Can foreigners claim vehicle diminished value after a traffic accident in Turkey? Learn the 2026 rules on compensation, insurance applications, valuation, fault, foreign-plated vehicles, Insurance Arbitration Commission claims and legal remedies.

A vehicle can be professionally repaired after a traffic accident and still be worth significantly less than it was before the collision. A prospective purchaser examining the vehicle’s accident and repair history may offer less because the car has sustained significant previous damage.

This reduction in market value is commonly referred to as vehicle diminished value.

For foreign nationals involved in traffic accidents in Turkey, the crucial question is whether they can recover this financial loss and, if so, from whom.

In principle, a foreign national who owns an eligible vehicle damaged in a traffic accident may potentially pursue diminished-value compensation under the applicable Turkish liability and insurance framework. Nationality itself is not the decisive issue. Liability, fault allocation, the vehicle’s characteristics, the nature and history of the damage, insurance coverage and whether the claim falls within applicable limitations are considerably more important.

However, 2026 brought an especially important change to the claim process. As of July 1, 2026, the traffic insurance framework was revised so that vehicle damage and diminished value are assessed together within the same claim process. SEDDK stated that a separate additional application for diminished value is no longer required under the revised system. (SEDDK)

For foreign vehicle owners, understanding this new procedure is essential before relying on older online guides.

What Is Vehicle Diminished Value?

Vehicle diminished value is different from the cost of repairing the vehicle.

Consider a car worth TRY 2,000,000 immediately before an accident. The vehicle suffers significant accident damage and is professionally repaired. Although it may function exactly as it did before the collision, its recorded accident history and repaired components could make buyers unwilling to pay the same amount.

If the vehicle’s reasonable post-repair market value is now TRY 1,850,000, there may potentially be a TRY 150,000 economic loss attributable to the accident.

The issue is therefore not:

“How much did the repair cost?”

It is:

“How much market value did the vehicle lose because of the accident?”

Can Foreigners Claim Diminished Value in Turkey?

Potentially, yes.

Foreign nationality does not by itself prevent a person from seeking compensation for qualifying vehicle damage arising from a Turkish traffic accident.

A foreigner who owns a vehicle registered in Turkey can therefore potentially have the same type of diminished-value dispute as another vehicle owner.

However, the claimant must establish the conditions applicable to the particular accident and insurance claim.

These can include the circumstances of the collision, fault allocation, nature of the damage, previous accident history and the market-value consequences of the repair.

A Critical Distinction: Turkish-Plated and Foreign-Plated Vehicles

Foreign nationality and foreign vehicle registration should not be confused.

A German citizen, British citizen, American citizen or another foreign national may own a Turkish-registered vehicle.

That is different from a foreign national driving into Turkey with a foreign-plated vehicle.

This distinction is highly important for diminished-value claims.

The current compulsory motor liability insurance general conditions list diminished-value claims concerning foreign-plated vehicles involved in accidents in Turkey among the excluded circumstances under the relevant coverage framework. (SEDDK)

Therefore:

Foreign owner + Turkish-plated vehicle: a diminished-value claim may potentially be available.

Foreign owner + foreign-plated vehicle: the compulsory traffic insurance diminished-value position is materially different and requires separate legal assessment.

Foreigners should not assume that nationality and vehicle registration produce the same legal result.

Major 2026 Change: Separate Diminished-Value Applications Have Been Removed

This is one of the most important developments affecting traffic accident claims in 2026.

Previously, vehicle owners frequently pursued the physical vehicle-damage claim and diminished-value claim through separate steps.

SEDDK changed this structure.

In its June 12, 2026 announcement, SEDDK explained that the new system was designed so that diminished-value compensation would be assessed together with vehicle damage rather than requiring an additional separate application. (SEDDK)

The revised expert-report framework entered into force on July 1, 2026. Under SEDDK Circular 2026/11, when an insurance expert is appointed for vehicle damage under compulsory traffic insurance, the expert must also include the diminished-value calculation in the relevant standardized report. (SEDDK)

This is a significant procedural improvement for accident victims.

How Is Vehicle Diminished Value Calculated in 2026?

Diminished value is not simply calculated as a fixed percentage of the repair invoice.

