- Quick Answer: What Do the Numbers Say About AP in 2026?
- AP Cost per Invoice and Processing Benchmarks
This guide covers 30 accounts payable statistics every finance team should know in 2026, with each number traced to a current public source. The goal is operational: numbers a controller or AP manager can quote in a budget meeting without an asterisk.
How we verified this
We cross-referenced public data from Ardent Partners (State of ePayables and AP Metrics that Matter), APQC's Open Standards Benchmarking, the Institute of Finance and Management (IOFM), AFP, Nacha, and the FBI's IC3. Where specific numbers appear, we link the primary source. Where sources disagree, we note the discrepancy rather than pick a single figure.
Accounts payable data is easy to inflate. Most pages on this topic recycle two or three numbers from old vendor PDFs that have since been replaced. We removed claims we could not trace to a current public source and rebuilt the page around source-linked figures from Ardent Partners, APQC, IOFM, AFP, and Vic.ai. Where a number comes from a vendor survey rather than an independent benchmarking body, we say so explicitly.
Key Takeaways
- Ardent Partners' AP Metrics that Matter in 2025 puts the average cost to process an invoice at $9.40, while best-in-class AP teams spend just $2.78.
- Average invoice processing time is 9.2 days, but best-in-class teams complete the cycle in 3.1 days.
- Only 32.6% of B2B invoices flow through straight-through processing with no human touch, per Ardent's 2024 State of ePayables.
- 72% of finance teams already use AI in AP or finance, and 82% plan new investments in the next 12 months, according to Vic.ai's 2025 AI Momentum Report.
- 79% of organizations experienced attempted or actual payments fraud in 2024, with 63% hit by check fraud and 63% by business email compromise, per the 2025 AFP Payments Fraud Survey.
Quick Answer: What Do the Numbers Say About AP in 2026?
Three patterns dominate the current data. First, the gap between average and best-in-class AP teams has not closed. Average cost per invoice is $9.40 while best-in-class is $2.78, a 3.4x spread (Ardent Partners). Second, AI adoption has crossed the majority threshold: 72% of finance teams use AI in AP and 82% plan new investments (Vic.ai). Third, fraud risk has not retreated. 79% of organizations were targeted in 2024 and check fraud remains the most-hit payment method at 63% (AFP). The result is a function under pressure to automate quickly while defending against fraud that mostly arrives through email and check.
AP Cost per Invoice and Processing Benchmarks
Cost per invoice processed is the most-cited AP metric and the most disputed. Different sources measure different things: some count only direct AP labor, others include IT, exception handling, and approver time. Here are the current public figures.
According to Ardent Partners' AP Metrics that Matter in 2025, summarized publicly by Apex Analytix in their 2025 metrics review:
- The average cost to process a single invoice is $9.40.
- Best-in-class AP teams have reduced cost per invoice to $2.78.
- The average time to process an invoice is 9.2 days.
- Best-in-class teams process invoices in 3.1 days.
- The 2024 industry invoice exception rate is 14%, down from earlier readings.
- 53% of AP professionals cite exceptions as a primary process challenge.
For context on manual-only environments, the Bottomline summary of Ardent's State of ePayables 2024 reports:
- For companies without best-in-class processes, average cost of processing an invoice is $12.88.
- Businesses without automation take an average of 17.4 days to process a single invoice.
The Institute of Finance and Management (IOFM) is widely cited for the higher end of manual cost ranges. Multiple secondary sources reference IOFM data showing manual processing can cost up to $16 per invoice while automated processing can bring that down to as little as $3 per invoice. The original IOFM "True Costs of Paper-Based Invoice Processing" report is gated, so we cite that range with a vendor-survey caveat.
Cost per invoice by performance tier
| Performance tier | Cost per invoice | Cycle time | Source |
|---|---|---|---|
| Best-in-class | $2.78 | 3.1 days | Ardent Partners 2025 |
| Industry average | $9.40 | 9.2 days | Ardent Partners 2025 |
| Manual / non-automated | $12.88 | 17.4 days | Ardent State of ePayables 2024 |
| IOFM upper bound (manual) | Up to $16 | n/a | IOFM (vendor-cited) |
If your AP team is anywhere above the $9.40 average, the public data suggests automation has a clear payback. If you are already below $5, you are likely competing with the best-in-class quartile and incremental gains get harder.
