A purchase requisition (often called a purchase request or PR) is an internal document that an employee submits to request permission to buy goods or services on behalf of their organisation. It serves as the initial checkpoint of the procurement workflow, enabling finance teams and department heads to review budgets and approve expenditure before any money is committed.
Crucially, a purchase requisition is not an order placed with a supplier. It is an internal authorisation step that must be approved before procurement can generate and issue an external purchase order.
What is a purchase requisition?
To understand the purchase requisition meaning in day-to-day operations, consider it the primary gatekeeper of company spending. When a team member identifies a business need, such as new IT equipment, marketing software, or professional advisory services, they cannot simply contact a vendor and commit company cash. Instead, they raise a purchase requisition to confirm that the expense is justified and that sufficient budget exists.
Within the broader procure-to-pay (P2P) cycle, raising a requisition happens immediately after specifying what goods or services are required. By capturing the request early, finance teams gain immediate visibility over committed spend before an invoice arrives.
In the UK, structured requisition records also support statutory governance. Under Section 386 and Section 387 of the Companies Act 2006, companies must keep adequate accounting records that explain their transactions and disclose their financial position with reasonable accuracy. Documenting who requested and approved each purchase provides a verifiable paper trail for internal audit reviews. Furthermore, maintaining documented approval controls and segregation of duties helps organisations satisfy the adequate procedures defence under Section 7 and Section 9 of the Bribery Act 2010 by mitigating the risk of unauthorised supplier payments and procurement fraud.
Key components of a purchase requisition form
Whether completed on paper or submitted through procurement software, a purchase requisition form standardises spend information so approvers can make informed decisions. A comprehensive form typically includes:
- Requester information: The name, job title, department, and contact details of the employee raising the request.
- Itemised description: Specific details of the requested goods or services, including quantities, part numbers, technical specifications, and delivery expectations.
- Financial and accounting codes: The designated cost centre and general ledger code to ensure the cost is allocated to the correct departmental budget.
- Commercial estimates: The estimated unit price, total expected expenditure, applicable taxes, and any agreed discount terms.
- Business justification: A clear explanation of why the purchase is necessary for operational or commercial goals.
- Vendor details: The recommended supplier, including whether they are an existing contracted supplier, along with any quotes obtained.
- Authorisation record: Documented sign-off confirming operational necessity and financial approval.
Purchase requisition vs. purchase order
The terms purchase requisition and purchase order are frequently confused, but they serve distinct operational and legal functions in procurement. Understanding the difference between purchase requisition vs purchase order controls is fundamental to sound financial management.
Feature | Purchase requisition (PR) | Purchase order (PO) |
|---|---|---|
Purpose | Requests internal permission to spend budget | Authorises an external supplier to deliver goods or services |
Audience | Internal (line manager, department head, finance) | External (sent directly to the vendor) |
Legal status | Internal document with no legal enforceability | Legally binding contract once accepted by the vendor |
Process timing | Initiated at the very start of the purchasing process | Created only after the requisition receives full approval |
Created by | The department or employee requesting the purchase | The procurement team or automated finance software |
Key details | Business justification, budget codes, and estimated cost | Agreed commercial pricing, delivery terms, and legal terms |
In short, the purchase order vs purchase requisition distinction comes down to internal governance versus external commitment. A requisition asks, "May we buy this?" while an approved purchase order tells the supplier, "Please deliver this under our agreed terms."
The purchase requisition process
A typical purchase requisition process follows five structured stages to ensure financial discipline:
1. Identifying the need and drafting the request
An employee identifies an operational requirement and collects necessary details, such as product specifications and vendor pricing. They create a requisition form, inputting item descriptions, quantities, and appropriate accounting codes.
2. Departmental review and tiered routing
The requisition routes to relevant managers based on the organisation's delegated financial authority framework. For instance, under Brunel University London's scheme of financial delegation, the baseline approval threshold is set for values up to £15,000, requiring authorisation from the Head of Department or Institute alongside a Procurement Category Manager.
3. Finance and budget validation
Finance verifies that the allocated budget has sufficient remaining funds to absorb the cost. This step also enforces segregation of duties across purchasing activities to ensure proper checks and balances.
4. Conversion to a purchase order
Once fully approved, the requisition transfers to the procurement team or an integrated procurement tool. Procurement reviews the commercial terms, confirms the preferred vendor, and converts the internal requisition data into an official purchase order for dispatch to the vendor.
5. Delivery, matching, and settlement
When goods or services arrive, receiving documentation is recorded against the order. Later, Accounts Payable conducts 3-way matching by cross-referencing the supplier invoice against the purchase order and receiving records before releasing payment.
Benefits of a purchase requisition workflow
Implementing a disciplined requisition workflow delivers immediate structural advantages for growing finance teams:
- Curbing rogue spend: Without an upfront request process, employees often make unvetted purchases on corporate cards or submit unexpected expense claims. A structured approval process helps organisations review requests against available budgets and supplier contracts before commitments occur.
- Faster order turnaround: Establishing clear spend rules reduces bottlenecks and administrative queries, allowing procurement teams to validate requirements and issue purchase orders efficiently.
- Accurate budget control: Reviewing expenses at the requisition stage helps reduce the risk of budget overruns, giving finance teams earlier visibility into expected departmental costs before vendor invoices arrive.
- Audit-ready financial trails: Documenting who requested, reviewed, and approved each purchase provides internal records that can help support statutory audit procedures.
Automating the purchase requisition process
Manual, spreadsheet-driven requisition systems often create administrative delays, misplaced paperwork, and frustrated employees. Modern finance platforms eliminate these issues by digitising the entire purchase request workflow.
Automation routes requests instantly to approvers via mobile apps or team communication tools, checking budget limits automatically against general ledger accounts.
Digital workflows also cut processing overhead substantially. According to The Hackett Group's 2019 Performance Metrics report for procurement operations, world-class organisations achieve a cost per purchase order of $4.40, while according to The Hackett Group's 2019 Performance Metrics report for procurement operations, the peer group average cost per purchase order is $15.10. Furthermore, according to APQC benchmarking data (2026), organisations in the 25th percentile spend around $14 to process a purchase order.