Spend Management: Gaining Control Over Where the Money Goes

The Spend Visibility Gap: Why Most CFOs Are Flying Blind

Most finance leaders know they have a spend problem. They are less certain about its scale. Research from Efficio, a leading independent procurement consultancy, puts hard numbers on the visibility gap:

1. 93% of CPOs and CFOs identify maverick spend as a major problem
2. 19% have full confidence they have an accurate picture of their spending
3. 85% report more than a quarter of indirect spend occurs without financial control

The implication is striking: the overwhelming majority of finance leaders know they have a maverick spend problem, yet fewer than one in five have confidence in the data they would need to measure, let alone address it. Spend management is not a strategic aspiration for most organizations. It is a gap they are actively living in.

“Better visibility and analytics was cited as the number one improvement area by CPOs in 2025 — reflecting that most organizations still cannot see their own spend clearly enough to act on it.” — Ardent Partners 2025 Spend Under Management Report

What Spend Management Actually Covers

Spend management is often conflated with spend analysis (the data exercise of categorizing and benchmarking expenditure). The two are related but distinct:

Spend management encompasses four operational layers:

• Spend visibility: knowing in real time what has been committed, approved, and paid across every cost center, supplier, and category.
• Spend control: enforcing purchase policies, approval thresholds, and budget limits before expenditure is committed, not after invoices arrive.
• Spend compliance: ensuring purchases flow through approved channels, from contracted suppliers, at negotiated rates, reducing maverick spend and leakage.
• Spend analytics: turning spend data into actionable insight for sourcing decisions, supplier negotiations, and budget forecasting.

Maverick Spend: The Costliest Visibility Failure

Maverick spend – purchases made outside approved channels, bypassing contracted suppliers or established procurement processes – is the most visible symptom of a spend management failure. It is also one of the most expensive.

According to Ardent Partners’ 2025 Spend Under Management Report, organizations face costs that are 12 to 18% higher when purchases bypass established contracts. For an organization spending $20M annually on indirect goods and services, even a modest 20% maverick spend rate represents $480,000 to $720,000 in excess cost per year, before accounting for the administrative burden of chasing down unapproved invoices.

Where Maverick Spend Originates

Efficio research identifies the most vulnerable categories:

• IT and software: cited by 81% of finance leaders as the most prone to leakage. SaaS subscriptions purchased on corporate cards, software tools procured by individual teams without IT or finance approval, and auto-renewing contracts that bypass the procurement cycle entirely.
• Professional services: identified by 68% as a high-leakage category. Consulting, legal, and staffing engagements often originate with business unit leaders who engage suppliers before a PO or contract exists.
• Facilities and office supplies: high-frequency, low-unit-value purchases that individually fall below approval thresholds but accumulate significantly across cost centers.

Why Maverick Spend Persists

The operational root causes are almost always process failures, not policy failures:

• Purchase requisition processes are too slow or too burdensome, so employees go around them
• Approved supplier lists are not visible to business unit buyers at the point of purchase
• Approval thresholds are set too high, allowing significant individual purchases without finance review
• There is no real-time budget visibility, so department heads do not know they are overspending until month-end close
• AP receives invoices for purchases already made and pays them to avoid supplier relationship damage, reinforcing the behavior

Spend Under Management: The Benchmark That Matters

Spend under management (SUM) is the percentage of total organizational spend that flows through formal procurement processes – contracted suppliers, approved channels, and documented approval workflows. Ardent Partners tracks this metric across more than 400 procurement organizations annually. Their 2025 data shows a meaningful performance gap between leaders and the rest:

Source: Ardent Partners 2025 Spend Under Management Report.

The cross-industry average is 70.8%, meaning the typical organization already has nearly 30% of its spending outside formal controls. For regulated industries, BFSI, or publicly traded companies facing audit scrutiny, that uncontrolled portion represents both financial and compliance risk.

“Digital World Class procurement teams achieve 2.6x greater ROI and lose 60% less savings to maverick buying and contract noncompliance compared to typical peers.” – The Hackett Group, Digital World Class Procurement Benchmarking

The Four Levers of Effective Spend Control

1. Approval Workflow Enforcement Before Commitment

The most effective spend control happens before an invoice arrives, at the purchase request stage. A structured invoice approval workflow that routes purchase requests through the right approvers based on spend category, cost center, and dollar threshold prevents maverick spend at the source rather than chasing it after the fact. When approval is fast (automated routing, mobile-accessible sign-off), employees have less incentive to bypass it. When it is slow, the workaround becomes the path of least resistance.

2. Budget Visibility at the Point of Request

A purchase request made without real-time budget visibility is a commitment made blind. When requestors and approvers can see committed spend, available budget, and year-to-date actuals at the category and cost center level, before approving, they make fundamentally different decisions. This requires spend data to be current (not month-end) and accessible to the people who approve spend, not just the finance team.

3. Vendor Data Integrity as a Spend Control Foundation

Spend management breaks down when the vendor data underneath it is fragmented or inaccurate. Duplicate suppliers, outdated bank details, and suppliers not linked to contracts make it impossible to tell whether a given invoice represents contracted or maverick spend. A structured vendor management process, with a clean, validated supplier master as its foundation, is the prerequisite for meaningful spend control. You cannot measure spend against contracts that are not linked to the right supplier records.

