When invoices are being approved, and vendor relationships seem stable, it's easy to assume the contract is being followed. Often, it isn't.
Invoices are being approved, spending is in line with expectations, and your vendor relationship appears to be going well. Everything appears fine on the surface.
However, somewhere in the gap between what the contract says and what your organization is actively checking through contract compliance, money may be quietly walking out the door. This contract value leakage is more common than most CFOs and procurement leaders realize, and industry estimates suggest that organizations lose up to 6% of contract value. For a portfolio of complex vendor, supplier and licensee agreements, this can represent millions of dollars.
Leakage rarely comes from a single dramatic error but often accumulates through missed credits, human error, invalid performance metrics and the reality that many organizations just don’t actively review contracts. The terms you negotiated only matter if someone consistently checks that they are being followed.
Procurement teams often spend considerable time and effort negotiating favorable pricing, performance guarantees, rebate structures and volume discounts. However, once managers and invoice reviewers take over day-to-day execution, there is usually no formal process or single accountable team ensuring vendors stick to the negotiated terms.
Over time, value can drift from contracts. Pricing databases may not be properly updated during a system change. A threshold that should have triggered a rebate may go unnoticed, while a performance penalty that should have resulted in a reduced invoice goes unclaimed. Leakage usually isn’t caused by a single event or issue but by a gap between what the contract says and what is being delivered. Without consistent validation, contract conditions only exist on paper.
While value leakage happens behind the scenes, several risk factors signal potential for loss. If a couple of these apply to your own vendor agreements, it may be worth taking a closer look.
Not all contracts carry the same level of risk. A simple, single-price item or a monthly subscription with a fixed fee may be easy to validate. However, contracts involving large volumes of purchases, multiple labor categories, variable rates or activity-based fees are a different story.
The more moving parts there are in an agreement, the harder it is to confirm every line item on every invoice reflects what was negotiated in the contract. Because complexity creates more room for errors, you should scrutinize any vendor relationship with high transaction volumes or multi-layered pricing structures more carefully.
The more you spend with a vendor, the more costly billing and performance issues can become. A 1% discrepancy on a $50,000 contract may not seem significant, but that same 1% on a $10 million contract equals a $100,000 loss.
Many organizations give large vendor relationships the same level of oversight as smaller ones, even though the financial risk is much higher. Any vendor relationship with a significant share of annual spend should be reviewed regularly.
Contracts often tie payment to operational performance. Delivery timeliness, service quality and uptime guarantees can all affect pricing through incentives, penalties and service-level credits.
Vendors often report on their own performance. If the reporting becomes irregular or the numbers trend in the wrong direction without an invoice adjustment, you should investigate further. While things like subpar performance and missing a service-level expectation threshold will show up in operational data, they won’t always show up on an invoice, and you could be paying full price for a level of service you no longer receive.
Even a great vendor relationship can quickly change when something shifts on their end. A leadership transition, acquisition or major system overhaul can disrupt the people, processes and knowledge that kept things running smoothly.
Staff members who knew your pricing structure, exclusions or reporting requirements may have left. Their replacements may be working from incomplete information or assumptions that don’t align with the agreement. If your vendor has recently undergone a notable organizational change and no one has reviewed whether the terms are still being applied correctly, it’s worth a formal contract review.
Sometimes, compliance risk can start internally. ERP migrations, billing system upgrades and accounts payable overhauls can trigger undetected billing errors. A system designed to flag rate discrepancies or catch missing credits may not have sufficient controls in the new environment.
Staff turnover can also create problems. A team member who understands the nuances of a particular vendor agreement may leave, leaving gaps if that knowledge isn’t passed on.
Some commercial contracts have a most favored customer clause that entitles you to the best pricing. It’s a valuable negotiating win and ensures you don’t overpay for services.
But it can often be impossible to verify this clause on your own. A vendor isn’t going to inform you that a competitor is receiving a better rate, nor are they going to share other customers’ contract terms. In most cases, the only information you have access to is what they provide, which isn’t enough to confirm your best-rate pricing.
Sole-source and single-source suppliers can create additional risk. Even without bad intent, a supplier who knows you have limited alternatives may be less likely to consistently apply pricing adjustments or service credits you are owed.
The more critical a supplier is to your operations, the more important it is to regularly review invoices, pricing and contract terms.
Some vendors aren’t always transparent in their billing and that doesn’t necessarily mean they are acting in bad faith. They may explain how charges were calculated without being able to provide the data behind them.
This risk is common in cost-plus, royalty and performance-based agreements, where pricing depends heavily on what the vendor reports. In these situations, your ability to confirm what you are being charged is limited by the information the vendor chooses to share.
One or more of these signs may indicate it’s time to audit a vendor relationship. Most master service agreements and commercial contracts include audit rights as a standard feature. Exercising these rights is not an adversarial act and vendors that work with large enterprise clients expect to be audited periodically through a transparent, structured contract compliance process.
While contract compliance audits focus on past activity, going through the process will leave you with clearer contract language, stronger enforcement mechanisms and protections that reduce future risk.
These reviews often deliver a strong return on investment. Recovered funds and future savings can easily outweigh the cost of the review, especially in large, complex vendor relationships where contract leakage is most likely to occur.
It’s one thing to sign a deal — it’s another to make sure every rebate and credit actually hits your bottom line. If you haven't been regularly reviewing your vendor pricing, rebates or performance credits, little discrepancies might be adding up. Learn how our contract compliance audit services team can make sure your contracts are performing exactly as planned.
Reach out to our Contract Compliance experts today for a comprehensive assessment of your third-party relationships.
