other financial information a buyer would want before agreeing to a price.6eCFR. 48 CFR 15.403-4 – Requiring Certified Cost or Pricing Data
The trigger dollar amount is changing in 2026. For defense contracts entered into on or before June 30, 2026, contractors must submit certified data when the expected price exceeds $2 million. For contracts entered into after June 30, 2026, the threshold rises to $10 million, a fivefold increase enacted by Pub. L. 119-60.7Office of the Law Revision Counsel. 10 USC 3702 – Required Cost or Pricing Data and Certification The same $10 million figure already applies to contract modifications. Subcontracts follow the same split, keyed to when the prime contract was entered into. The transition date matters at the margin: a defense contract awarded June 30, 2026, uses the old $2 million threshold; one awarded July 1 uses the new $10 million threshold. Above the threshold, price analysis alone will not usually carry the determination.
Once a contractor submits the data, it signs a Certificate of Current Cost or Pricing Data confirming the information is accurate, complete, and current as of the date of price agreement or an earlier mutually agreed date as close as practicable to the agreement date.8Acquisition.GOV. FAR 15.403-4 – Requiring Certified Cost or Pricing Data Experienced officers push contractors to sweep the data immediately before signing so nothing has gone stale between proposal and agreement.
When Certified Data Isn’t Required
FAR 15.403-1 prohibits contracting officers from requiring certified data, even above the dollar threshold, in four circumstances:9eCFR. 48 CFR 15.403-1 – Prohibition on Obtaining Certified Cost or Pricing Data
- Adequate price competition, meaning two or more responsible offerors independently submit priced proposals meeting the requirement, award goes to the best-value offeror with price as a substantial factor, and no finding is made that the winning price is unreasonable. For civilian agencies, even a single offer can qualify if the officer reasonably concludes it was submitted with the expectation of competition.
- Prices set by law or regulation.
- Commercial products and services meeting the FAR 2.101 definition.
- A written waiver by the head of the contracting activity, in exceptional cases where price reasonableness can be determined without the data.
Certified data is also never required at or below the simplified acquisition threshold, which increased to $350,000 in 2025.10Federal Register. Federal Acquisition Regulation Inflation Adjustment of Acquisition-Related Thresholds Certified data is the last resort, not the default.
Below the certification requirement, the officer is not flying blind. FAR 15.403-3 requires officers first to look for available data from government or other secondary sources, and if that is insufficient, to require the contractor to submit supporting data that stops short of full certification.11eCFR. 48 CFR 15.403-3 – Requiring Data Other Than Certified Cost or Pricing Data At minimum, the contractor must provide data on prices at which the same or similar items have previously been sold, current enough to support meaningful negotiation. Officers can also demand cost data when price competition is inadequate and price analysis alone will not carry the determination. A contractor that refuses becomes ineligible for award, overridable only by the head of the contracting activity on best-interest grounds.
Commercial Products and Services
Commercial acquisitions do not follow a separate pricing methodology. FAR 12.209 directs contracting officers to establish price reasonableness using the standard techniques from FAR Subpart 15.4, FAR 13.106-3, or FAR 14.408-2, depending on the procurement method.12Acquisition.GOV. 48 CFR 12.209 – Determination of Price Reasonableness The difference is context: officers account for customary commercial terms and pricing practices when evaluating proposals.
Before the commercial pricing techniques apply, the officer confirms the item actually qualifies. FAR 2.101 defines a commercial product as something of a type customarily used by the general public or nongovernmental entities for non-governmental purposes, and that has been sold or offered for sale to the general public.13Acquisition.GOV. FAR 2.101 – Definitions Items evolved from commercial products through technology advances, or that incorporate minor modifications for government needs, can also qualify. Market research under FAR 12.101 is the starting point.14Acquisition.GOV. FAR Part 12 – Acquisition of Commercial Products and Commercial Services
In practice, commercial pricing analysis leans on catalog prices, prior commercial sales data, and published market indexes. High-volume sales to private-sector buyers usually provide strong evidence of reasonableness. Prices set by law need no further analysis. The harder cases are items that are commercial in name but have few comparable market transactions, which pushes officers back toward cost-based techniques that commercial acquisitions were designed to avoid.
What Happens if the Data Is Wrong
When certified cost or pricing data turns out to be inaccurate, incomplete, or not current, the government can recover the overpayment plus interest. FAR 15.407-1 lays out the mechanics: the contracting officer calculates the amount the government overpaid, identifies the date of each overpayment, and applies the Treasury underpayment interest rate for each quarter from overpayment to repayment.15eCFR. 48 CFR 15.407-1 – Defective Certified Cost or Pricing Data
If the defective data was submitted knowingly, the government is entitled to a penalty equal to the full overpayment amount on top of the recovery and interest. Before pursuing penalties, the officer must consult with legal counsel. The demand letter breaks out each component separately: repayment, penalty if any, accrued interest through a specified date, and a statement that interest continues to run until the contractor pays. A voluntary disclosure after award does not waive the government’s right to recover.
Documenting the Determination
The analysis is only as good as the paper trail. FAR 15.406-3 requires the contracting officer to prepare a written record of the negotiation, typically called a Price Negotiation Memorandum, and place it in the contract file.16Acquisition.GOV. FAR 15.406-3 – Documenting the Negotiation The memorandum has to cover the purpose and description of the acquisition, the participants on both sides, the status of the contractor’s estimating, purchasing, accounting, and compensation systems and how that status affected the negotiation, any exception used if certified data was not required above the threshold, the extent of reliance on certified data if it was submitted and how any inaccuracies were handled, a comparison of the proposal against field pricing recommendations, the government’s objective and its final position, the basis for the profit or fee, and an explicit record of how the officer concluded the final price was fair and reasonable. Cost-analysis-based determinations must address each major cost element; price-analysis-based determinations must identify the source and type of supporting data.
An auditor or reviewing official reading the memorandum should be able to follow the officer’s reasoning from raw data to final price without asking questions. Thin documentation invites protests and audit findings even when the price itself was fair. The determination is not complete until the file explains it.