The current framework focuses on the actual economic effect of the accident on the vehicle.

Relevant factors include the vehicle’s:

brand, age, model, level of use, damaged components, previous damage history, pre-accident second-hand market value and post-repair second-hand market value.

The 2026 amendments expressly focus on the difference between the vehicle’s second-hand value immediately before the accident and its value after repair. (Anadolu Ajansı)

This means two vehicles with identical repair bills may have very different diminished-value claims.

Example of a Diminished-Value Claim

Assume a foreign national owns a relatively new premium vehicle registered in Turkey.

Before the accident:

Market value: TRY 3,000,000

After a serious collision, the vehicle requires substantial body repairs.

Repair cost:

TRY 350,000

After proper repairs, market evidence indicates that the vehicle would reasonably sell for:

TRY 2,750,000

The potential diminished value is not automatically TRY 350,000.

The relevant economic loss may instead concern the approximately:

TRY 250,000 reduction in post-accident market value.

The actual compensable amount would still depend on the applicable insurance rules, expert assessment, fault and other circumstances.

Fault Is Extremely Important

Diminished-value compensation is connected with liability for the accident.

If the other driver is entirely responsible, the claimant’s position will generally be stronger.

If responsibility is shared, the recoverable amount may be affected accordingly.

This means the accident report and fault determination can become just as important as the vehicle valuation itself.

A claimant who disagrees with the fault allocation should not focus exclusively on the diminished-value calculation while ignoring liability.

What If the Foreigner Was Partly at Fault?

Partial fault does not necessarily mean that no claim exists.

Suppose the total diminished value is assessed at TRY 200,000 but the claimant bears part of the responsibility for the collision.

The recoverable amount may need to reflect the applicable allocation of liability.

The precise calculation should be made according to the circumstances rather than assuming that any degree of fault eliminates the claim completely.

Which Insurance Company Should Pay?

In the ordinary third-party traffic accident scenario, the compulsory motor liability insurer of the responsible vehicle is central to the claim.

The exact party or insurer against whom recovery should be pursued depends on the accident and insurance structure.

Foreign claimants should therefore identify:

the responsible vehicle, insurer, policy, accident date and applicable coverage.

Where losses exceed applicable insurance coverage or additional liability questions arise, claims against responsible persons may also need to be considered.

2026 Compulsory Traffic Insurance Limits

For the period from January 1 through December 31, 2026, SEDDK currently identifies the compulsory motor liability insurance property-damage limit for the relevant vehicle categories as TRY 400,000 per vehicle and TRY 800,000 per accident.

This is important because physical vehicle damage and diminished value can interact with the applicable property-damage coverage.

For a high-value vehicle suffering substantial damage, the overall loss may exceed available compulsory insurance coverage.

The claimant should therefore calculate the entire accident loss rather than considering diminished value in isolation.

Diminished Value and Repair Costs Are Different Losses

A common misunderstanding is:

“The insurer paid for my repairs, so I cannot claim diminished value.”

That is not necessarily correct.

Repair compensation concerns the cost of restoring the damaged vehicle.

Diminished-value compensation concerns the remaining reduction in the vehicle’s market value after repair.

The 2026 reforms actually reinforce this distinction while integrating both calculations into the same claim process.

SEDDK’s revised framework requires the appointed expert to address diminished value alongside vehicle damage. (SEDDK)

What Does the Insurance Expert Examine?

Under the revised system, the expert assesses both physical damage and the potential market-value loss.

The vehicle’s pre-accident and post-repair condition must be evaluated together with characteristics affecting its second-hand value.

This can include:

age, mileage, previous accidents, location and severity of current damage, replaced or repaired parts, market position and general vehicle condition.

The objective should be to determine the real economic loss caused by the accident, rather than mechanically applying an arbitrary percentage.

Previous Accident History Matters

A vehicle’s previous accident history can significantly affect a diminished-value calculation.

Suppose the current collision damages a component that had already suffered serious damage in an earlier accident.

The insurer may argue that the current collision did not produce the full market-value reduction claimed.

This does not automatically mean that a vehicle with previous accident history can never generate a diminished-value claim.

Instead, the earlier and current damage must be distinguished carefully.

Does Vehicle Age Matter?

