IDIQ vs. BPA in Federal Contracting
Contract or agreement, guaranteed minimum or none, and what that means for capture
An IDIQ (indefinite delivery, indefinite quantity) contract is a binding contract with a guaranteed minimum and a stated maximum, under which the government issues task or delivery orders. A BPA (blanket purchase agreement) is an arrangement for repeat purchases. A BPA is not itself a contract, and the government has no obligation until it places an order.
At a Glance
IDIQ
- Legal status: Contract
- Guaranteed minimum: Yes
- FAR basis: 16.504
- Ordering: Task or delivery orders; fair opportunity on multiple-award IDIQs, with exceptions
- Typical use: Larger, complex, or multi-year requirements
BPA
- Legal status: Agreement; each order is the contract
- Guaranteed minimum: No
- FAR basis: 13.303, or 8.405-3 for Federal Supply Schedule BPAs
- Ordering: Calls or orders placed against the BPA
- Typical use: Recurring needs, often commercial items or services
What Is an IDIQ Contract?
An IDIQ establishes a scope, a guaranteed minimum, and a maximum quantity or value, without fixing exactly what will be ordered or when. The government issues task orders for services or delivery orders for supplies over the ordering period.
Single-award IDIQs have one holder. Multiple-award IDIQs have several, and orders among them are generally competed under fair opportunity procedures, subject to limited exceptions. GSA Multiple Award Schedule contracts are themselves IDIQ contracts.
What Is a Blanket Purchase Agreement?
A BPA sets up terms for repeat purchases so an agency can buy recurring needs without running a full competition each time. BPAs come in two main forms: simplified acquisition BPAs under FAR 13.303, and BPAs established against Federal Supply Schedule contracts under FAR 8.405-3.
Schedule BPAs can be large, multi-year vehicles with several holders competing for orders. The feature every BPA shares is that the agreement itself obligates no funds and guarantees no minimum.
What the Difference Means for Capture
Winning a place on either vehicle is a first step. Beyond an IDIQ's minimum, revenue comes from orders, and on multiple-award vehicles those orders are competed again among the holders.
That shapes where capture effort goes. Getting onto a major IDIQ is often a long strategic pursuit followed by a steady stream of task order responses. A BPA can be a faster way into an agency that knows what it wants to buy repeatedly, with the same need to compete for the orders that follow.
A note on the FAR overhaul: the FAR Council is rewriting the regulation under the Revolutionary FAR Overhaul, with proposed rules published in June and September 2026. The distinctions on this page hold, but part and clause numbers may change as final rules take effect. Check the current FAR text before citing a specific section.
Frequently Asked Questions
Is a GSA Schedule an IDIQ?
Yes. GSA Multiple Award Schedule contracts are indefinite delivery, indefinite quantity contracts. Agencies can order directly from them or establish BPAs against them.
Does a BPA guarantee any work?
No. A BPA carries no guaranteed minimum and obligates no funds. The government's obligation begins when it places an order under the BPA.
What is fair opportunity?
Fair opportunity is the requirement, under FAR 16.505, that each holder of a multiple-award IDIQ be given a fair chance to compete for orders above the micro-purchase threshold, subject to specific exceptions.