Extreme Inflation Affects a Long-Term Contract in Turkey: Adaptation and Termination Remedies – 2026 Updated Guide

Can a long-term contract in Turkey be adapted or terminated because of extreme inflation? Learn about indexation, hardship, price revision, evidence, and foreign-company remedies.

Extreme inflation can fundamentally change the economic balance of a long-term commercial contract in Turkey. A fixed-price supply agreement, construction contract, lease, distribution arrangement, service agreement, or technology contract may become significantly more expensive for one party to perform.

However, inflation does not automatically permit a party to increase the price, stop performing, or terminate the contract. The parties should first examine the price-adjustment clause, currency provisions, hardship rules, force majeure terms, and the allocation of economic risk.

Depending on the circumstances, a party may request renegotiation, contractual price adjustment, judicial adaptation, suspension, termination, or withdrawal from the agreement.

Is Inflation Automatically a Legal Ground for Adjustment?

No. Commercial contracts generally allocate certain market risks to the parties. Inflation, currency movement, increased labor costs, and changing market prices may be foreseeable risks, particularly for experienced commercial parties.

A claim becomes stronger where inflation is extraordinary, unforeseeable in its extent, and causes a fundamental disruption to the contractual balance. The party seeking relief should show that continuing performance has become excessively burdensome rather than merely less profitable.

The contract date, duration, currency, industry, payment structure, and prior inflation expectations may all be relevant.

Review the Contract’s Price Clause

The first step is to determine whether the agreement already provides a solution.

The contract may include:

• Consumer or producer price indexation;
• Currency-based pricing;
• A foreign-currency payment obligation;
• Raw-material adjustment;
• Labor-cost adjustment;
• Periodic price review;
• Renegotiation after a defined threshold;
• A hardship clause;
• A force majeure provision;
• A change-in-law clause;
• A right to suspend or terminate.

If a valid adjustment formula exists, the parties should apply that formula rather than demanding an informal price increase.

The agreement should also be checked for the relevant base date, exchange rate, index, notice method, calculation period, and whether the clause applies to existing orders or only future performance.

Hardship and Judicial Adaptation

Turkish contract law may allow a party to request adaptation when an extraordinary and unforeseeable event fundamentally changes the balance of the contract and makes performance excessively difficult.

A party seeking adaptation may generally need to establish that:

• The economic change was extraordinary;
• The change could not reasonably have been anticipated;
• The party did not cause the problem;
• The contractual balance was seriously disrupted;
• Performance became excessively burdensome;
• The contract has not been fully performed;
• The requested adjustment is reasonable.

The court or arbitral tribunal may consider the original price, the parties’ risk allocation, the duration of the agreement, the type of business, the payment currency, and the extent of the inflationary impact.

Adaptation is fact-specific. Extreme inflation may support a claim in one long-term agreement but not in another.

What Does Adaptation Mean?

Adaptation may involve changing the contract to restore a reasonable economic balance. Possible adjustments may include:

• Revising the contract price;
• Linking payments to an agreed index;
• Changing the payment currency;
• Adjusting delivery quantities;
• Extending performance periods;
• Reallocating cost increases;
• Revising the payment schedule;
• Modifying service or production obligations.

The objective is generally to preserve the contract where continued performance remains possible. A court or tribunal may be reluctant to rewrite the entire commercial arrangement.

The party requesting adaptation should propose a practical formula supported by financial evidence.

Can a Party Unilaterally Increase the Price?

Usually, no, unless the agreement allows a unilateral or formula-based adjustment.

A supplier that suddenly increases the price without a contractual or legal basis may be in breach. A buyer that refuses to pay a validly adjusted price may also be in breach.

The parties should communicate in writing and clearly state whether a proposed payment is accepted, disputed, or made with a reservation of rights.

Neither party should assume that a telephone conversation or informal message changes the original contract.

Force Majeure and Inflation

Force majeure and hardship are not identical. Force majeure generally concerns events that prevent or seriously obstruct performance, while hardship concerns a severe disruption of the economic balance.

Inflation may not qualify as force majeure simply because it reduces profitability. The agreement should be reviewed to determine whether it expressly includes inflation, currency crisis, supply disruption, government action, or extraordinary economic events.

A party should not rely on a general force majeure clause without explaining how the event prevents or materially obstructs performance.

Can the Contract Be Terminated?

Termination may be possible where:

• The contract contains an inflation or hardship termination clause;
• Renegotiation fails under the agreement;
• Adaptation is impossible;
• The other party refuses a legally required adjustment;
• Continued performance becomes legally or practically impossible;
• The other party commits a material breach;
• The parties agree to terminate.

Termination without a valid basis may result in damages, penalties, restitution, and claims for lost profits.

The terminating party should follow the contract’s notice requirements and identify the reason, effective date, and consequences of termination.

Long-Term Supply and Construction Contracts

Inflation disputes are especially common in long-term supply and construction agreements.

A contractor may face increased prices for steel, cement, energy, labor, machinery, transportation, and imported components. A buyer may argue that the contractor accepted a fixed-price risk.

