Price-to-win (PTW)

A price-to-win analysis answers a narrow question: given how this buyer will score price, what price maximises our probability of award? The answer is often not the lowest price you could bear, and sometimes it is higher than the price you would have offered by instinct.

Start from the scoring formula, not the cost sheet

Buyers publish how price will be treated, and the treatment varies enormously. Price may be a stated percentage of the total score, or a pass/fail affordability cap, or the tie-break on quality, or scored on a formula that references the lowest bid, the mean bid or the budget. In US federal solicitations, FAR 15.204-5(c) requires Section M to identify all significant factors and subfactors and their relative importance, so the weighting is in the document. Under the UK Procurement Act 2023 the authority must set award criteria and indicate their relative importance, and each supplier that submitted an assessed tender receives an assessment summary under section 50 showing how it scored against each criterion.

Once you have the formula, the analysis is arithmetic. If price carries 30% and quality 70%, you can compute what a 5% price reduction is worth in points, and what quality margin a cheaper competitor would need to overtake you. On a formula scored against the lowest bid, cutting price below the likely lowest bidder buys you nothing at all. On an affordability cap, everything below the cap scores the same and the discount is a gift.

Why it is not the same as bidding low

Two mechanisms punish a price set purely by going low.

Cost realism. FAR 15.404-1(d)(1) defines cost realism analysis as independently reviewing and evaluating specific elements of each offeror's proposed cost estimate to determine whether the estimated costs are realistic for the work, reflect a clear understanding of the requirements, and are consistent with the technical proposal. It shall be performed on cost-reimbursement contracts (FAR 15.404-1(d)(2)), and where it is performed the probable cost — the evaluator's view of what the work will really cost — is what is used for evaluation. In other words, an unrealistically low bid can be evaluated at a higher figure, and simultaneously read as evidence you have misunderstood the requirement. In the fixed-price situations addressed at FAR 15.404-1(d)(3), proposals are evaluated using the solicitation's criteria and offered prices are not adjusted as a result of the analysis — but the technical doubt remains.

Abnormally low tenders. Under section 19(3)(c) of the UK Procurement Act 2023 a contracting authority may disregard a tender offering a price it considers abnormally low. Before doing so it must notify the supplier and give it a reasonable opportunity to demonstrate it can perform the contract at that price (section 19(4)); if the supplier demonstrates this to the authority's satisfaction, the tender may not be disregarded on that ground (section 19(5)). So an aggressive price is survivable — but only if you can evidence how you will deliver at it, and you will be asked at short notice.

What goes into the analysis

The buyer's budget, where it can be established from published business cases, funding announcements or prior award values. Historical award prices for comparable contracts, which are public in most markets through contract award notices. The incumbent's current contract value and how it has moved through variations. Your own cost base at the volumes and service levels specified. And a structured estimate of what the two or three most likely bidders can afford, based on their scale, labour model, and whether they need this contract for reference or utilisation reasons.

None of this is precise. The output is a range with a most-likely point, not a number to two decimals.

What to do about it

Do the analysis before the solution is frozen. Price-to-win only creates options while scope, staffing mix, delivery locations and risk allocation can still change; after the solution is locked, the only lever left is margin, which is the worst one.

Read the price scoring formula on day one and model it in a spreadsheet with your realistic competitors' prices as variables. Pull award notice history for the buyer and for the category. Set a walk-away price at the bid/no-bid gate and record it, so that the last-week conversation is a decision against an agreed floor rather than a negotiation with yourself. Take the analysis to a commercial review alongside the delivery cost build, and resolve any gap by changing the offer, not by shaving the margin quietly.

And write down why your price is what it is. If the buyer asks — under an abnormally low tender challenge, or in clarification — you will need that reasoning in a hurry.

A note on the term

"Price-to-win" is commercial practice vocabulary with no statutory or standards-body definition, and the modelling methods sold under the name vary widely in rigour. The evaluation and pricing rules cited above are authoritative; the analytical framework around them is convention.

Related terms

• Bid/no-bid decision
• Capture planning
• Colour team reviews (Blue, Pink, Red, Green, Gold, White)
• Win theme

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