Our firm is bidding on a federal facilities maintenance RFP, NAICS 561210. It is a total small business set-aside. The solicitation came out last week, and the deadline is in three weeks. The price volume instructions require a "basis of estimate" for our proposed fixed price. We have a detailed spreadsheet of labor hours by task, calculated from our site visit and the performance work statement. The RFP does not specify a format or required content for the basis of estimate. I am used to seeing this requirement on cost-plus contracts, not firm-fixed-price. We are trying to figure out how much narrative and justification to include. Do evaluators expect a full explanation of how we derived every hour, or is a summary sufficient? Will providing too much detail open us up to a "cost realism" challenge, even on a fixed-price bid?
What is a basis of estimate, and how detailed does it need to be for a fixed-price bid?
Ask a question- A basis of estimate (BOE) explains how you calculated your proposed price, and for a firm-fixed-price bid, it needs to be detailed enough to show your understanding of the work and support the reasonableness of your price.
- Even on a fixed-price contract, the government still wants to understand how you arrived at your numbers, especially since they bear the risk of cost overruns.
- Your detailed spr
2 answers
A basis of estimate (BOE) explains how you calculated your proposed price, and for a firm-fixed-price bid, it needs to be detailed enough to show your understanding of the work and support the reasonableness of your price. Even on a fixed-price contract, the government still wants to understand how you arrived at your numbers, especially since they bear the risk of cost overruns. Your detailed spreadsheet of labor hours by task is a good start. You should include a narrative that explains your methodology, assumptions, and the data sources used to derive those hours. For example, explain how the site visit informed your estimates for specific tasks, or how you translated PWS requirements into labor efforts. While you do not need to justify every minute, providing a clear explanation for significant labor categories or complex tasks helps the evaluators. Providing too much detail on a fixed-price bid generally will not lead to a cost realism challenge because the government is not reimbursing your costs directly; instead, they are evaluating whether your proposed price is fair and reasonable and reflects a sound technical approach. The goal is to build confidence that your firm can perform the work at the proposed price.
Priya, your basis of estimate for a firm-fixed-price bid needs to directly tie back to your proposed technical approach, explaining how your solution is both compliant and achievable within your cost structure. Grace is right that the government wants to see your understanding. For federal buys, the contracting officer will evaluate your price for fairness and reasonableness (FAR 15.404-1) and they will compare your proposed price to other offers, historical prices, and independent government estimates. A detailed narrative for your significant labor categories and a clear explanation of how your labor hours support the PWS requirements will help demonstrate that your technical solution is sound. This is especially true for a total small business set-aside where they want to ensure a capable small business can perform.