4. AP as the Last Line of Spend Control

AP is the final checkpoint in the spend management cycle. By the time an invoice reaches AP, the purchase is typically already made – but AP controls whether it is paid, when, and to which account. Automated invoice matching (three-way match: PO, receipt, invoice) flags spend that bypasses procurement before payment is released. AP automation and cash / liquidity management connect the downstream payment function to the upstream spend control framework, making AP a control point rather than a processing queue.

Building Spend Visibility: What Finance Teams Actually Need

Spend visibility is not a reporting problem. It is a data integration problem. Most organizations have spend data; it lives in ERP systems, purchasing cards, expense tools, and supplier invoices. The issue is that it lives in different systems with different structures, reconciled at month-end rather than available in real time.

The elements of practical spend visibility:

For AP-specific performance metrics that align with a spend visibility framework, see Serina’s guide to accounts payable KPIs.

Spend Management Maturity: Where Is Your Organization?

Finance teams and procurement functions typically progress through recognizable stages of spend management maturity:

• Stage 1 – Reactive: No formal spend visibility. AP processes invoices as they arrive. Budget variances discovered at month-end. Maverick spend undetected until audit.
• Stage 2 – Structured: Purchase orders required for major purchases. Approval thresholds defined. Spend categorized monthly. Compliance enforced inconsistently across cost centers.
• Stage 3 – Controlled: Real-time budget visibility by cost center. Automated approval routing. Vendor master validated. AP exceptions flagged before payment. SUM above 70%.
• Stage 4 – Optimized: Spend data connected to sourcing decisions. Contract compliance tracked per supplier. Predictive spend analytics. Best-in-class SUM above 90%. Continuous improvement on savings rate.

The Ardent Partners data suggests the average organization sits at Stage 2 to Stage 3. Best-in-class organizations have reached Stage 4 – and the financial performance difference is measurable: 2.6x greater ROI, 60% less value lost to maverick buying, and 8% savings rates versus 6.4% for typical peers, according to Hackett Group Digital World Class benchmarking.

Where AP Automation Fits in the Spend Management Stack

AP automation is not a spend management system in itself, but it is the operational layer that makes spend management work at the transaction level. The connection runs through four mechanisms:

• Invoice capture and classification: automated capture of every invoice into a structured, searchable record provides the raw spend data that management reporting requires.
• Three-way matching: linking every invoice to its purchase order and goods receipt makes contracted vs off-contract spend visible at the transaction level.
• Approval workflow enforcement: routing invoices through the right approval chain based on amount, category, and cost center enforces spend policy without requiring manual oversight of every transaction.
• Exception flagging: surfacing invoices with no PO, mismatched amounts, or unrecognized vendors gives finance a prioritized exception queue rather than a backlog of unreviewed transactions.

Together, these functions convert AP from a payment processing queue into a spend control checkpoint, one that operates on every invoice, in real time, without adding headcount.

Ready to Close Your Spend Visibility Gap?

Serina’s AP automation platform connects invoice processing, approval workflows, and vendor data into a spend control framework that gives CFOs real-time visibility into where money is going, before it leaves the business.  

Book a Serina demo to see how AP automation becomes the operational foundation for spend management.

Frequently Asked Questions

What is spend management?

Spend management is the discipline of gaining visibility into, controlling, and optimizing all organizational expenditure from purchase request through payment. It includes spend policy enforcement, budget alignment, supplier payment controls, and approval workflow management. Effective spend management requires three things: data visibility (knowing where money goes), process control (enforcing how purchases are approved), and system integration (connecting procurement, AP, and finance in a single view).

What is the difference between spend management and spend analysis?

Spend management is about control- enforcing policies, preventing maverick spend, and ensuring purchases flow through approved channels before they are committed. Spend analysis is about insight – categorizing historical spend data to identify savings opportunities, rationalize the supplier base, and benchmark category performance. Both are necessary: spend management prevents value leakage in real time; spend analysis identifies where to direct sourcing efforts for future savings.

What is maverick spend and why does it matter?

Maverick spend is purchasing that occurs outside approved channels: bypassing contracted suppliers, established procurement processes, or required approval steps. It matters because it is expensive: Ardent Partners data shows that off-contract purchases cost organizations 12-18% more than contracted alternatives. It is also widespread: Efficio research found that 93% of CPOs and CFOs identify maverick spend as a major problem, and 85% report that more than a quarter of their indirect spend occurs without financial control.

What is spend under management (SUM) and what is a good benchmark?

Spend under management (SUM) is the percentage of total organizational spend that flows through formal procurement processes like contracted suppliers, approved channels, and documented workflows. According to Ardent Partners’ 2025 research across 400+ procurement organizations, the cross-industry average SUM is 70.8%, while best-in-class organizations achieve 91.7%. Organizations with higher SUM also show significantly better contract compliance (79.5% vs 56.2%) and savings rates (8.0% vs 6.4%).

How does AP automation improve spend management?

AP automation improves spend management by enforcing spend controls at the transaction level. It captures every invoice into a structured record, matches invoices to purchase orders and contracts (three-way matching), routes invoices through approval workflows based on amount and category, and flags exceptions like invoices with no PO, mismatched amounts, or unrecognized vendors, before payment is released. This converts AP from a payment processing function into a spend control checkpoint that operates on every transaction without adding manual oversight.