In accounts payable (AP), automation is no longer a novelty — it’s the norm. Many finance teams have adopted invoice capture tools, approval workflows, and electronic payment systems to accelerate processing. But there’s a new performance marker that’s redefining what efficiency means in AP. It’s not just about processing faster; it’s about eliminating manual intervention altogether.
This is where touchless invoice processing, also known as straight-through processing (STP), comes in. It refers to the complete, end-to-end processing of an invoice — from receipt to payment — without any human touch. No typing amounts, no chasing down approvals, no fixing mismatches. The system does it all. For high-volume AP teams, this is more than a process improvement; it’s a competitive differentiator.
Why Touchless Processing is the KPI to Watch
Research from Ardent Partners’ AP Metrics that Matter 2025 reveals that only about one in three invoices today is processed touchless. Yet the top 20% of AP teams — often referred to as Best-in-Class — achieve rates that are twice as high. The impact is significant: these teams process invoices for as little as $2.78 each, compared to $12.88 for the rest of the market, and clear them in just over three days instead of more than seventeen.
These numbers highlight why touchless processing is becoming a KPI worth tracking. It’s not a vanity metric; it directly influences cost efficiency, cycle time, and scalability. In an environment where invoice volumes are growing and budgets are tight, the ability to process more with the same headcount is a powerful advantage.
The Exception Challenge
The biggest obstacle to higher touchless rates is exceptions. In 2025, AP leaders ranked invoice exceptions as their most pressing challenge — even above late payments and compliance concerns. The average exception rate sits at around 14%, while Best-in-Class teams have reduced it to roughly 9%.
Exceptions can occur for a variety of reasons: missing or incorrect purchase orders, price or quantity mismatches, incomplete vendor records, wrong general ledger codes, or duplicate invoices. Each exception disrupts the straight-through flow and requires manual handling, adding time, cost, and risk. Reducing these errors is essential to improving touchless performance.
Setting Realistic Touchless Targets
While marketing materials from some vendors promise touchless rates of 95% or more, the reality is more nuanced. Achievable targets depend on the type of invoices an organization processes, its level of supplier compliance, and the maturity of its internal processes.
For purchase order-heavy industries such as manufacturing or retail, a touchless rate of 60–70% within 18–24 months is realistic. Businesses with a mix of PO and non-PO invoices can aim for slightly lower, while those in non-PO-heavy sectors such as services or healthcare may target even lower. These figures reflect the fact that PO-based invoices, with their structured data and matching rules, are inherently easier to automate.
The Path to Higher Touchless Rates
Reaching these targets is not about layering on more technology alone. It’s about eliminating friction throughout the invoice lifecycle. This begins with ensuring that suppliers submit invoices in clean, structured formats through e-invoicing portals, networks, or EDI. Expanding PO coverage and tightening matching tolerances help prevent invoices from being held up unnecessarily.
Equally important is the quality of vendor master data. Clean records and mandatory data fields reduce the risk of mismatches and missing information. Duplicate detection at the point of capture can prevent errors from entering the system at all. For the exceptions that remain, emerging AI tools can assist with coding suggestions, anomaly detection, and the automatic approval of low-value invoices.
When approvals are designed with speed in mind, routed based on value and risk, and backed by clear SLAs — touchless rates rise steadily. The result is a compounding benefit: fewer late-payment penalties, stronger supplier relationships, and more time for AP teams to focus on strategic priorities.
Touchless as a Step Toward Autonomous Finance
Touchless invoice processing is not an endpoint; it’s a milestone on the journey toward autonomous finance. In this model, systems handle most of the transactions, and human involvement is reserved for strategic decision-making or complex exceptions.
The organizations making the most progress are not chasing unrealistic all-invoice automation goals. Instead, they set data-backed targets, track progress regularly, and view every exception as a solvable process flaw rather than an inevitable cost of doing business. As volumes continue to rise, the ability to move invoices from inbox to payment without a single manual touch will separate AP teams that simply keep up from those that lead the way.
The Bottom Line
Touchless invoice processing is no longer a nice-to-have, it’s becoming the defining metric for AP excellence. By reducing exceptions, improving data quality, and streamlining approvals, finance teams can unlock the full potential of automation and prepare for the shift to autonomous finance.
Sources:
- Ardent Partners, AP Metrics that Matter 2025
- Ardent Partners, Accounts Payable Challenges 2025
- Gartner, Autonomous Finance Predictions
