A List of the Most Useful Accounts Payable KPIs

In this article, we’ll explore a list of the most useful accounts payable KPIs and explain how each can benefit your organization.

1. Days Payable Outstanding (DPO)

Days Payable Outstanding (DPO) tracks the average number of days a company takes to pay its suppliers. A high DPO indicates the business is taking longer to settle its payables, allowing it to hold onto cash longer, which can be beneficial for cash flow management. However, an excessively high DPO may strain supplier relationships. So, tracking DPO helps businesses balance their cash flow while maintaining good relationships with vendors. 

DPO = (Accounts Payable / Cost of Goods Sold) × Number of Days

2. Accounts Payable Turnover Ratio

The Accounts Payable Turnover Ratio measures how quickly a company pays off its suppliers. A high turnover ratio means the company pays its suppliers frequently, whereas a lower ratio indicates slower payment processing. The AP turnover ratio is a key indicator of how efficiently an organization manages its payables. It provides insight into cash flow and how well a company handles its short-term obligations. Businesses with a high turnover ratio are often seen as more reliable by vendors.

Accounts Payable Turnover Ratio = Total Net Credit Purchases from All Suppliers / Average Accounts Payable

3. Invoice Processing Time

Invoice Processing Time measures the average time it takes for a company to process and approve invoices, from receipt to payment. Long processing times can lead to late payments, damaging supplier relationships and incurring late fees. Tracking this KPI helps ensure that invoices are processed promptly, reducing errors and improving vendor satisfaction.

4. Cost per Invoice

Cost per Invoice measures the cost of processing a single invoice, including labor, systems, and overhead expenses. Tracking the cost per invoice helps businesses identify inefficiencies in their AP process. By reducing the cost of processing each invoice (for instance, through automation), companies can save money and improve the overall efficiency of the department.

Cost per Invoice = Total Expenses by AP department / Number of Invoices Processed

5. Percentage of Invoices Paid On Time

This metric tracks the percentage of invoices paid on or before their due date. Paying invoices on time is crucial for maintaining strong relationships with suppliers. Late payments can lead to additional fees or damaged supplier trust. Tracking this KPI helps ensure timely payments, leading to more favorable terms with vendors and avoiding unnecessary penalties.

6. Number of Invoices Processed per AP Employee

The Number of Invoices Processed per AP Employee KPI measures the productivity of the accounts payable team by tracking how many invoices each employee processes within a given period. This metric allows businesses to assess the efficiency of their AP team. Low productivity may signal a need for additional training, process improvements, or technology investments like automation to streamline workflows.

7. Percentage of Invoices Processed Electronically

This KPI tracks the proportion of invoices processed through electronic means (e.g., through an automated system) versus those handled manually. Automation is key to reducing errors, speeding up invoice processing, and cutting costs. A higher percentage of electronically processed invoices indicates a more modern, efficient AP process that relies less on manual, error-prone procedures.

8. Discount Capture Rate

Some suppliers offer early payment discounts to encourage timely payments. The Discount Capture Rate measures how often a business takes advantage of these discounts. By capturing more discounts, businesses can save money. This KPI helps companies measure how effectively they are managing their cash flow to benefit from early payment opportunities.

Discount Capture Rate = (Number of Discounts Taken / Number of Discounts Available) × 100

9. Duplicate Payments Rate

The Duplicate Payments Rate tracks the percentage of payments made more than once for the same invoice. Duplicate payments can cause unnecessary financial losses and vendor confusion. This KPI helps ensure that internal controls are in place to prevent such costly mistakes, improve accuracy, and safeguard company funds.

10. Supplier Discrepancy Rate

The Supplier Discrepancy Rate tracks the number of times there is a discrepancy between the invoice amount and what was paid to the supplier. High supplier discrepancy rates can indicate issues with invoice verification, approval processes, or communication with vendors. Reducing discrepancies helps avoid disputes and strengthens supplier relationships.

11. Average Time to Approve Invoices

Average Time to Approve Invoices measures the average time it takes for an invoice to be approved within the company, from submission to authorization for payment. Lengthy approval times can delay payments and result in missed discount opportunities. Monitoring this KPI helps ensure that invoices move through the approval process efficiently.

12. Supplier Payment Accuracy

Supplier Payment Accuracy tracks the accuracy of payments made to suppliers, ensuring that the correct amount is paid at the right time to the right party. Payment accuracy is crucial for avoiding disputes and maintaining smooth supplier relationships. Inaccurate payments can lead to late fees, account suspensions, or even litigation. Tracking this KPI helps ensure that payments are processed correctly.

13. Late Payment Rate

The Late Payment Rate tracks the percentage of invoices paid after their due date. This KPI is critical because late payments can lead to several negative consequences for a business. Not only do late payments damage a company’s reputation with vendors, but they can also lead to additional costs in the form of late fees or penalties.

By closely monitoring this KPI, businesses can pinpoint the underlying causes of delays, whether it’s inefficiencies in the approval process, cash flow issues, or communication breakdowns with vendors.

14. Payment Error Rate

The Payment Error Rate measures the number of mistakes made during the payment process, such as incorrect amounts, duplicate payments, or payments sent to the wrong vendor. Errors in payments not only cause financial losses through overpayments or penalties for missed deadlines but also create administrative headaches and damage relationships with suppliers.  Payment errors can result in delays in future deliveries or disruptions in critical business operations if vendors lose trust in the company’s reliability.

15. Vendor Satisfaction Rate

Vendor Satisfaction reflects how content suppliers are with the AP process, from invoicing to payment. It’s often measured through surveys or feedback mechanisms. Satisfied vendors are more likely to offer favorable terms, discounts, and continued business relationships. Tracking this KPI ensures that the AP department maintains high standards in dealing with suppliers, fostering better long-term partnerships.

Conclusion

Monitoring accounts payable (AP) KPIs is essential for improving efficiency, reducing costs, and maintaining healthy supplier relationships. By tracking key metrics such as Days Payable Outstanding and Invoice Processing Time, businesses can manage cash flow effectively while ensuring timely payments. KPIs like the Payment Error Rate and Duplicate Payments Rate help prevent costly mistakes, while the Vendor Satisfaction Rate ensures strong, long-term partnerships with suppliers.

Incorporating a range of AP KPIs allows businesses to streamline operations, reduce errors, and enhance both financial performance and vendor relationships, driving overall success.