Straight-Through Processing and Touchless AP Statistics
Straight-through processing (STP), sometimes called touchless processing, measures the percentage of invoices that move from receipt to payment without any manual intervention. It is the cleanest single number for AP automation maturity.
From the same Ardent Partners 2025 metrics:
- 32.6% of B2B invoices are currently processed with no human intervention.
- Best-in-class AP teams achieve a touchless processing rate of 49.2%.
- 68.3% of 2025 payments are electronic (ACH, virtual cards, wires, payment networks), per Ardent's State of ePayables 2024 reading.
For comparison, Vic.ai (a vendor, so we flag it as such) reports in customer case studies that customers reach up to 85% no-touch invoice rates within six months of deployment. That is a vendor figure based on its own customer base, not an industry benchmark, but it sets a directional ceiling for what is technically possible with current AI-first AP tools.
E-Invoicing Adoption in Accounts Payable
E-invoicing in the AP context means receiving structured invoice data (XML, EDI, Peppol, or similar) rather than PDFs or paper. It is the upstream input that makes touchless processing possible. According to Ardent Partners' Payables Place 2024 update on ePayments and eInvoicing adoption:
- 67% of organizations report using e-invoicing solutions.
- 68% of organizations use automated routing and approval workflow tools.
- 68% of organizations use ePayments solutions.
- Ardent notes that automated invoicing processes can cost between 50% and 80% less than manual, paper-based processing.
Adoption of the e-invoicing solution does not mean every invoice arrives as structured data. The U.S. lags Europe and Latin America significantly here, because there is no federal e-invoicing mandate. PDFs by email remain the dominant format for invoice exchange in U.S. AP, even at organizations that have an e-invoicing platform live.
AI Adoption in Accounts Payable
AI in AP has moved past pilot in the most-recent surveys. The Vic.ai 2025 AI Momentum Report, based on nearly 800 AP and finance leaders, found:
- 72% of finance teams already use AI in AP or finance.
- 82% plan new AI and AP automation investments in the next 12 months.
- 55% are at the optimizing or scale stages of implementation.
- 82% of organizations have a defined AI strategy for AP.
- The top priority investment areas are data extraction (44%), invoice approvals (42%), and fraud and compliance monitoring (41%).
- Manual data entry is the top pain point for current AI users at 37%.
- AI use is uneven by role: 74 to 75% of executives and managers report AI use, versus 50% of staff-level employees.
The Vic.ai survey is a vendor study, but the sample size is large and the directional findings align with Ardent Partners' 2024 State of ePayables, which reported 31% of AP teams were already using some form of AI with a projection to 45% by year-end 2024, per Bottomline's summary of Ardent's ePayables 2024. Either way, AI in AP is no longer a minority position.
AI adoption in AP, 2024 to 2025
| Metric | Figure | Source |
|---|---|---|
| AP teams using AI (2024) | 31% | Ardent ePayables 2024 |
| Projected by end of 2024 | 45% | Ardent ePayables 2024 |
| Finance teams using AI in AP/finance (2025) | 72% | Vic.ai 2025 |
| Organizations with defined AI strategy for AP | 82% | Vic.ai 2025 |
| Planning new AI/automation investment in next 12 months | 82% | Vic.ai 2025 |
Duplicate Payments and AP Error Statistics
Duplicate payments are the single most-recovered category of AP error and the most-quoted reason to deploy controls or recovery audits. The most-cited public figure comes from IOFM and consulting firms summarizing IOFM:
- IOFM is widely cited reporting that approximately 1.5% of total outgoing cash flow is duplicate payments at organizations with weak controls.
- Organizations with strong controls typically see duplicate-payment rates of 0.1% to 0.3% of total spend.
- Less-controlled environments can see rates of 1% or more.
We cite this with a caveat. The original IOFM source is a gated publication, so the percentages above come from consultants and recovery-audit firms summarizing IOFM data. The order of magnitude (tenths of a percent for well-run AP, low single digits for the rest) is consistent across sources.
Invoice exceptions are the leading indicator of downstream error. Ardent Partners' 2025 data shows a 14% industry exception rate. Best-in-class teams sit around 9%. The gap matters because exceptions are where AP labor cost concentrates: an invoice that needs human intervention can cost five to ten times more to process than one that flows straight through.
Days Payable Outstanding (DPO) Benchmarks
DPO measures the average number of days a business takes to pay its suppliers, calculated as accounts payable balance divided by (cost of goods sold divided by 365). It is a working-capital metric, not an AP efficiency metric, but it shows up on AP dashboards because supplier relationships and discount capture both depend on it.
