Glossary
Expenses & Payables

Purchase Order

By: Alec Hollingsworth
Updated:  
June 16, 2025

DEFINITION:

A purchase order is a formal document authorizing a vendor to provide goods or services at agreed terms before payment is made.
A purchase order (PO) is a formal document issued by a buyer to a vendor, specifying the types, quantities, and agreed prices for products or services. It serves as an official offer and, once accepted by the seller, creates a binding contract between both parties. Purchase orders are essential for tracking organizational expenses, ensuring proper authorization before purchases are made, and providing a clear record for both accounting and audit purposes. Nonprofits use POs to manage and control spending, prevent unauthorized purchases, and maintain transparency in their procurement process. The PO typically includes detailed information such as item descriptions, delivery dates, payment terms, and shipping instructions, which helps streamline communication with suppliers and maintain accurate financial records.

Key Takeaways

  • Purchase orders authorize purchases before payment is made.
  • They help nonprofits control budgets and spending.
  • POs support clear documentation for audits.
  • They improve communication with vendors.

Why It Matters

Purchase orders help nonprofits control spending, ensure accountability, and provide clear documentation for financial tracking and audits.

Real World Example

A community food bank needs to buy canned goods from a supplier. Before making the purchase, the finance manager creates a purchase order detailing the items, quantities, prices, and delivery instructions. This document is sent to the supplier, who confirms the order and prepares the shipment. When the goods arrive, the food bank verifies the delivery against the PO, ensuring everything matches. The finance manager then approves the invoice for payment, referencing the original PO for accuracy. This process ensures the food bank only spends what has been authorized and maintains a clear record for future audits.

How Aplos Helps

In Aplos, you can track expenses and payables by entering purchase orders, allowing your nonprofit to manage commitments, control budgets, and simplify reconciliation. The platform helps you link POs to bills and payments for streamlined reporting and transparency.
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Frequently Asked Questions

What is the purpose of a purchase order?

A purchase order authorizes a vendor to provide goods or services and documents the agreement's terms, helping to control spending and maintain accountability.

Is a purchase order legally binding?

Yes, when accepted by the vendor, a purchase order becomes a legally binding contract outlining the obligations of both parties.

How do purchase orders benefit nonprofits?

Purchase orders help nonprofits control budgets, prevent unauthorized spending, and provide a clear audit trail of procurement activities.

How does Aplos manage purchase orders?

Aplos allows users to track and link purchase orders to bills and payments, ensuring accurate expense management and financial reporting.