Fixed price sounds like security. In practice, it is often just a nicely packaged margin risk.
Energy more expensive. Material more expensive. Wages more expensive. And somewhere in your company, there is a contract that has been pretending the world is a stable place since 2022.
I see this regularly: rental agreements, maintenance contracts, supply and service contracts that fix prices for years – without any adjustment logic.
What was “predictability” back then is often a silent loss today. Month after month.
1 | Why fixed prices become dangerous in times of inflation (for both sides)
A fixed price is a bet:
- The provider bets that costs will not explode.
- The customer bets that the market will not become permanently cheaper.
If the bet goes wrong, one of two things happens:
1) The provider effectively works “at cost price” (or below) – and later tries to renegotiate frantically.
2) The customer pays too much permanently – and cancels as soon as possible.
Both often end in disputes because the economic problem is then suddenly supposed to be solved legally. Spoiler: That is rarely elegant.
2 | Three ways a contract “breathes” with the economic situation
There is no one magic clause. But there are three robust basic models:
(1) Index clause (value protection)
The price is linked to an index (typically: consumer price index).
Advantage: easy to understand.
Disadvantage: sometimes too rough if your cost structure is not “CPI-typical.”
(2) Cost element clause
The price follows specific cost blocks (e.g., energy share, wage share, material).
Advantage: closer to reality.
Disadvantage: must be clearly defined and documentable – otherwise a program for disputes.
(3) Renegotiation clause / hardship clause
No automatism, but a procedure: Trigger → Obligation to talk → Deadline → Escalation (e.g., mediation) → if necessary, right of termination.
Advantage: suitable for complex services.
Disadvantage: only works if the process is clear.
3 | Pitfalls of standard terms and conditions: “We’ll just make it more expensive” is not a mechanism
In standard terms and conditions, price adjustments often fail not because the idea is bad – but because the clause is poorly constructed.
Typical predetermined breaking points:
- Unclear triggers (“in the event of cost increases” – which ones? from when? how proven?)
- Non-transparent calculation (no formula, no basis, no reference date)
- Unilateralism (only upwards, never downwards)
- Blank check (price change at “discretion” without guardrails)
Note: A right of termination does not automatically save a non-transparent price adjustment clause. If the clause is shaky, the entire price change right is shaky.
4 | Quick check: Am I currently traveling “inflation-blind”?
| Myth | Reality | Risk |
|---|---|---|
| “Fixed price is always safe.” | Fixed price is only safe if costs are stable. | Margin gone / dispute / renegotiation in fire alarm |
| “One sentence on price adjustment is enough.” | Price adjustment needs trigger + calculation + limits. | Clause ineffective, adjustment fails |
| “We are B2B, anything goes.” | Even B2B clauses must be fair and comprehensible. | Surprise in the dispute: standard terms and conditions control takes effect |
| “Right of termination = everything is good.” | Right of termination does not replace transparency. | Legal uncertainty + recovery/litigation risks |
5 | Consumer vs. entrepreneur: two completely different degrees of hardship
Anyone who works with consumers must be particularly clean. There are clear legal guardrails against price increases in standard contracts there – especially for short-term service provision.
More is possible in the B2B area, but “more possible” does not mean “invent freely.” The more unilateral and the less comprehensible, the greater the risk that the clause will not hold up later.
6 | My 5-point plan: How to make your contracts verifiable in 60 minutes
1) Contract inventory
Which contracts run for longer than 12 months? Where does margin depend on energy/wages/materials?
2) Select clause type
Index? Cost blocks? Renegotiation? (Depending on industry and cost structure.)
3) Make mechanics concrete
Trigger (from when), calculation (how exactly), basis/reference dates, limits (cap/floor), information obligation.
4) Organize documentation
If you later have to prove why an adjustment was made, you need data (index levels, cost development, calculation logic).
5) Regulate exit
If the world tips over: special termination rights, adjustment windows, renegotiation obligations.
7 | Conclusion
A good contract breathes with the economic situation.
A bad contract first suffocates the margin – and then the relationship.
If you would like: I will check your standard contracts for “inflation resistance”, suggest concrete adjustment models and formulate the clauses so that they do not fall apart at the first headwind.
Catchphrase: Fixed price without adjustment logic is not a seat belt – more like a decorative ribbon.
