Independent Government Cost Estimate (IGCE)

Definition

The Independent Government Cost Estimate (IGCE) is the government's internal estimate of what a contract should reasonably cost. Required before solicitation for most awards above the simplified acquisition threshold, the IGCE is developed by the program office and reviewed by the contracting officer. During evaluation, proposed prices are compared against the IGCE to assess realism and reasonableness. IGCEs are protected pre-award; post-award they may be partially disclosed in debriefings or through FOIA.

Why It Matters

Proposals priced dramatically below the IGCE are flagged as potentially unrealistic (buying-in risk); proposals far above may be deemed unreasonable. Understanding the IGCE's likely basis — historical buys, labor-category build-ups, commercial market research — helps contractors price to win while remaining realistic. In debriefings, asking about the IGCE (when possible) sheds light on how close you were and where to adjust for re-competes.

Example

A firm prices a services proposal at $18.2M. The IGCE was $22M. The evaluator flags the contractor's price as potentially unrealistic, triggering a cost-realism probe. The contractor defends the price with detailed labor-mix assumptions and wins, but learns to start closer to the IGCE on similar buys.

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