Invoice Error Statistics
Last updated: June 2026 · 5 sourced statistics
Errors are where invoice processing costs hide. An invoice that fails matching — wrong PO number, price mismatch, missing data — costs multiples of a clean one to resolve and stalls payment for days. Sources below include Ardent Partners, GBTA, and IOFM.
Key takeaways
- Roughly a quarter of invoices trigger processing exceptions (Ardent Partners).
- Exception handling is a key driver of the $12.88 average per-invoice cost.
- 19% of expense reports contain errors, each costing about $52 to correct (GBTA).
At a glance
Every figure on this page in one table, each linked to its named source. Scroll down for the full context behind each number.
| Figure | What it measures | Source | Year |
|---|---|---|---|
| ~25% | Roughly one in four invoices triggers an exception requiring manual intervention, per Ardent Partners' AP benchmarking. | Ardent Partners, State of ePayables | 2025 |
| $12.88 | The $12.88 average cost per invoice is driven largely by exception handling — best-in-class teams with low exception rates pay 79% less (Ardent Partners). | Ardent Partners, AP Metrics that Matter | 2025 |
| 19% | 19% of expense reports contain errors, and correcting one takes 18 minutes and costs $52 on average, per GBTA Foundation research. | GBTA Foundation | 2015 |
| ~0.1–0.5% | Duplicate payments typically run at a fraction of a percent of AP spend — which still means real losses at scale, per IOFM analyses (0.1% of $100M is $100K). | Institute of Finance & Management (IOFM) | 2023 |
| +14 days | Exception invoices take days longer to process — contributing to the 17.4-day average cycle time vs 3.1 days for best-in-class teams (Ardent Partners). | Ardent Partners | 2025 |
The statistics
Roughly one in four invoices triggers an exception requiring manual intervention, per Ardent Partners' AP benchmarking.
Source:Ardent Partners, State of ePayables2025
The $12.88 average cost per invoice is driven largely by exception handling — best-in-class teams with low exception rates pay 79% less (Ardent Partners).
Source:Ardent Partners, AP Metrics that Matter2025
19% of expense reports contain errors, and correcting one takes 18 minutes and costs $52 on average, per GBTA Foundation research.
Source:GBTA Foundation2015
Duplicate payments typically run at a fraction of a percent of AP spend — which still means real losses at scale, per IOFM analyses (0.1% of $100M is $100K).
Source:Institute of Finance & Management (IOFM)2023
Exception invoices take days longer to process — contributing to the 17.4-day average cycle time vs 3.1 days for best-in-class teams (Ardent Partners).
Source:Ardent Partners2025
When these numbers don't apply
Aggregate statistics hide a lot. Read these caveats before quoting a figure as if it describes your specific situation.
- Exception rates depend heavily on PO discipline and supplier data quality — well-run shops run far below 25%.
- The GBTA expense-report figures date to 2015 and likely understate today's labor costs.
- Duplicate-payment rates (0.1-0.5% of spend) are small in percentage terms but large in dollars at scale.
How we compiled this data
Compiled June 2026 from Ardent Partners' AP research, GBTA Foundation studies, and IOFM benchmarking. The GBTA expense-report study is older but remains the standard citation; consult linked sources for updates.
We hand-collected each figure from its original publisher rather than recycling secondary round-ups, cross-checked the headline numbers against the source documents in June 2026, and link every statistic to the report it came from so you can verify it yourself. Where a publisher issues annual updates, we cite the report edition and flag the year inline.
Frequently asked questions
What share of invoices contain errors?
Roughly a quarter of invoices trigger exceptions in typical AP operations (Ardent Partners) — from missing PO references to price and quantity mismatches.
What do invoice errors cost?
Exception invoices cost multiples of clean ones to process and are the main reason average per-invoice cost sits near $13 while automated best-in-class operations run closer to $3.
How do I reduce invoice errors?
Require PO numbers on every B2B invoice, use structured e-invoicing instead of PDFs, validate supplier master data, and automate three-way matching with sensible tolerances.
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