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Created on:

25 May 2023

Last Updated on:

10 Apr 2026

Car insurance is a contract between the owner of the car and an insurance company that serves to safeguard your vehicle from several unforeseen risks such as loss due to theft, accidents, or natural disasters.

Insured Declared Value (IDV) in car insurance

Car insurance is a contract between the owner of the car and an insurance company designed to protect the vehicle from various unforeseen risks such as theft, accidents, or natural disasters. For any new or used car to be legally driven in India, it needs to be covered under a valid car insurance policy. Beyond legal compliance, knowing that your car is insured against unforeseen events provides peace of mind. When purchasing or renewing a car insurance policy, you pay a premium to the insurer. Several factors influence this premium, and Insured Declared Value (IDV) is among the most significant.

What is IDV in car insurance and why is it important?

Insured Declared Value (IDV) is the maximum sum assured under your car insurance policy for own damage claims. It represents the approximate market value of your vehicle at the time the policy is issued, calculated by deducting the applicable depreciation from the car’s ex-showroom price.

If your car is stolen or damaged beyond repair, the claim amount is calculated based on the IDV. A higher IDV means a higher potential payout, while a lower IDV reduces both the premium and the claim amount. Choosing the right IDV ensures that you are neither underinsured nor overpaying for coverage.

The basic formula for IDV is as follows.

IDV = Ex-showroom price of the car minus applicable depreciation percentage

Key factors that influence your car insurance IDV

Several factors go into determining the IDV of your vehicle.

  • Type of car: Hatchbacks, sedans, and SUVs differ in value, with SUVs generally carrying a higher IDV due to their higher purchase cost and more expensive repair parts.

  • Make and model: Premium or luxury cars have higher IDVs because their market price and repair costs are both higher. A BMW 3 Series will have a much higher IDV than a Maruti Swift of the same age.

  • Depreciation: As your car ages, its value drops due to wear and usage. IRDAI prescribes standard depreciation percentages based on vehicle age, and these are applied to the ex-showroom price to arrive at the IDV.

  • Place of registration: Ex-showroom prices vary by city, which means two identical cars registered in different cities can have slightly different base values for IDV calculation.

  • Accessories:  Factory-fitted accessories are included in the ex-showroom price. Non-factory accessories like alloy wheels or a music system are added separately after applying 50% depreciation on their value.

  • Vehicle condition. For cars older than 5 years, the IDV is not calculated using a fixed formula. Instead, the insurer and the policyholder mutually agree on a value based on the car’s condition, mileage, and current market demand.

Why is calculating the right IDV important?

There is a direct relationship between your car’s IDV and the premium you pay. A higher IDV means a higher premium because the insurer’s maximum payout obligation increases. A lower IDV brings the premium down but also reduces the claim amount.

Opting for a low IDV just to save on premium can be risky. If your car is stolen or totalled, the insurer will only pay up to the insured IDV amount, which may fall short of the car’s actual replacement cost. On the other hand, setting an excessively high IDV results in unnecessarily high premiums without any additional claim benefit, since the insurer pays only the actual market value at the time of the loss.

The recommended approach is to set the IDV close to your car’s current market value when purchasing or renewing the policy.

How to calculate IDV for car insurance

Calculating IDV is straightforward if you know your car’s ex-showroom price and its age.

Step 1: Understand the depreciation schedule

The IRDAI prescribes standard depreciation rates based on the age of the vehicle.

Vehicle Age

Depreciation %

Less than 6 months

5%

6 months to 1 year

15%

1 to 2 years

20%

2 to 3 years

30%

3 to 4 years

40%

4 to 5 years

50%

More than 5 years

Mutually agreed between insurer and policyholder

Step 2: Apply the formula

IDV = Ex-showroom price minus Depreciation value

Step 3: Include accessories if applicable

For non-factory-fitted accessories, the depreciated value (usually 50% depreciation) is added separately.

IDV = (Ex-showroom price minus Depreciation) + (Cost of accessories minus 50% depreciation on accessories)

Example calculation

Suppose your car’s ex-showroom price is ₹10,00,000 and it is 2 years old.

  • Depreciation at 30% = ₹3,00,000.

  • Cost of non-factory accessories = ₹50,000.

  • Depreciation on accessories at 50% = ₹25,000.

IDV = (₹10,00,000 minus ₹3,00,000) + (₹50,000 minus ₹25,000) = ₹7,00,000 + ₹25,000 = ₹7,25,000

How does vehicle depreciation affect IDV?

