- 1. What is actually wrong with most surcharges?
- 2. What is the difference between the three mechanisms?
- 3. Why does a surcharge without an index become a discount?
- 4. When does each of the three actually work?
- 5. What makes a customer accept an index clause?
- 6. How do you write one that holds?
- 7. When should you use none of them?
A surcharge is the most expensive way to recover a cost increase, and it is the method most businesses reach for first precisely because it feels like the cheapest. You avoid the price conversation, you recover the cost, and everyone moves on. That is the theory, and it holds for about two quarters.
What happens next is the subject of this article. If the broader question of which lever to reach for is still open, the profitability picture is where that gets settled.
1. What is actually wrong with most surcharges?
They have no defined trigger and no defined removal condition, which makes them discretionary. A discretionary charge is one your customers can ask you to waive, and once one of them succeeds, the charge has become a negotiating item rather than a cost recovery.
Watch the sequence. The surcharge goes out at four percent, applied to everyone. Your largest account calls, points out the size of its relationship, and receives a waiver. Two more accounts hear about it and receive the same. Within a quarter the surcharge is being collected only from the customers with the least leverage, which is precisely the population least able to absorb it and most likely to leave over it.
You have now recovered a fraction of the cost, from the wrong accounts, and spent the credibility you would have needed to run a real price increase.
Watch a related video: Contribution Margin vs P&L: The $4M Mistake.
2. What is the difference between the three mechanisms?
A surcharge is a separate line you add at your discretion. A pass-through is a contractual right to recover a specific cost. An index clause is an automatic adjustment tied to a published number. The difference is not the amount, it is who decides and when.
The surcharge requires a decision by you and an acceptance by them, every time. The pass-through requires a decision by you and no acceptance, because the right was agreed in advance. The index clause requires no decision by anybody, which is why it is the only one of the three that keeps working when nobody is paying attention.
That last property is worth far more than it sounds. Every mechanism that depends on somebody deciding to invoke it will eventually not be invoked, usually in the quarter when the relationship feels fragile.
3. Why does a surcharge without an index become a discount?
Because it is easier to remove than it was to add, and nothing in it specifies when it should come off. Input costs fall as well as rise. A surcharge with no removal condition is either withdrawn under pressure at the worst moment, or kept past its justification until a customer notices and you lose the argument entirely.
Run the arithmetic on a business doing $40 million in revenue that announces a four percent surcharge and waives it for the accounts representing half its volume. The realized recovery is two percent of revenue, or $800,000, collected entirely from the half of the book with no alternatives. A straight two percent price increase applied with segmentation would have produced the same money from a defensible basis, and left the surcharge available for an actual input shock later.
A four percent surcharge waived for half your book is a two percent price increase collected entirely from the customers least able to refuse it.
4. When does each of the three actually work?
Surcharges work for genuine shocks with a visible cause and an obvious end. Pass-throughs work when the cost is specific, verifiable and already contractual. Index clauses work anywhere the input has a published reference, which is more places than most manufacturers assume.
The surcharge is the right instrument for a freight spike, an energy event or a tariff change that everyone in the market is experiencing simultaneously. Its legitimacy comes from being visibly external and visibly temporary, and it should be announced with the condition under which it will be withdrawn.
The pass-through belongs in agreements where you already buy a named material to a named specification. The index clause belongs everywhere else, and particularly in multi-year agreements, because it is the only mechanism that survives the departure of the people who negotiated it.
There is a fourth option people forget, which is to do none of the three and simply move the base price. If the cost increase is permanent, a permanent price increase is the honest instrument, and dressing a permanent change as a temporary one buys you an easier conversation now at the cost of a harder one later, when you have to explain why the temporary charge is entering its third year.
5. What makes a customer accept an index clause?
Symmetry, mostly. An index that moves both ways is a fairness argument rather than a price argument, and buyers who will fight a surcharge for a quarter will sign a symmetric index in a meeting.
The reason is structural rather than emotional. Your buyer has to defend this internally. A clause that says price follows a published number in both directions can be defended as risk management, which is a category their organization already has a policy for. A surcharge cannot be defended as anything except having lost a negotiation.
Accept the downside genuinely. A clause you have written so that it only ever triggers upward will be recognized for what it is, and the second time it comes up you will have lost the fairness argument permanently.
An index that moves both ways is a risk management conversation. A surcharge is a negotiation your buyer has to explain losing. That difference closes deals.
6. How do you write one that holds?
Six elements, and a clause missing any of them will be argued over the first time it triggers. The argument is always about the element you left out, never about the concept.
- Name the published index. A specific, public, third-party reference that neither party controls. If no index exists for your input, you do not have an index clause, you have a formula.
- Set the baseline and the date. The index value at signing, written down. Most disputes are about what the starting point was.
- Define the threshold. The movement required before an adjustment happens, so neither side administers trivial changes. A band of a few percent is typical.
- Define the frequency and the lag. Quarterly review with a stated notice period, so both sides can forecast. Continuous adjustment is unadministrable and will be abandoned.
- State the pass-through share. Whether the full movement flows or a defined proportion of it. Naming a share below one hundred percent is frequently what makes the clause signable.
- Make it symmetric, in writing. Same threshold, same frequency, both directions. This is the element that converts the clause from a price mechanism into a risk mechanism.
7. When should you use none of them?
When the cost problem is not a cost problem. All three mechanisms recover input movement, and none of them fixes a price that was wrong before the input moved.
This is the most common misuse I see. A business with eroded realization announces a surcharge, recovers part of an input increase, and reports margin improvement. The underlying erosion is untouched, because it was never about input cost. It was about four years of discretionary discounting nobody tracked, and no pass-through mechanism will find it.
Check the diagnosis before choosing the instrument. If your gross margin fell while input costs were flat, you have a price problem and an increase is the right conversation. If input costs moved and your margin followed them down, you have a recovery problem and one of these three is right. They are not substitutes, and using the recovery instrument to solve the price problem is how businesses convince themselves they have acted.
About the Stagnation Assassin
Todd Hagopian is a Fortune 500 transformation executive who has generated $3B+ shareholder value across five turnarounds at Berkshire Hathaway, Illinois Tool Works, and Whirlpool. He is VP of Product Strategy and Marketing. Known as The Stagnation Assassin, he is the author of two published books: The Unfair Advantage: Weaponizing the Hypomanic Toolbox and Stagnation Assassin: The Anti-Consultant Manifesto. His blog is published in 15+ languages and read by operators worldwide. Bring him to your stage via his speaking page or connect with him on LinkedIn. His newest book is 10-Minute Transformation (February 23, 2027).