IDV in Car Insurance: What It Is and Why It Matters
Insured Declared Value (IDV) is the current market value of your vehicle as agreed between you and your insurer — and it is the maximum amount the insurer will pay in the event of total loss (the car is stolen, destroyed or damaged beyond economic repair). Understanding IDV and setting it correctly is one of the most important aspects of car insurance.
How is IDV Calculated?
IDV is calculated as the manufacturer's ex-showroom price minus depreciation based on the vehicle's age:
| Vehicle Age | Depreciation Rate |
|---|---|
| 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% |
For vehicles over 5 years old, IDV is mutually agreed between insurer and insured based on condition and market value.
Example: A car with an ex-showroom price of ₹10 lakh that is 3 years old has an IDV of ₹10,00,000 × (1 - 0.30) = ₹7,00,000.
Why IDV Matters for Your Claim
In case of:
- Theft: You receive the IDV as the claim settlement (minus deductible)
- Total loss (constructive total loss): If the repair cost exceeds 75% of the IDV, the vehicle is declared a total loss and you receive the IDV
- Partial damage: IDV does not directly affect partial damage claims, but having a correct IDV ensures the repair-to-IDV ratio is accurately assessed
The IDV Trap: Don't Under-Insure to Save Premium
Many people intentionally declare a lower IDV to reduce their premium. This is a serious mistake. If your car is stolen and you declared an IDV of ₹5 lakh when the car's actual market value is ₹7 lakh, you receive only ₹5 lakh — a shortfall of ₹2 lakh.
The premium saving from a lower IDV is typically only ₹500–₹2,000 per year. The potential claim shortfall can be in lakhs. Never under-insure your IDV.
The Other Extreme: Inflated IDV
Some people declare an inflated IDV hoping for a higher claim settlement. Insurers have their own valuation standards and will not pay more than the car's actual market value — regardless of the declared IDV. Inflating IDV only increases your premium without benefit.
Accessories and Modifications
The standard IDV excludes accessories fitted after purchase — CNG kits, alloy wheels, upgraded sound systems etc. You need to specifically declare these and add their value to the IDV (with a separate premium). If your car is stolen with a ₹30,000 CNG kit and it is not declared, you will not receive that amount.
How to Set the Right IDV
- Check current second-hand market prices for your car model, year and condition on platforms like CarDekho, Cars24 and OLX
- Calculate IDV using the depreciation schedule above
- If the market price is close to or below the depreciation-based IDV, use the market price
- Always insure all after-market accessories separately
- Revisit IDV annually at renewal — as your car ages, ensure the IDV reflects current market value
IDV and Age Impact on Comprehensive vs Third-Party Decision
When your car's IDV falls below ₹1.5–2 lakh, the OD component of comprehensive insurance may cost more than the maximum possible claim (the IDV itself). At this point, many advisers suggest switching to third-party only — especially for cars older than 10–12 years. This is a personal financial decision based on your ability to absorb the loss.