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Given the fluctuations and uncertainties in our current economy, organizations are looking for actionable ways to improve cash flow and reduce operational costs.
There has been a marked trend toward increased measurement, reporting, and oversight, with automation and artificial intelligence (AI) driving improved financial analysis.
AP Is Being Tasked to Track Performance
One way to ensure maximum efficiency is to track key performance indicators (KPIs). “KPIs assist AP in identifying bottlenecks, improving productivity, and managing cash flow,” reports Pamela Buda M.B.A. APM, Network Accounts Payable Director, St Luke’s University Health Network.
“The ability to gather data and report depends largely on your ERP system. With certain ERP systems, it is easier to gather your data so you can efficiently and effectively measure and report on your KPIs,” she adds.
This important link between automation and KPI reporting was highlighted in a recent survey by IOFM, which found that over half (52%) of AP solutions acquired since 2019 are already slated for replacement signaling the need for emerging technology to power an AP department’s reporting capability.
“In my organization,” says Buda, we are in the process of converting to a new ERP, because reporting is limited with our current ERP system.”
Identifying the Right KPI Measurements
KPIs, to be most effective, need to be measurable, actionable, and aligned with strategic goals. Based on the data collected with KPI measurement, organizations can make key decisions or set goals to improve processes and procedures.
IOFM asked the members of its AP Advisory Panel to identify the KPIs that they find are most helpful for internal process optimization and provide management with optimal insights into cash flow management, efficiency, and supplier relationships.
The following list of KPIs is provided by IOFM Panelist Gaurav Pahwa, Associate Director- Controller, Wingify. The list also notes what the KPIs measure, why they matter, how they can be calculated, and how often they should be reviewed.
Top Ten KPIs | ||||
KPI | What it Measures | Why Important | How to Calculate | How Often |
Days Payable Outstanding (DPO) | The average number of days the company takes to pay its vendors. | The DPO metric helps assess how efficiently AP manages payables and cash outflows. A higher DPO may improve cash flow, but it must be balanced to maintain good supplier relationships. | DPO = (Accounts Payable/Cost of Goods Sold) × Number of Days | Monthly |
Invoice Processing Time | The average number of days it takes to process an invoice from receipt to payment. | Long processing times can delay payments, affect relationships, or cause missed discounts. This KPI helps identify process bottlenecks. | Measure the time difference between invoice receipt date and payment date. | Monthly |
Percentage of Invoices Paid on Time | The percentage of invoices paid on or before the due date. | Ensures compliance with payment terms, avoids late fees, and supports healthy supplier relationships. | Invoices Paid on Time*100/Total Invoices Paid | Monthly |
Invoice Exception Rate | The percentage of invoices that require manual intervention due to issues (e.g., mismatched PO, missing approvals). | High exception rates increase processing costs and delay payments. Useful for identifying training or system issues. | Divide the number of invoices with exceptions (due to errors, discrepancies, or requiring manual intervention) by the total number of invoices processed, then multiply by 100 to get a percentage. | Monthly |
Early Payment Discounts Captured | The percentage or value of early payment discounts taken versus those offered. | Capturing discounts reflects efficient processes and creates tangible cost savings. | Discounts Captured*100/Total Discounts Available | Monthly or quarterly |
Cost per Invoice Processed | Total cost (labor, system, overhead) to process each invoice. | Important for evaluating the efficiency of the AP function and justifying automation or outsourcing. | Total AP Department Costs/Number of Invoices Processed | Quarterly (since cost data is often reviewed less frequently). |
AP Aging Report (Aged Payables) | Breakdown of outstanding payables by time periods (e.g., current, 1–30 days past due, etc.). | Offers insight into overdue liabilities, helps prioritize payments, and supports cash flow forecasting. | Generate a standard AP aging report using accounting software. | Weekly or biweekly, especially if cash management is a priority. |
Bonus KPI Suggestions | ||||
Duplicate Payments Rate: | Number of Supplier Disputes or Payment Issues: Tracks vendor relationship quality. | Touchless Invoice Rate: |
Additional KPI Suggestions from Participating Panelists* (See listed in Editor’s Note below for contributors):
Key Trends and Challenges in 2025
IOFM is seeing an increased focus on the value of KPI measurement, and it is anticipated that IOFM’s upcoming 2025 Benchmarking Report will reflect that trend.
It is particularly notable that IOFM’s 2024 Benchmarking Report indicated that four out of 10 respondents either didn’t know their DPOs or didn’t track it. However, in IOFM’s discussions with AP Advisory Panelists, nearly all of the respondents are currently measuring DPO in 2025.
IOFM’s Projections for the Coming Months
With a possible recession in sight, organizations will increasingly:
What are you waiting for?