Switching costs are the real reason buyers stay with a supplier they complain about, long after deciding the product itself is nothing special.

You have complained about them for two years. The slow replies, the delivery that slipped, the quote that took a week to arrive. And yet, when it came time to actually replace them, you did not. Almost nobody does.

There is a supplier that nearly every company keeps in spite of itself. The one they grumble about in meetings, threaten to replace at renewal, and then quietly renew anyway. If specification and price were all that mattered, this would never happen. It happens constantly, and the reason is switching costs.

The scale of this inertia is easy to underestimate. Across qualified B2B pipelines, research published in Harvard Business Review by Matthew Dixon and Ted McKenna found that somewhere between 40% and 60% of deals end in no decision at all: not a loss to a competitor, but a buyer choosing to keep doing what they were already doing. No decision now outweighs losses to any single rival by two to three times. When a supplier tries to win a new account, its biggest competitor is not the incumbent. It is the buyer’s own reluctance to move.

We have written before about why buyers eventually do change suppliers. This is the other half of that story: why, most of the time, they do not. And the uncomfortable truth about switching costs is that they have very little to do with your product and almost everything to do with what change costs the buyer. A supplier can be clearly better on paper and still lose, because “better on paper” is not the question the buyer is actually asking. The question is whether the upside is worth what it will cost them, in money, effort, risk and reputation, to move.

There are five switching costs a buyer weighs, usually without saying any of them out loud. Only one of them is financial.

The five switching costs buyers actually weigh

The Financial Switching Cost: the one buyers admit to

The financial cost is the only one that appears on a spreadsheet, which is exactly why it gets named while the others stay silent. Requalifying a new supplier, running trials, testing samples, adjusting a line to a slightly different spec, holding two suppliers in parallel during a transition: all of it costs money and time. It is real. In most cases it is also the smallest of the five. Often it is just the socially acceptable reason a buyer gives for a decision they really made on other grounds. When a buyer tells you “it is too expensive to switch,” they are usually describing the one cost they are comfortable admitting to.

The data: Buyer Truths 2026 research found that implementation effort beats cost by roughly three to one as the reason buyers stay with their current supplier. It is rarely the invoice that keeps them. It is everything the invoice does not show.

The Effort Cost: switching is a project nobody is paid to run

Changing a supplier is not a decision. It is a project. Someone has to source alternatives, request and compare quotes, run samples, audit the new plant, requalify the product, update systems and paperwork, and shepherd the whole thing through internal approvals and past every stakeholder in the buying committee. That work almost always lands on one person, and here is the trap: it is usually the same person who would benefit most from the switch. You are asking them to take on weeks of thankless work to fix a problem they have already learned to live with. Learning to live with it is easier, and easier wins more often than better.

“Nobody’s job is to switch suppliers. That is exactly why so few buyers do.”

The Risk Cost: the devil they know

The current supplier is a known quantity. However flawed, the buyer can predict them. A new supplier is a promise, and promises carry risk. This is where a well documented quirk of human decision making takes over: people feel the pain of a loss far more sharply than the pleasure of an equal gain. In a buying decision that means the risk of a switch going wrong looms much larger than the reward of a switch going right, even when the odds favour the switch. A cautious buyer is not being irrational. They are weighting downside more heavily than upside, exactly as most people do. A supplier who wants to win them has to shrink that downside, not simply talk up the upside.

The data: Analysis of no decision losses suggests only around 44% come from a genuine preference for the status quo. The larger share, roughly 56%, comes from what researchers call the fear of messing up: buyers who want to change but are too afraid of getting it wrong to commit.

The Career Cost: nobody gets fired for staying

This is the cost suppliers understand least, because it is invisible and personal. The person deciding is not spending their own money, but they are spending their own credibility. Keep the current supplier and something goes wrong, and it is the supplier’s fault: these things happen. Champion a new supplier and something goes wrong, and it is your fault: you pushed for this. The reward for a successful switch is modest and shared. The punishment for a failed one is sharp and personal. Faced with that asymmetry, the safe career move is almost always to stay, complain, and blame the incumbent when things slip. You do not beat this by being better. You beat it by making your champion look smart and safe for choosing you, and by giving them the cover to defend the decision if anyone ever questions it

“The reward for a good switch is shared. The blame for a bad one is personal.”