Yes, vehicle age can influence market impact.

A relatively new vehicle with limited mileage and no previous serious accident history may suffer a substantial resale-value reduction following a significant collision.

An older, heavily used vehicle with multiple previous accidents may experience a smaller additional market effect.

Age is therefore relevant, but it should be considered alongside the vehicle’s overall characteristics.

Does Mileage Matter?

Yes.

Mileage affects the second-hand market value of a vehicle and therefore can influence diminished-value assessment.

Two otherwise identical vehicles may have different pre-accident values if one has 20,000 kilometers and the other has 220,000 kilometers.

The correct analysis is market-based rather than dependent on a single factor.

Which Parts Were Damaged?

The nature of the damage can materially affect resale value.

A prospective buyer may react differently to minor cosmetic damage than to substantial structural repair.

The 2026 framework specifically considers the parts damaged by the accident as one of the relevant diminished-value factors. (Anadolu Ajansı)

Accurate photographs and repair documentation are therefore valuable evidence.

Some Minor Damage May Not Generate the Same Claim

Not every scratch or minor repair creates substantial compensable diminished value.

The current general conditions identify several categories of minor damage among exclusions from diminished-value coverage, including specified minor bodywork and particular components under the circumstances set out in the conditions. (SEDDK)

The precise damage should therefore be compared with the current rules rather than assuming that every repair automatically creates a separate market-value loss.

What About Total-Loss Vehicles?

Diminished value is fundamentally concerned with a vehicle that is repaired but remains worth less because of its accident history.

Where a vehicle is treated as a total or heavy loss, the legal and insurance analysis changes.

Indeed, the 2026 standardized expert-report framework provides a different report template where the expert determines that the vehicle is a total or heavy loss. (SEDDK)

In such cases, the principal dispute may concern the vehicle’s pre-accident market value and total-loss compensation rather than ordinary post-repair diminished value.

Foreign-Plated Vehicles Require Special Attention

This issue is especially important for tourists, expatriates and temporary visitors driving vehicles registered abroad.

The current compulsory traffic insurance general conditions expressly list diminished-value claims for foreign-plated vehicles involved in accidents in Turkey among the excluded categories. (SEDDK)

This does not mean that every possible legal theory connected with a foreign-plated vehicle is automatically extinguished.

It does mean that the ordinary compulsory traffic insurance diminished-value route should not be assumed to apply in the same way as it does to an eligible Turkish-plated vehicle.

The particular accident, insurance arrangements, liable parties and possible alternative legal claims require individual examination.

What Documents Should a Foreign Vehicle Owner Preserve?

Evidence should be collected immediately after the accident. Important documents commonly include the accident report, photographs and video of the vehicles and accident scene, vehicle registration documentation, insurance information, repair records, expert reports, invoices, previous damage records where relevant, correspondence with the insurer and documents showing ownership of the vehicle.

Foreign claimants should preserve the original electronic files where possible.

Photographs taken before repairs can become especially important if the extent or location of damage is later disputed.

Do Not Repair the Vehicle Without Documenting the Damage

Emergency repairs may sometimes be necessary.

However, the claimant should ensure that the original condition of the vehicle is adequately documented.

If every damaged component is repaired or replaced before proper evidence is obtained, later disagreements about the extent and cause of damage can become more difficult.

The insurer’s inspection and expert procedures should therefore be coordinated appropriately.

What If the Insurer Calculates the Diminished Value Too Low?

The fact that the insurer recognizes a diminished-value claim does not mean its calculation is necessarily correct.

A dispute may arise because the claimant believes the expert:

underestimated the pre-accident market value, overestimated the post-repair value, failed to account properly for significant damage or incorrectly treated earlier damage as equivalent to the current collision.

The claimant should obtain the calculation and identify exactly where the disagreement arises.

Independent expert evidence may be appropriate in a substantial dispute.

What If the Insurance Company Pays Nothing?

The claimant should first determine the reason.

Possible arguments may concern:

fault, exclusions, vehicle registration, previous damage, nature of the repair, total-loss status or other eligibility questions.

A written rejection should be obtained and analyzed.

The correct response is different when an insurer says:

“Your vehicle suffered no diminished value”

than when it says:

“This category is outside coverage.”