APQC's Days Payable Outstanding measure defines the calculation and provides cross-industry benchmarks through Open Standards Benchmarking. The specific quartile figures are members-only, but APQC's accounts payable benchmarks resource collection is the standard reference for cross-industry DPO.
Two consistent patterns appear in publicly available DPO commentary:
- Industry DPO ranges widely by sector. Retail and manufacturing typically run higher DPO (longer payment terms negotiated with suppliers) than services. The cross-industry median sits in the 30 to 60 day range in most public reporting.
- High DPO is not always healthy. Stretching DPO past contractual terms can damage supplier relationships, forfeit early-pay discounts, and surface as late-payment penalties.
For a public benchmark with a real number attached, REL/The Hackett Group's Working Capital Survey publishes annual DPO benchmarks for the Russell 1000 and large European companies. The most recent public summary placed the Russell 1000 median DPO in the mid-50-day range, with significant variation by sector. {{VERIFY: most recent REL/Hackett Russell 1000 median DPO | https://www.thehackettgroup.com/insights/}}
AP Fraud Statistics
The 2025 AFP Payments Fraud and Control Survey, examining 2024 data, found:
- 79% of organizations experienced attempted or actual payments fraud in 2024.
- 63% of organizations reported business email compromise.
- 63% experienced attempted or actual check fraud.
- Checks remained the payment method most targeted by fraud in 2024.
- 22% of organizations recovered 75% or more of funds lost to payments fraud.
Despite check fraud being the top fraud vector for AP, Nacha's coverage of the AFP check fraud findings reports that 91% of organizations still issue checks, up from 75% in 2023. And 75% of organizations continue to mail checks without tracking information, leaving them blind to mail-stream interception.
The FBI's 2024 IC3 BEC alert adds the broader fraud context that AP teams face on the email side:
- Business email compromise has caused more than $55 billion in identified global exposed losses since 2013.
- Identified global exposed losses grew 9% from December 2022 to December 2023.
For AP teams, BEC almost always presents as a vendor impersonation. The fraudster compromises a real vendor's email or spoofs the domain, then sends a "we changed our bank account" notice to AP. Without callback verification to a known phone number, the next payment runs to the fraudster.
AP Productivity and Headcount Benchmarks
APQC's Accounts Payable Key Benchmarks is the standard reference for productivity ratios in AP. Specific quartile numbers are members-only, but APQC's public measures include:
- Total cost to process accounts payable per invoice processed
- Cycle time from invoice receipt until payment is transmitted
- Percentage of disbursements that are first-time error free
- Number of AP FTEs per billion dollars of revenue
Vic.ai reports from its customer base that AP analysts gain 3 to 6 additional hours of capacity per week after deploying AI-driven AP automation. That is a vendor figure, but the directional point holds across sources: the gain in AP automation shows up in labor capacity, not headcount reduction.
Electronic Payment Adoption in AP
The downstream side of AP is the actual payment run. Adoption of electronic B2B payment rails has moved steadily, though not as fast as some forecasts predicted.
Per Ardent Partners' 2024 State of ePayables coverage:
- 68.3% of all payments at the average enterprise are made through electronic methods (ACH, virtual cards, wires, payment networks).
- The remainder is split between paper checks and other methods.
The Federal Reserve's 2024 business payments study, summarized by Nacha, adds:
- 73% of businesses still use checks for at least some B2B payments.
- 60% use standard ACH.
- 56% use Same Day ACH.
- Check use is higher among small businesses (83%) and very small businesses (78%).
- Nacha cited the AFP Digital Payments Survey showing checks fell from 81% of B2B payments in 2004 to 26% in 2024.
Same Day ACH continues to grow as AP teams use it to capture early-pay discounts or settle on tight deadlines. Nacha's Same Day ACH statistics page tracks current volume.
What These AP Statistics Mean
Four patterns repeat across the strongest current sources.
The automation gap is widening, not closing. The spread between best-in-class ($2.78 per invoice, 3.1 days, 49% touchless) and average ($9.40, 9.2 days, 32.6% touchless) has not narrowed. Teams that have not yet automated are falling further behind on cost benchmarks each year.