The Relationship Cost: leaving means starting cold

Underneath the process sits something human. The buyer knows their current contact. They know who to call, who owes them a favour, whose word is good, and how the other side behaves when there is a problem. All of that is hard won and invisible, and switching throws it away to start again with strangers. Even a difficult relationship is a known one, and known beats unknown when the stakes are real. This is also why the incumbent so often gets the benefit of the doubt: years of history are a form of trust that a better quote simply cannot buy on day one.

The data: When Forrester asked buyers why they had delayed or abandoned a purchase, the most common answer was not price or product. It was that nothing forced them to decide. Inertia does not need a reason. It only needs the absence of one.

Switching costs, not the incumbent, are your real competitor

Put the five together and the picture is clear. When a buyer keeps a supplier they complain about, it is almost never a verdict that the supplier is good. It is a verdict that leaving is expensive, in money, effort, risk, reputation and history, and that the visible upside of switching has not yet cleared that bar.

That changes what winning a new account actually requires. Your real competitor is not the other supplier’s product. It is the buyer’s switching costs and their fear of getting change wrong. Being better on paper does not move them, because they have been shown better on paper before and stayed anyway. What moves them is making the switch feel small, safe and easy. Prove your reliability instead of asserting it. Carry the effort of the transition yourself. Offer a staged or trial based switch that limits the downside. Give your champion a story that makes them look smart rather than reckless.Lower the switching costs and the better supplier can finally win. Leave them high and the better supplier keeps losing to inertia.

And if you are the incumbent, the lesson flips. Your switching costs are your moat, but the good version of that moat is not trapping people. It is being so reliable, so easy to plan around, and so genuinely trusted that leaving would feel like a loss rather than a relief. Earn the switching costs. Do not simply rely on them.

Buyers do not stay because you are good. They stay because leaving is expensive in ways that never appear on your quote.

Frequently asked questions

Why do buyers stay with a supplier they complain about?

Because complaining is cheaper than changing. The effort, risk, career exposure and lost relationship of moving to someone new usually outweigh the visible benefit of doing so. Staying is the safe default, and buyers reach for it even when a clearly better option is available.

Are switching costs really just about price?

Not as often as buyers assume, and not for the reason they think. Research suggests implementation effort, not price, is the main thing keeping buyers put, by roughly three to one. A lower price does not make a switch feel safer. Reducing the effort and risk of changing does.

What are switching costs in B2B?

The full price of changing suppliers, most of which is not financial. Switching costs include the money of requalification and testing, the operational effort of sourcing and onboarding, and the psychological weight of risk, career exposure and lost relationships. The invisible costs usually matter more than the visible ones.

How do you win a customer away from an established supplier?

By lowering their switching costs, not by being marginally better. Make the change feel small and safe: prove your reliability with evidence and references, carry the work of the transition yourself, offer a trial or staged switch that limits the downside, and give your internal champion a story that makes choosing you look smart rather than risky.

How do switching costs keep your own customers loyal?

Raise your switching costs the honest way. Be so reliable, so easy to plan around, and so genuinely trusted that leaving would feel like a loss rather than a relief. Relationship, consistency and low risk are far stronger locks than any contract, and unlike a low price, they cannot be matched with a single better quote.

The question worth arguing about

If you buy: think of the supplier you keep complaining about but never replace. Be honest about what is actually stopping you. Is it really about them, or about the cost of change to you?

And if you sell: the next time you lose to “we will stick with our current supplier,” ask whether you lost to that supplier at all, or to a set of switching costs you never tried to lower.

Drop your take in the comments. The supplier you complain about and the supplier you actually replace are rarely the same one.

Written by UWON Packaging, an FIBC and bulk bag manufacturer and exporter that would rather make switching feel safe than pretend it is free. About UWON · Our FIBC range · Talk to our team