Can Foreigners Use the Insurance Arbitration Commission?

Potentially, yes, where the dispute satisfies the Commission’s jurisdictional and procedural requirements.

This can be important where the insurer rejects the diminished-value claim or pays substantially less than the claimant believes is due.

Foreign nationals should nevertheless pay particular attention to the Commission’s filing procedure and representation requirements applicable to them.

A dispute should not be filed before confirming the necessary prior application, evidence and procedural requirements.

Can a Foreign Owner Sue?

Depending on the circumstances, judicial proceedings may also be available.

A claimant should determine the appropriate defendant, jurisdiction, procedural prerequisites and evidence before filing.

Where the dispute concerns both insurance coverage and liability beyond insurance limits, the overall litigation strategy may require examination of more than the insurance company alone.

Do Not Sign a Broad Release Without Legal Review

An insurer may offer payment and ask the claimant to sign a settlement or release.

Foreign claimants should determine whether the document merely acknowledges payment or purports to terminate all additional claims arising from the accident.

This becomes particularly important where several losses exist simultaneously, such as:

repair damage, diminished value, bodily injury and loss of earnings.

Do not assume that a document described informally as a “payment receipt” has no wider legal consequences.

What If the Insurer Already Paid Repair Costs?

The claim file should be reviewed to determine whether diminished value was also assessed and included.

This is particularly important after the July 1, 2026 reforms because the new framework integrates the two assessments.

The claimant should request a breakdown rather than assuming that the total payment concerns only repair expenses.

A Major 2026 Procedural Improvement

The July 2026 change should make diminished-value claims more visible during the ordinary vehicle-damage process.

SEDDK’s official explanation states that the reform aims to reduce disputes and accelerate compensation by eliminating the need for a separate diminished-value application and standardizing calculations and expert reports. (SEDDK)

This is particularly useful for foreigners who may previously have been unaware that diminished value was a separate compensable loss.

New Motor Claim Infrastructure in 2026

SEDDK also introduced broader changes to motor insurance claim administration in July 2026.

Its official announcements dated July 24, 2026 include the establishment of the Alo 193 insurance claim notification and complaint framework and rules concerning receipt of motor vehicle insurance damage applications through a common claim notification center. (SEDDK)

Foreign claimants should therefore rely on procedures applicable to the date of their claim rather than older online instructions.

Example: Foreign Resident With a Turkish-Registered Vehicle

Assume a foreign resident owns a Turkish-registered vehicle worth approximately TRY 2,500,000 before an accident.

Another driver is primarily responsible.

The accident causes significant damage to important body components.

The repair cost is TRY 300,000.

After proper repair, the vehicle’s reasonable second-hand market value is assessed at TRY 2,300,000 because of its accident history.

There may potentially be:

TRY 300,000 physical repair loss

and

TRY 200,000 diminished-value loss.

The precise recoverable amounts depend on fault, applicable coverage, limits and the expert assessment.

The important point is that repair cost and diminished value are conceptually separate economic losses, even though the revised 2026 procedure assesses them within the same claim process.

Example: Tourist With a Foreign-Plated Vehicle

Now assume a foreign tourist enters Turkey with a vehicle registered abroad and is involved in an accident caused by another driver.

The car is repaired but becomes less valuable in its home country’s second-hand market.

This situation should not be treated identically to the previous example.

The current compulsory traffic insurance general conditions specifically exclude diminished-value claims concerning foreign-plated vehicles from the relevant diminished-value coverage. (SEDDK)

The owner would therefore need an individualized assessment of any alternative recovery route rather than relying on the ordinary compulsory insurance diminished-value procedure.

15-Step Action Plan After a Traffic Accident

A foreign vehicle owner concerned about diminished value should generally:

1. Document the accident scene thoroughly.
2. Obtain the accident documentation.
3. Preserve photographs of all vehicle damage.
4. Identify the responsible vehicle and insurer.
5. Verify the fault determination.
6. Preserve vehicle registration and ownership documents.
7. Keep previous damage and maintenance records.
8. Ensure that the damage is properly inspected before repair.
9. Preserve repair quotations and invoices.
10. Obtain the insurer’s expert assessment.
11. Check whether diminished value was included in the claim assessment.
12. Review the pre-accident and post-repair market values used.
13. Challenge an inadequate calculation with appropriate evidence.
14. Consider insurance arbitration or litigation if the dispute remains unresolved.
15. Check applicable deadlines before delaying further action.

