What Is Maverick Spending and How Do You Stop It?

Your category strategy for IT hardware is airtight: you've negotiated a 12% discount with a global supplier, mandated the contract through the procurement portal, and trained the team. Yet at the end of the quarter, you discover that 30% of IT purchases went to local resellers at list price. That's maverick spending—and it's costing you more than you think.

Maverick spending is any purchase made outside approved procurement channels, contracts, or policies. It's the silent budget killer that undermines sourcing strategies, inflates costs, and exposes companies to compliance and supply chain risks. This article will show you exactly how to identify, measure, and stop maverick spending using proven tactics and real-world examples.

What Exactly Is Maverick Spending?

Maverick spending refers to purchases that bypass established procurement processes. It happens when employees buy goods or services without using preferred suppliers, negotiated contracts, or purchase orders. While often well-intentioned—a manager needs a quick fix or believes they're saving time—it creates hidden costs and risks.

Common examples include:

A marketing team buying software directly with a corporate card instead of through IT procurement.
A plant manager ordering maintenance supplies from a local vendor rather than the contracted distributor.
An executive booking travel outside the corporate travel agency.
R&D purchasing lab equipment from a startup without a vendor risk assessment.

Maverick spending is not always malicious. But even small off-contract purchases add up: industry benchmarks suggest that 20–30% of indirect spend is maverick in typical large enterprises, and in some categories like IT and professional services, it can exceed 40%. The result is lost volume discounts, increased transaction costs (processing a PO can cost $50–$100), and exposure to unvetted suppliers.

Why Maverick Spending Happens (and Why It's Hard to Stop)

To combat maverick spending, you need to understand its root causes. It's rarely just about employees ignoring rules. Often, the procurement process itself is the problem: it's too slow, too complex, or doesn't offer the products people need.

Common drivers include:

Lack of user-friendly purchasing tools: If the approved portal requires 10 clicks and a week's wait, employees will find workarounds.
Insufficient supplier coverage: Preferred contracts may not cover niche or urgent needs, forcing buyers to go elsewhere.
Decentralized budgets: When departments control their own P&L, they may prioritize speed over compliance.
Weak enforcement: Without clear consequences or automated controls, policies are easily ignored.
Cultural factors: In some organizations, 'getting things done' is rewarded over following process.

A 2023 survey by ProcureCon found that 65% of procurement leaders cite 'ease of use' as the top reason for maverick spending. The fix isn't just stricter rules—it's making the right way the easy way.

The Real Cost of Maverick Spending

Maverick spending erodes value in several ways. The most obvious is price: off-contract purchases typically cost 10–20% more than negotiated rates. But the hidden costs are often larger.

Consider these impacts:

Lost volume leverage: Every dollar of maverick spend is a dollar not contributing to your negotiated volume tiers, potentially triggering rebate losses.
Increased transaction costs: Processing a one-off invoice can cost $50–$100 in AP effort, versus $10–$20 for a PO-based purchase.
Compliance and risk: Unvetted suppliers may not meet ESG, quality, or security standards, leading to fines or disruptions.
Data blindness: Maverick spend is often invisible in spend analytics, leading to poor forecasting and missed savings opportunities.

For a $1 billion revenue company with 20% maverick spend in indirect categories, the excess cost can easily exceed $5–$10 million annually. That's real money that could fund innovation or improve margins.

How to Measure Maverick Spending

You can't manage what you don't measure. Start by quantifying maverick spend across categories. The goal is to establish a baseline and track improvement.

A practical approach:

Extract 12 months of accounts payable (AP) data from your ERP (SAP, Oracle, etc.).
Match payments to preferred supplier lists and contract IDs.
Flag transactions without a PO or with suppliers not in the master vendor list.
Calculate maverick spend as a percentage of total spend, by category and department.
Validate with spot checks: interview buyers to understand why they went off-contract.

Tools like Sievo, SpendHQ, or even Excel can help. For a mid-sized company, a manual analysis might take 2–3 weeks; automated spend analytics platforms can do it in days. Expect to find that 80% of maverick spend comes from 20% of transactions—focus there first.

7 Proven Tactics to Stop Maverick Spending

Reducing maverick spending requires a mix of policy, process, and technology. Here are tactics that work.

1. Simplify the Buying Experience

Make approved purchasing as easy as possible. Implement a guided buying tool (e.g., Coupa, Ariba Guided Buying) with a consumer-like interface. Pre-populate catalogs with negotiated items and enable one-click checkout. Aim for a process that takes under 5 minutes for standard items.

2. Expand Preferred Supplier Coverage

If employees can't find what they need in the catalog, they'll go elsewhere. Regularly review and expand your preferred supplier list to cover edge cases. For tail spend, consider a managed procurement service (e.g., Amazon Business for business supplies) that offers competitive prices and easy purchasing.

3. Enforce Policy with Technology

Use your P2P system to block purchases from non-approved vendors. For example, configure your ERP to require a PO for any purchase above $500, and restrict corporate card use to approved categories. Automated controls reduce the need for policing.

4. Train and Communicate

Many employees don't understand the impact of maverick spending. Run awareness campaigns showing the cost savings from compliant purchasing. Share success stories: 'By using the preferred supplier, we saved $200k last quarter.' Make it a shared goal.

5. Align Incentives

Include procurement compliance in departmental KPIs. For example, tie a portion of bonuses to maverick spend reduction. Conversely, don't punish people for following process—reward them for finding savings through approved channels.

6. Conduct Regular Audits

Perform quarterly audits of AP data to identify maverick spend. Publicize results internally (by department, not individual) to create healthy competition. Use findings to refine your approach—if a department consistently goes off-contract, investigate why.

7. Leverage Data and Analytics

Deploy spend analytics to monitor compliance in real time. Set up alerts for purchases from non-preferred suppliers. Use predictive analytics to identify likely maverick categories before they become problems.

Implementing these tactics typically takes 3–6 months for initial results, with full cultural change taking 12–18 months. Expect to reduce maverick spend by 30–50% within the first year.

Common Mistakes That Undermine Your Efforts

Even well-designed programs fail if you fall into these traps:

Focusing only on policy: Rules without enablement create frustration. Pair strict policies with easy-to-use tools and support.
Ignoring the user experience: If your procurement portal is clunky, adoption will suffer. Invest in UX improvements—it's worth the cost.
Not addressing root causes: If a department goes maverick because their preferred supplier isn't on contract, fix that instead of punishing them.
Lack of executive support: Without visible backing from leadership, maverick spending will persist. Get a CFO or COO sponsor.
Overlooking tail spend: Small purchases add up. Use automated solutions for low-value buys rather than ignoring them.
Measuring the wrong things: Don't just track maverick spend percentage—also track cost savings from compliance and user satisfaction.

Next Steps: Your 30-60-90 Day Plan

Stopping maverick spending is a journey. Here's how to start:

Days 1–30: Assess current maverick spend using AP data. Identify top 3 categories and departments. Get executive sponsorship.
Days 31–60: Launch a pilot with a simplified buying tool for one category. Communicate policy changes and provide training.
Days 61–90: Measure results, expand to other categories, and refine controls. Celebrate wins and adjust incentives.

Remember: the goal isn't to eliminate all maverick spending overnight—it's to create a culture where compliant purchasing is the default. With the right mix of carrot and stick, you can turn maverick spend into managed spend and unlock significant savings.