Why Maverick Spend is Costing More Than You Think

And why your rogue buyers might be costing you your sanity too.

Let’s be honest. Every procurement team, no matter how polished their process documentation or how enthusiastic their sourcing strategy presentations, has a few “mavericks.”

You know who I mean — the lovable rebels who bypass the approved supplier list because they “just needed it quickly,” or the managers who swear they got a “great deal” by buying something with a corporate card and a wink.

At a glance, these little acts of procurement piracy can look harmless. After all, someone’s just getting paper for their printer, or ordering a “temporary” piece of equipment that stays around longer than most contracts.

But underneath that small transaction lies a big, costly problem known as maverick spend — and trust me, it’s draining more than just your budget.

What Exactly Is Maverick Spend?

In simple terms, maverick spend (sometimes called rogue spending or uncontrolled spend) is when someone makes a purchase outside the organization’s agreed procurement channels or approved supplier base.

It’s usually well-intentioned — people think they’re saving time or securing better prices — but it undermines visibility, control, and negotiation power.

The True Cost of Those “Little Exceptions”

Here’s the rub: maverick spend doesn’t just cost money in obvious ways (like missing out on volume discounts). Its real damage lies in the invisible costs — and those can be much bigger than anyone expects.

Let’s unpack where those extra dollars, hours, and headaches really go:

1. Lost Negotiation Power

When 30 people each buy something separately from the same supplier, guess what happens? You lose the leverage that would’ve come from consolidating those purchases into one big contract.

Suppliers love maverick buyers because they get away with charging full retail prices while procurement loses visibility and influence.

2. Duplicated Effort

Procurement teams spend months building supplier relationships, negotiating terms, and setting up efficient ordering systems. Every time someone buys off-platform, they bypass that entire infrastructure.

Then Accounts Payable has to process a one-off invoice, check tax details, and figure out if the goods match company policies — all for a $300 purchase that should have taken seconds via an approved supplier.

A single maverick purchase can trigger a flurry of admin tasks that consume hours. Multiply that by dozens of rogue buyers, and suddenly you’ve lost several workweeks you could’ve spent on strategic sourcing.

3. Compliance Risks and Audit Nightmares

Today’s procurement isn’t just about buying — it’s about governance. Every unapproved transaction is a potential compliance landmine. Did that supplier meet sustainability requirements? Was proper due diligence done? Is data security ensured when using that new SaaS tool someone just bought with the company card?

Procurement may not always wear a legal hat, but maverick spend invites the kind of questions that keep risk managers awake at night. If auditors show up tomorrow, do you know where all your spend is? If your answer is “mostly,” you already know the problem.

4. Budget Blowouts

Budget owners love to say, “It’s just a small purchase.” Unfortunately, a thousand “small purchases” add up faster than anyone expects.

Maverick spend often hides in grey areas — marketing teams ordering print runs without POs, IT buying plug-ins nobody monitors, regional offices setting up random supplier accounts because “HQ takes too long.”

When finance finally consolidates the year-end spend, everyone’s shocked to find entire categories have ballooned. Cue the blame game, the emergency cost-cutting measures, and the inevitable meeting titled “Lessons Learned.”

5. Supplier Relationship Erosion

Your approved suppliers notice when they get sidelined. Consistent spend builds trust and prioritisation; inconsistent spend breeds frustration. Suppliers stop offering you their best pricing or service levels because your commitment seems casual. Why should they hold stock for you when your people keep buying elsewhere?

And ironically, once procurement needs their help urgently, maverick behaviour from the past can come back to haunt you — often with a polite but firm “Sorry, you’re no longer a priority account.”

How Did We Get Here?

Before we paint maverick spenders as the villains of corporate efficiency, let’s admit something: sometimes, the system is partly to blame.

Most people don’t go rogue for the fun of it. They do it because:

The procurement process feels too slow. “I can’t wait three weeks for approvals.”

They don’t know there’s a preferred supplier. “I just Googled it — looked fine!”

The platform isn’t user-friendly. “I tried to raise a PO, but the system crashed.”

They believe they’re saving the company money. “Look, I found it $20 cheaper!”

Nobody enforced the rules. “Everyone else does it this way.”

When processes are seen as bottlenecks rather than enablers, people will find workarounds. And once workarounds become normalised, maverick spend becomes embedded in the organisation’s DNA.

It takes more than a memo to undo that.

The Psychology of a Maverick Spender

A small confession: maverick spending can be strangely seductive. It’s the corporate equivalent of sneaking dessert before dinner — it feels satisfying in the moment, with consequences that seem abstract and far away.

Most maverick spenders fit into a few predictable archetypes:

The Hero Buyer. “I saved the project by ordering it myself.” They mean well, but often miss that a single heroic act can wreck a year’s procurement plan.

The Impatient Innovator. “Procurement doesn’t understand what marketing needs right now!” They’re allergic to bureaucracy, even the necessary kind.

The Budget Houdini. “I’ll charge it to a different cost centre so it doesn’t get noticed.”

The Accidental Rebel. “Oh, that form was required? Nobody told me.”

These personas aren’t malicious — they’re human. But managing them requires more than rule enforcement; it requires culture change and a touch of empathy.

