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Glossary

Accounts Payable & Accounts Receivable

Also called: AP and AR
Accounts payable, or AP, is the tracking and management of money a manufacturer owes to its suppliers and vendors for goods and services received, including bills, due dates and payments. Accounts receivable, or AR, is the tracking and management of money owed to the manufacturer by its customers, including invoices, aging balances and collections. Together, AP and AR give a business a complete picture of its short-term cash obligations and expected cash inflows. 

Quick facts

Category Vendor and customer balance tracking
Used by Manufacturing, medical devices, pharmaceuticals, aerospace, automotive and other production-based industries
Also called AP, AR
Related standards None specific
Related processes General ledger, invoicing software, purchasing software, tax management
Semantic match accounts payable, accounts receivable, AP AR, vendor bills customer invoices

What is Accounts Payable & Accounts Receivable?

Accounts payable tracks what a manufacturer owes to its suppliers and vendors, based on bills received for materials, services or other purchases. It includes recording bill due dates, matching bills to purchase orders and receipts, and processing payments on time to maintain good supplier relationships.

Accounts receivable tracks what customers owe the manufacturer, based on invoices issued for shipped products or services rendered. It includes monitoring outstanding balances, tracking invoice aging, and managing collections for overdue accounts.

Both AP and AR connect directly to the general ledger, since every bill paid or invoice collected affects the organization's overall financial position, and both benefit significantly from automation that reduces manual matching and data entry.

Why is Accounts Payable & Accounts Receivable important?

Accurate accounts payable management protects supplier relationships by ensuring bills are paid on time, avoiding late fees and preserving the goodwill needed to negotiate favorable terms in the future.

Effective accounts receivable management directly affects cash flow, since a business with strong revenue but slow-paying customers can still face liquidity problems if receivables are not tracked and collected promptly.

Connecting AP and AR to purchasing, sales and shipping data reduces reconciliation errors, since bills and invoices can be automatically matched against the underlying purchase orders and sales orders they correspond to.

How does Accounts Payable & Accounts Receivable work?

A typical accounts payable and receivable process includes:

  1. AP: bill receipt. Record vendor bills and match them against purchase orders and receipts.
  2. AP: payment processing. Schedule and process payments based on due dates and terms.
  3. AR: invoicing. Generate customer invoices tied to shipped orders or completed services.
  4. AR: collections. Monitor outstanding balances and follow up on overdue accounts.
  5. Reconciliation. Match payments received or made against the corresponding invoices and bills.
  6. Reporting. Track aging, cash position and outstanding balances for both AP and AR.

Accounts Payable vs. Accounts Receivable

Comparison Accounts Payable Accounts Receivable
Direction Money the organization owes Money owed to the organization
Source Vendor and supplier bills Customer invoices
Key activity Timely, accurate bill payment Timely invoicing and collections

Real-world examples of Accounts Payable & Accounts Receivable

A manufacturer's accounts payable team matches an incoming vendor bill against the original purchase order and receipt, catching a pricing discrepancy before the payment is processed.

A contract manufacturer's accounts receivable team uses aging reports to identify a customer with a consistently slow payment pattern, prompting a conversation about adjusting credit terms.

An electronics company automates the connection between shipped orders, generated invoices and accounts receivable, reducing the time between shipment and cash collection.

Regulations and standards related to Accounts Payable & Accounts Receivable

Accounts payable and receivable are not themselves regulatory requirements, but accurate financial recordkeeping in both areas supports broader financial reporting and audit expectations that apply across most business contexts.

How QT9 helps with Accounts Payable & Accounts Receivable

QT9 ERP AP/AR capabilities

  • Generate invoices automatically from shipping and bills directly from purchasing.
  • Post payments to the General Ledger in real time.
  • Gain tighter control over customer balances and vendor obligations without duplicate entry.
  • Accelerate collections and capture early-payment discounts.
  • Track and manage vendor bills, due dates and payments.
  • Handle invoicing, payments and customer balances with ease.

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Common mistakes with Accounts Payable & Accounts Receivable

Common mistakes include failing to match vendor bills against purchase orders and receipts before payment, risking overpayment or paying for goods that were never actually received in full.

Other problems include inconsistent follow-up on overdue receivables, allowing cash flow problems to develop even when overall sales performance looks healthy.

Frequently asked questions

Accounts payable tracks money the organization owes to its suppliers and vendors. Accounts receivable tracks money owed to the organization by its customers. AP represents outgoing obligations, while AR represents expected incoming cash.
Paying vendor bills accurately and on time helps maintain good standing with suppliers, which can support more favorable pricing, terms and priority during periods of tight supply.
Slow or inconsistent collection of customer receivables can create cash flow problems even when overall sales are strong, making timely invoicing and collections follow-up essential to maintaining liquidity.
Invoice aging categorizes outstanding receivables by how long they have been unpaid, such as current, 30 days, 60 days or 90-plus days overdue, helping prioritize collections efforts on the oldest or highest-risk balances.
Yes. Many ERP systems automate significant portions of AP and AR, such as matching bills to purchase orders, generating invoices from shipments, and posting payments to the general ledger without manual entry.
Matching bills against the original purchase order and receipt helps catch pricing or quantity discrepancies before payment is made, protecting against overpayment or payment for goods never actually received.

Related quality management terms

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Last reviewed: July 21, 2026