How to Price a Federal Bid, What Fair and Reasonable Means and How Contracting Officers Check Your Numbers
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How contracting officers judge whether your price is fair and reasonable, which price analysis techniques they use, and how to avoid unbalanced line items.
Pricing is where a lot of small businesses lose federal bids they could have won. Some come in so high that the evaluator never gets past the price sheet, while others come in so low that the contracting officer starts to wonder whether the company understood the work at all. Neither mistake is about luck. The Federal Acquisition Regulation, the rulebook most agencies buy under, tells contracting officers how to decide whether a price is acceptable, and once you understand that process you can build a price that survives it. This article walks through what "fair and reasonable" means, the techniques evaluators use to test your numbers, why line items matter as much as the total, and how to do your own homework before you submit.
Everything cited here was read on the date of this post on acquisition.gov, which currently shows the FAR at FAC 2026-01 with an effective date of March 13, 2026. This is a plain-language overview, not legal or accounting advice. Each solicitation sets its own rules, so always follow the instructions in the one in front of you.
The standard every price has to meet
The starting point is FAR 15.402, which tells contracting officers to purchase supplies and services from responsible sources at fair and reasonable prices. The rule then describes what kind of information the contracting officer should collect to reach that conclusion, generally in an order of preference. When a price is based on adequate price competition, the first preference is to ask the offeror for no additional data at all. When more is needed, the contracting officer looks first at data the government already has, then at data from sources other than the offeror, and only then at data from you.
That order of preference is good news for small firms. On most competitive set-aside work you will not be asked to open your books. Your price is judged mainly against the other offers and against what the government already knows about the market. FAR 15.402 also tells contracting officers to request only the data that is actually necessary, noting that unnecessary data requests raise proposal costs and stretch out lead time for both sides.
The same section includes a rule worth remembering when you are tempted to price one contract to make up for another. Contracting officers must price each contract separately and independently, and they may not consider losses or profits realized or anticipated under other contracts. Your bid will be judged on its own.
When competition settles the question
FAR 15.403-1 defines adequate price competition. A price meets that standard when two or more responsible offerors, competing independently, submit priced offers that satisfy the government's requirement, award will go to the best value offer where price is a substantial factor, and there is no finding that the winning price is unreasonable. The rule adds that any finding of unreasonableness must be supported by a statement of the facts and approved at a level above the contracting officer.
On the evaluation side, FAR 15.305 says that normally competition establishes price reasonableness, and that for firm-fixed-price contracts a comparison of the proposed prices will usually satisfy the requirement to perform a price analysis. In plain terms, on a typical competitive fixed-price set-aside, the other offers are your benchmark. If your total sits far above the pack, the evaluator does not need a spreadsheet to notice.
Smaller buys work in a similar way. Under FAR 13.106-3, before any simplified acquisition award the contracting officer must determine that the price is fair and reasonable, basing that on competitive quotations whenever possible. If only one quote comes in, the contracting officer documents price reasonableness using sources such as market research, prices paid on previous purchases, price lists and catalogs, comparison with similar items, personal knowledge of the item, or an independent government estimate. The rule specifically says that a price appearing in a price list, catalog or advertisement does not by itself prove it is fair and reasonable. If you mostly chase smaller orders, our article on micro-purchases and simplified acquisitions explains how those buys are run.
The price analysis techniques evaluators use
FAR 15.404-1 describes price analysis as examining and evaluating a proposed price without evaluating its separate cost elements and proposed profit. It lists example techniques, including comparing the proposed prices received in response to the solicitation, comparing proposed prices with historical prices paid by the government or others for the same or similar items, applying rough yardsticks such as dollars per pound to spot inconsistencies, comparing against published price lists and market prices, comparing against independent government cost estimates, and comparing against prices found through market research. The rule names the first two, competing offers and historical prices, as the preferred techniques.
Historical prices come with conditions. FAR 15.404-1 says a prior price must be a valid basis for comparison, and that it may not be when a lot of time has passed, the terms are significantly different, or the reasonableness of the earlier price is uncertain. The prior price also has to be adjusted for differences in terms, quantities and market and economic conditions. That cuts both ways for you. If the last award for similar work was five years ago and labor costs in your area have climbed since, you can explain the difference in your proposal rather than hoping the evaluator works it out.