The strongest diminished-value claims are supported by evidence of both the accident damage and the actual effect of that damage on the vehicle’s market value.

Frequently Asked Questions

Can a foreigner claim vehicle diminished value after an accident in Turkey?

Potentially, yes. Foreign nationality itself does not prevent an eligible vehicle owner from pursuing diminished-value compensation. Vehicle registration, fault, damage characteristics and insurance coverage are more important.

Is diminished value the same as repair cost?

No. Repair cost concerns restoring physical damage. Diminished value concerns the remaining reduction in the vehicle’s second-hand market value after repair.

Do I need to make a separate diminished-value application in 2026?

Under the revised framework effective July 1, 2026, diminished value is assessed together with vehicle damage, and SEDDK states that the separate additional application requirement has been removed. (SEDDK)

How is diminished value calculated?

The current framework considers factors including the vehicle’s brand, age, model, level of use, damaged components, previous damage and the difference between its pre-accident and post-repair second-hand market values. (Anadolu Ajansı)

Can I claim diminished value if the vehicle was repaired perfectly?

Potentially, yes. The entire concept of diminished value concerns the possibility that a properly repaired vehicle may nevertheless have a lower resale value because of its accident history.

Can I claim if I was partly responsible for the accident?

Potentially, but fault allocation can affect the amount recoverable. The specific accident and liability percentages should be reviewed.

Can I claim for a foreign-plated vehicle?

The position is materially different. Current compulsory traffic insurance general conditions list diminished-value claims involving foreign-plated vehicles in Turkish accidents among the excluded categories under that coverage. (SEDDK) Alternative legal recovery possibilities require separate assessment.

What if the insurer offers too little diminished-value compensation?

Request the underlying calculation and determine whether the pre-accident value, post-repair value, previous damage or other factors were assessed incorrectly. Depending on the dispute, further insurance application, expert evidence, arbitration or litigation may be considered.

Can diminished value exceed the insurance limit?

The available compulsory insurance coverage is subject to applicable limits. SEDDK currently lists the 2026 property-damage limit at TRY 400,000 per vehicle and TRY 800,000 per accident for the relevant vehicle categories. Claims exceeding available insurance coverage may require further liability analysis.

When should a foreign vehicle owner seek legal assistance?

Legal assessment can be particularly valuable where the diminished value is substantial, fault is disputed, the insurer rejects or significantly underpays the claim, the vehicle is foreign-plated, the total loss exceeds insurance coverage or the claimant is asked to sign a settlement or release.

Client-Focused Legal Support for Foreign Vehicle Owners

A repaired vehicle is not necessarily financially restored to its pre-accident position. Significant accident history can reduce resale value even where the repair itself has been completed correctly.

The 2026 reforms are particularly important because diminished-value compensation is now integrated into the ordinary vehicle-damage assessment. Since July 1, 2026, the appointed insurance expert must address diminished value within the standardized traffic insurance expert-report framework where applicable. (SEDDK)

For foreign nationals, however, each claim should still be reviewed individually. Fault allocation, vehicle registration, previous damage, current damage, market value, insurance limits and settlement documents can materially affect recovery. Foreign-plated vehicles require particular caution because the current compulsory traffic insurance framework treats their diminished-value claims differently. (SEDDK)

Fırat Fesih Kaya Law Office assists foreign individuals and international clients with vehicle diminished-value claims, traffic accident compensation, rejected and underpaid motor insurance claims, vehicle damage disputes, total-loss claims, Insurance Arbitration Commission proceedings and traffic accident litigation in Turkey.

Where an insurer has already calculated or paid compensation, the expert report and payment breakdown should be reviewed before the claimant accepts that the file has been fully resolved. A significant difference between the insurer’s assessment and the vehicle’s genuine post-accident market loss may justify further legal action.

Phone: +90 312 434 22 22
Mobile: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Address: Mevlana Boulevard No: 221, Yıldırım Tower, Balgat, Çankaya, Ankara, Turkey