Depreciation is the reduction in your vehicle’s value over time due to usage, aging, and wear. It directly determines how much your car is worth in the eyes of the insurer and therefore how much IDV is assigned to the policy.

As the car ages, the depreciation percentage increases, which lowers the IDV and consequently reduces the own-damage premium. However, this also means the maximum claim amount goes down each year. Commercial vehicles typically depreciate faster than private vehicles due to heavier usage, and their IDV calculations reflect this with higher depreciation rates, often 10 to 15 percent more annually than private cars.

Relation between a car’s IDV and its insurance premium

The own-damage component of your car insurance premium is directly linked to the IDV. When the IDV is high, the premium increases because the insurer’s potential payout in case of a claim is larger. When the IDV is low, the premium decreases, but so does the coverage.

Finding the right IDV means striking a balance between affordable premiums and sufficient protection. If you set the IDV significantly below market value to save on premiums, you risk being underinsured. If you inflate it, you pay more without any corresponding increase in actual claim benefit.

Benefits of higher IDV

Choosing a higher IDV for your car insurance offers certain advantages, particularly for newer or more expensive vehicles.

  • Higher claim payout. In the event of total loss or theft, you receive a larger settlement amount, which makes it easier to replace the car or cover remaining loan obligations.

  • Better loan protection. If you have an active car loan, a higher IDV ensures the insurance payout is closer to the outstanding loan amount, reducing the gap you would need to cover out of pocket.

  • Closer to actual replacement cost. A higher IDV keeps the insured value closer to what it would actually cost to buy a similar vehicle in the market, especially for cars that hold their value well.

The trade-off is a higher annual premium, so higher IDV works best for new cars, cars with active loans, and premium models where the replacement cost is substantial.

Conclusion

Insured Declared Value is the foundation of your car insurance policy’s own-damage coverage. It determines the maximum amount the insurer will pay in case of total loss or theft, and it directly affects the premium you pay each year. The IDV is calculated by deducting the applicable depreciation from the ex-showroom price, with IRDAI-prescribed rates based on the vehicle’s age. Setting the IDV close to your car’s actual market value gives you the best balance between adequate protection and a reasonable premium. Reviewing and adjusting the IDV at every renewal is a simple step that keeps your coverage aligned with your car’s current worth.

FAQs

What is the importance of IDV in car insurance?

IDV represents your car’s market value and sets the upper claim limit for theft or total loss. It plays a key role in premium calculation and claim settlements.

How is car insurance premium calculated with respect to IDV?

Your premium is influenced by the chosen IDVhigher IDV means higher premium due to greater risk exposure for the insurer.

Can I calculate the IDV of my car myself?

Yes. Using your ex-showroom price and the vehicle's age to apply depreciation rates as per IRDAI guidelines helps you calculate IDV. Many insurers also offer online IDV calculators.

Do commercial and private vehicles have different IDVs?

Yes, commercial vehicles typically experience higher depreciation due to intense usage and therefore have different IDV calculations compared to private vehicles.

Is opting for the highest possible IDV beneficial?

While higher IDV increases claim amount, it also increases your premium. It’s best to select an IDV close to your car’s real market value.

Can the claim amount exceed the IDV?

No. The maximum claim payable in case of total loss or theft cannot exceed the agreed IDV at policy inception.

What happens if I understate my car’s IDV?

Understating IDV reduces your premiums but also lowers claim payout, which might not be sufficient to cover your losses fully.

Can IDV be changed during policy renewal?

Yes, IDV can be revised at the time of policy renewal to reflect the current market value of the vehicle. It is advisable to review and update the IDV annually to avoid under or over-insurance.

What if my vehicle’s condition affects the IDV?

For vehicles older than 5 years, insurers and policyholders mutually agree on the IDV considering the vehicle’s condition, mileage, and market demand.

How do I use an online IDV calculator?

You need to enter your car’s make, model, variant, registration date, and accessories cost. The calculator applies depreciation rates to estimate the current IDV accurately.

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Team Zurich Kotak GIC

The content of this blog has been created and carefully reviewed by the esteemed team at Zurich Kotak General Insurance, with the sole purpose of providing valuable guidance and sharing insights on the importance of general insurance. Our objective is to assist users in making informed decisions when purchasing or renewing insurance policies for their cars, bikes, and health. Our expertly curated information aims to empower our readers with the knowledge they need to protect their valuable assets and financial interests.

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