Since evaluators look at past prices, you should too. Our walkthrough on researching past contract awards on SAM.gov shows how to find what an agency paid last time, and our guide to reading a SAM.gov contract notice covers where pricing instructions usually appear.
Why your line items matter, not just your total
A common trap is getting the total right while letting individual line items drift. FAR 15.404-1(g) addresses unbalanced pricing. It says unbalanced pricing exists when, despite an acceptable total evaluated price, the price of one or more line items is significantly over or understated. The rule names the riskiest situations: when startup work, mobilization or first articles are separate line items, when base and option quantities are separate line items, and when the evaluated price is the sum of estimated quantities under an indefinite-delivery contract.
Contracting officers must analyze every offer with separately priced line items to see whether it is unbalanced. If it is, they must weigh the risk in the competitive range and source selection decisions, and FAR 15.404-1(g)(3) says an offer may be rejected if the lack of balance poses an unacceptable risk to the government.
Here is a hypothetical example. A small janitorial firm bids a base year and four option years for building maintenance. To look cheap in year one, it prices the base year well below its real costs and loads the shortfall into the option years. The total matches its competitors, but the line items no longer reflect the work. An evaluator applying FAR 15.404-1(g) could see that as unbalanced, because the government would overpay if it exercises the options and the firm could struggle to perform the base year at all. The safer approach is to price each period the way you actually expect your costs to run, with any escalation explained.
Pricing too low is also a risk
Small firms often assume the lowest price wins. Sometimes it does, especially under a lowest price technically acceptable evaluation, which our article on reading Sections L and M explains how to spot. But FAR 15.404-1(d) describes cost realism analysis, which checks whether proposed costs are realistic for the work, reflect a clear understanding of the requirements, and match the methods described in the technical proposal. It is required on cost-reimbursement contracts. On competitive fixed-price contracts, the rule says it may be used in exceptional cases, such as when the requirements may not be fully understood, there are quality concerns, or past experience shows that low proposed costs led to quality or service shortfalls. On fixed-price work the results can feed performance risk assessments and responsibility determinations, though the offered prices themselves are not adjusted.
In practice, an unexplained low price can raise questions about whether you understood the scope or can stay in business through the contract. If your price is low because you have a genuine advantage, such as equipment you already own or a crew already working nearby, say so in your proposal.
When certified cost or pricing data comes into play
Most small set-aside bids never reach this level, but you should know where the line is. FAR 15.403-4 says the threshold for obtaining certified cost or pricing data is $2.5 million for prime contracts awarded on or after July 1, 2018, and that the contracting officer obtains it only when none of the exceptions in FAR 15.403-1(b) apply. Adequate price competition is one of those exceptions. If you ever land a sole-source negotiation above that threshold, expect a much deeper review of your costs, and line up an accountant who knows government contracting before you start.
Build your price before you write your proposal
Put the pieces together and a sensible process emerges. Read the pricing instructions and the evaluation criteria first, so you know whether price is the main factor or one factor among several. Research what the agency paid for similar work and adjust for time and scope. Build your price from your real labor, materials, overhead and profit, then spread it across the line items the way the work will actually happen. Finally, check that your technical proposal and your price tell the same story, because evaluators compare them.
If you lose anyway, ask for a debriefing. Our article on requesting and using a debriefing explains how to learn where your price landed. And once you win, our guide to how federal contractors get paid covers the invoicing side.
You do not have to figure out pricing alone. SBA's page on how to win contracts points to its federal marketplace resources, and the free SBA local assistance network can connect you with counselors who review bids. When you are ready to practice, browse open opportunities on SAM.gov or on our set-aside listings, and pick one with clear line items to price as a dry run.
Helpful reading. For more on pricing government work, see government contract pricing books (Affiliate link) and government contracting for small business books (Affiliate link). As an Amazon Associate I earn from qualifying purchases.
The Set-Aside Desk is published by SetAside Signal, an independent publication, not a government agency. This article isn't legal advice; rules change, so confirm details with the official sources: SBA (sba.gov), SAM.gov and the FAR at acquisition.gov. Published Oct 31, 2026.