The Ripple Effects You Don’t See

Even if maverick spend seems small, it destabilises several foundational elements of a company:

Data quality: Untracked or misclassified purchases distort analytics. Your category spend reports become unreliable, and your savings opportunities evaporate in the fog.

Forecasting: Without accurate spend visibility, budgeting turns into educated guesswork.

Sustainability goals: Unsanctioned suppliers often skip environmental or ethical checks. One off-book order can undermine months of progress toward ESG targets.

Employee fairness: If some teams can ignore processes, others soon will, making compliance feel optional.

The irony? Every company invests heavily in systems to bring visibility, automation, and discipline.

Yet a few rogue transactions can quietly sabotage millions in potential savings.

Humour Break: “A Day in the Life of Maverick Mike”

To lighten the mood, let’s follow a fictional (but suspiciously familiar) character: Maverick Mike.

8:45 AM: Mike realises he needs a specialist part for a client project by tomorrow. Procurement’s lead time is five days. “No time for that — I’ll just buy it myself.”

9:02 AM: He finds a supplier online offering “express delivery” and adds the item to his cart. “Hey, great price!” (Spoiler: it’s not great.)

9:05 AM: Corporate card declines because it’s technically not approved for that category. Mike pays on his personal card — he’ll “sort it later.”

Next week: The part doesn’t fit; the supplier refuses to take it back. Accounts Payable rejects the expense claim. Mike emails procurement in frustration.

Procurement’s reaction: sigh

Multiply Mike by a few dozen employees, and you start to see the administrative avalanche forming.

So, How Do We Rein in the Mavericks?

Reducing maverick spend isn’t about punishment — it’s about empowerment. Procurement has to make compliance feel easy, even attractive. Here’s how to do it:

1. Simplify Your Processes

If your purchase order flow could be mistaken for a tax return, people will find shortcuts. Modernise your procurement tools with user-friendly interfaces and faster approvals. Integrate mobile access if possible — friction breeds rebellion.

2. Communicate the “Why,” Not Just the “What”

People comply better when they understand why it matters. Use real examples of wasted money or compliance issues caused by off-contract spending. Frame procurement not as “the department of no” but as “the department of smarter yes.”

3. Highlight the Personal Wins

Turn compliance into a convenience. Show teams how approved suppliers save them time, ensure quality, and spare them from invoice disputes. Nobody likes chasing refunds or explaining unapproved purchases to their manager.

4. Make Data Your Friend

Visibility is your greatest weapon. Track rogue spending trends and share dashboards with leadership. Nothing motivates change like a bar chart showing how much money is quietly leaking each quarter.

5. Reward Good Behaviour

Publicly acknowledge departments that maintain strong compliance. Procurement doesn’t usually give out awards, but maybe it should — everyone loves recognition, and peer pressure can work wonders.

6. Collaborate, Don’t Dictate

Work with departments to understand their real pain points. Maybe the preferred supplier can’t deliver as quickly as needed—that’s valuable feedback for renegotiations. When you involve end users, they become allies, not outlaws.

Technology to the Rescue (If You Use It Right)

There’s good news: today’s procurement tech is smarter than ever. Tools powered by AI and predictive analytics can flag unauthorised purchases in real time, suggest preferred alternatives, and even identify at-risk categories before spend goes rogue.

Some best-in-class features worth exploring include:

Automated purchase routing that prompts users toward approved suppliers.

Spend analytics dashboards that visualise total leakage and track improvement.

Contract management integration that ensures you’re always buying under the right terms.

Procurement chatbots that assist employees with “Where can I buy X?” questions before they wander off to Google or an AI tool.

But remember, technology alone can’t fix culture. It’s like giving a toddler a GPS — the tool works, but someone still needs to guide them down the right road.

Turning the Tide: From Rogue to Responsible Buying

Eliminating maverick spend entirely is unrealistic; humans will always find creative ways around rules. But reducing it substantially? That’s achievable — and impactful.

Start small: pick one high-risk category (like IT or marketing services) and analyse out-of-contract spend. Engage stakeholders, understand their frustrations, and pilot a streamlined process. Once they see procurement as a problem-solver, not a gatekeeper, compliance begins to stick.

Then, build momentum by sharing success stories:

“Thanks to improved compliance in our marketing category, we saved $250K in six months.”

That’s the kind of story leadership remembers — and the kind that makes maverick buyers think twice.

The Punchline: It’s Not About Policing, It’s About Partnership

At its heart, the battle against maverick spend isn’t about forcing rule-following; it’s about changing the perception of procurement. We’re not here to slow people down — we’re here to make smarter, more sustainable buying decisions for the long term.

The truth is, procurement pros secretly love a good challenge. We balance diplomacy, data, and detective work daily. But even Sherlock Holmes would lose patience chasing phantom purchases from 17 rogue departments. So maybe it’s time for a new motto: “In purchase we trust — but verify through Procure-to-Pay.”

Final Thought

Maverick spend may be intentional, but it’s rarely driven by bad intent. Most of the time, it’s a signal that the purchasing process is too slow, too complex, or poorly understood.

The solution is not tighter policing. It is better procurement design. When the right supplier, the right price, and the right process are easy to access, most people will happily follow the rules.