The parties should examine escalation clauses, provisional sums, change orders, delivery delays, design changes, material procurement, and payment milestones.

Evidence should show the cost at the time of contracting and the cost after the inflationary event.

Leases and Service Agreements

Long-term leases and service contracts may also be affected by extreme inflation. The parties should examine rent-adjustment clauses, service fees, maintenance costs, personnel expenses, and payment currency.

A party should distinguish between legally regulated adjustments and contractual adaptation. The applicable rules may differ depending on the type of agreement and the parties’ status.

A foreign company should obtain specific advice before withholding rent or service payments.

Deposits, Advance Payments, and Restitution

If the contract is terminated or withdrawn from, the parties may need to address deposits, advance payments, delivered goods, partial services, equipment, and benefits already received.

The party seeking repayment should preserve payment records and calculate the amount due after accounting for delivered performance.

Currency conversion, interest, exchange-rate loss, and contractual penalties may also become disputed.

Evidence for an Inflation Claim

The party seeking adaptation or termination should preserve:

• The signed contract and amendments;
• Original price calculations;
• Currency assumptions;
• Cost forecasts;
• Invoices and supplier quotations;
• Payroll and energy records;
• Import and transportation expenses;
• Exchange-rate data;
• Payment schedules;
• Communications requesting renegotiation;
• Expert accounting reports;
• Evidence of performance and partial delivery.

The evidence should demonstrate how inflation changed the contractual balance rather than merely showing that costs increased.

Digital invoices, procurement records, electronic signatures, cloud accounting data, and messaging records may be particularly important in 2026.

Foreign Companies and Cross-Border Contracts

Foreign companies should review the governing law, arbitration, jurisdiction, currency, payment, delivery, indexation, and hardship provisions.

An international sales agreement may also involve an international sales regime depending on the parties, transaction, and contractual choices. The agreement should be analyzed before the foreign company relies on a foreign legal concept of hardship or force majeure.

A Turkish lawyer can assist with renegotiation, formal notices, adaptation claims, termination, refund demands, arbitration, commercial litigation, and enforcement.

Lawyer Fırat Fesih Kaya assists foreign companies with Turkish long-term contracts, inflation disputes, price adjustment, hardship, force majeure, termination, and commercial litigation.

2026 Practical Considerations

In 2026, long-term commercial contracts should clearly allocate inflation and currency risk. Parties should define the adjustment index, trigger threshold, review date, evidence, renegotiation process, and consequences if negotiations fail.

Foreign companies should avoid relying on generic clauses such as “prices may be revised when necessary.” A detailed mechanism is more likely to reduce future disputes.

When extreme inflation begins affecting performance, the party should act promptly, preserve financial evidence, request renegotiation in writing, and avoid unilateral non-performance without a legal basis.

Frequently Asked Questions (FAQ)

1. Can extreme inflation justify contract adaptation in Turkey?
Potentially. The party may need to prove an extraordinary and unforeseeable change that fundamentally disrupted the contractual balance.

2. Does inflation automatically allow a supplier to increase prices?
No. A price increase generally requires a contractual adjustment mechanism, mutual agreement, or a legally recognized basis.

3. Can a long-term contract be terminated because of inflation?
Potentially, if the contract allows it, performance becomes impossible, adaptation fails, or the other party commits a material breach.

4. Is reduced profitability enough to prove hardship?
Usually not by itself. The party may need to show that performance became excessively burdensome rather than simply less profitable.

5. What if the contract contains an indexation clause?
The price should generally be calculated according to the agreed index, formula, base date, and notice procedure.

6. Is inflation a force majeure event?
Not automatically. The contract and the actual effect of inflation on performance must be examined.

7. Can a party stop performing while requesting adaptation?
Not automatically. Unjustified suspension may itself constitute a contractual breach.

8. Can a court change the contract price?
A court or arbitral tribunal may consider adaptation where the legal and contractual requirements are satisfied.

9. What evidence is needed for an inflation dispute?
The contract, original cost calculations, invoices, exchange-rate records, financial statements, supplier quotations, and renegotiation communications may be important.

10. What should a foreign company do first?
The company should review the adjustment clause, preserve financial evidence, send a formal renegotiation notice, and obtain Turkish legal advice before stopping performance or terminating.

This article is provided for general informational purposes only and does not constitute legal advice. We recommend consulting a lawyer about your specific circumstances to avoid any loss of rights.

Expert Legal Support for Inflation-Affected Contracts

Expert legal support is essential to avoid losing valuable rights. By working with a lawyer experienced in Turkish commercial contracts, hardship, price adjustment, inflation, currency disputes, force majeure, termination, and arbitration, foreign companies can protect their commercial interests. Fırat Fesih Kaya Law Office provides professional legal support for long-term contract disputes in Turkey and abroad.

Call Now: +90 312 434 22 22
WhatsApp: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Office: Mevlana Boulevard No:221, Yildirim Tower, Balgat, Cankaya, Ankara, Turkey