Indefinite Delivery, Indefinite Quantity (IDIQ)

Definition

Indefinite Delivery, Indefinite Quantity (IDIQ) is a contract type under FAR 16.504 that provides for an indefinite quantity of supplies or services during a fixed period. The contract establishes terms and conditions, a ceiling, and (usually) a guaranteed minimum; actual orders are issued as task orders or delivery orders during performance. IDIQs can be single-award or multiple-award (MAC). They are the most common vehicle for long-duration professional-services and IT buys across government, ranging from agency-specific IDIQs to governmentwide GWACs.

Why It Matters

A prime position on a multiple-award IDIQ gives you several years of access to task-order competition without another full source selection. For agencies, IDIQs compress lead time from months to weeks. For contractors, task-order capture (often 30-day turnarounds with page-limited responses) is a specialized discipline — fast, lean, and data-driven — quite different from large-proposal capture. Firms that learn to win at task-order cadence build scalable federal businesses.

Example

A mid-size services firm wins a prime seat on a $2B agency IDIQ with 20 prime holders. Over the 10-year performance period, it competes for ~80 task orders and wins 15 for a total of $140M in revenue, all without submitting another full GSA Schedule or GWAC proposal.

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