What is a IDIQ Contract?

Also known as: Indefinite Delivery/Indefinite Quantity

By the GovPrimer teamUpdated January 1, 2026

An IDIQ (Indefinite Delivery/Indefinite Quantity) contract provides for an indefinite quantity of supplies or services over a fixed period. The agency awards the IDIQ to one or more vendors, then issues task or delivery orders against it as needs arise.

How IDIQs work

Winning an IDIQ doesn't guarantee work — it makes you eligible to receive orders. On a multiple-award IDIQ, holders compete for individual task orders, so being on the vehicle is the entry ticket to a stream of future opportunities.

IDIQs reduce competition at the order level because only awardees can bid, which is why getting on the right vehicles is a core BD strategy.

Frequently asked questions

What's the difference between a single-award and multiple-award IDIQ?

A single-award IDIQ gives all orders to one contractor. A multiple-award IDIQ (MAC) puts several contractors on the vehicle, who then compete for individual task and delivery orders.

Find these opportunities in GovPrimer

Search live SAM.gov opportunities, award data, and set-asides in one place. Free forever plan — no credit card required.