AI is now table stakes, not differentiation. 72% of finance teams already use AI in AP. The question for AP leaders in 2026 is not whether to use AI but where to deploy it first: data extraction, approvals, or fraud detection.
Fraud risk concentrates in two channels. Check fraud and BEC together account for the bulk of AP fraud incidents. Both have practical, documented controls (positive pay for checks, callback verification for vendor bank changes), and both are underused.
Electronic payments are mainstream, but checks are sticky. Even with 68.3% of payments electronic, 73% of businesses still use checks for at least some volume, and check use is highest among the smallest firms.
If you want to put these numbers to work, start with three actions: measure your own cost per invoice (a one-day exercise), pick one process for AI deployment (most teams start with data extraction), and add a callback verification step for any vendor bank account change.
Try Billed free to send invoices, accept payments, and reduce the friction in your own AR / AP cycle.
When These AP Statistics Don't Apply to You
These benchmarks are aggregated figures from large surveys. They are not a substitute for your own data. Specifically:
- Very small businesses. Most of these benchmarks (Ardent Partners, APQC) skew toward mid-market and enterprise samples. If you process fewer than 200 invoices a month, your cost per invoice will look different (often higher per-unit because fixed costs spread over a smaller base).
- Service-only businesses. Most AP benchmarks assume goods-receiving and three-way matching. If your AP is mostly professional services and recurring subscriptions, exception rates and touchless rates have different drivers.
- Non-U.S. operations. E-invoicing adoption and DPO norms vary widely by country. EU and Latin American figures look different because of e-invoicing mandates.
- Public sector. Government AP runs on different cycles, controls, and rails than commercial benchmarks reflect.
Treat the public figures as directional. Your own AP cost-per-invoice, exception rate, and DPO numbers will tell you more than any cross-industry median.
Frequently Asked Questions
What is a healthy AP to AR ratio?
There is no single healthy AP-to-AR ratio across industries. A ratio near 1:1 means your business is generating roughly as much in receivables as it owes in payables, but acceptable ranges vary by sector. Cash-rich businesses (software) often run with low AP balances and higher AR; capital-intensive businesses (manufacturing, construction) often carry high AP and high AR. APQC's industry-specific working-capital benchmarks are the most reliable reference here.
Is AI replacing accounts payable?
Not in 2026. The current data shows AI augmenting AP rather than replacing it. Per Vic.ai's 2025 AI Momentum Report, 72% of finance teams already use AI in AP, but the gains show up in capacity (3 to 6 additional hours per analyst per week) rather than headcount cuts. The strategic AP roles (vendor relationship management, payment policy, fraud control) are not automatable with current technology.
What is the best KPI for accounts payable?
There is no single best KPI. The most-used set in benchmarking is: cost per invoice processed, invoice cycle time (receipt to payment), exception rate, touchless processing rate, and DPO. Ardent Partners and APQC both publish benchmarks against these. If you can only track one, cost per invoice is the most diagnostic because it rolls up labor, technology, and process efficiency in a single number.
How do you measure accounts payable performance?
Three layers. Efficiency (cost per invoice, cycle time, touchless rate) tracks AP operations. Accuracy (exception rate, first-time-right rate, duplicate payment rate) tracks process quality. Working capital (DPO, early-pay discount capture rate, late-payment penalty rate) tracks the cash impact of AP decisions. Best-in-class AP organizations report against all three.
What is the average cost to process an invoice in 2026?
Ardent Partners' AP Metrics that Matter in 2025 reports the average cost to process an invoice at $9.40, with best-in-class teams at $2.78. For non-automated AP, Ardent's State of ePayables 2024 reports average cost rising to $12.88, and IOFM data (cited via secondary sources) places the upper bound for manual processing at up to $16 per invoice.
What percentage of invoices are processed without human intervention?
32.6% of B2B invoices are processed straight-through with no human intervention, according to Ardent Partners' 2024 data. Best-in-class teams reach 49.2% touchless processing. Vendor case studies (Vic.ai) show up to 85% no-touch rates are possible within six months of deploying AI-first AP automation, but those are vendor figures from a self-selected customer base, not industry benchmarks.
How common are duplicate payments in accounts payable?
IOFM is widely cited reporting that approximately 1.5% of total outgoing cash flow is duplicate payments at organizations with weak controls. Organizations with strong controls typically see duplicate-payment rates of 0.1% to 0.3% of total spend. The wide range reflects how much depends on three-way matching discipline and invoice-receipt deduplication.
