Purchase Requisition: What It Is and How to Get It Right

A purchase requisition is the internal request that starts a purchase. Learn what to include, how approvals work, and how it differs from a purchase order.

Purchase Requisition: What It Is and How to Get It Right

Quick answer: A purchase requisition is an internal document an employee raises to request approval to buy goods or services. Once approved, it becomes a purchase order. It captures what is needed, why, how much, and the budget it draws from.

A purchase requisition ("PR") is the first formal step in buying. It is an internal request — the company approving itself to spend — before any commitment is made to a supplier.

What a good requisition contains

  • Item description, quantity, and preferred specification
  • Estimated unit price and total
  • Cost centre or budget line
  • Business justification
  • Required delivery date

Why requisitions matter

Requisitions create an audit trail and enforce budget control before money is committed. They let approvers catch duplicate buys, off-contract spend, and out-of-budget requests early.

Requisition vs purchase order

Purchase requisition Purchase order
Direction Internal request External commitment
Audience Managers / finance Supplier
Legally binding No Yes

A clean requisition process feeds directly into stronger approval workflows and accurate spend analysis.

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Frequently asked questions

What is a purchase requisition?
It is an internal request raised by an employee asking for approval to purchase goods or services. It records the item, quantity, cost, budget line, and justification, and becomes a purchase order once approved.
What is the difference between a requisition and a purchase order?
A requisition is an internal request for approval and is not legally binding. A purchase order is the approved, external commitment sent to a supplier and is binding once accepted.
Who approves a purchase requisition?
Typically a line manager and/or finance, based on the amount and cost centre. Approval thresholds are defined in the company's procurement policy and enforced through approval workflows.

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