What is IDV in Car Insurance and How to Set It Correctly

IDV is the single most important number in your car insurance policy - it determines the maximum payout you can ever receive. Getting it wrong costs you money.

May 20265 min read

Key Takeaways

1IDV (Insured Declared Value) = the maximum amount the insurer pays if your car is totalled or stolen.
2IDV is calculated as the car's manufacturer's listed selling price minus depreciation based on the car's age.
3A higher IDV means a higher OD premium - but better payout in case of total loss or theft.
4A lower IDV saves premium but means a lower payout; setting IDV too low leaves you underinsured.
5At every renewal, compare the insurer's offered IDV against the current market resale value of your car.

What IDV Means and Why It Matters

IDV stands for Insured Declared Value. It is the current market value of your vehicle as agreed between you and the insurer at the time of buying or renewing the policy. Legally, IDV is defined as the manufacturer's listed selling price of the vehicle minus depreciation based on age. Accessories not supplied by the manufacturer (aftermarket accessories) can be additionally insured for their own IDV.

IDV matters because it is the cap on what the insurer will pay. If your car is stolen and never found, you get the IDV. If your car is totalled in an accident (repair cost exceeds 75% of IDV), you get the IDV minus the salvage value of the wreck. For partial repairs after an accident, the IDV doesn't directly determine the payout - the actual repair cost does (subject to depreciation and deductibles).

IDV is also directly linked to your OD premium. Insurers apply an OD premium rate (typically 1.5% to 3% of IDV depending on the car's age and model) to calculate the OD component of your comprehensive policy. A higher IDV → higher premium → better total loss payout. A lower IDV → lower premium → lower total loss payout.

How IDV is Calculated: The Depreciation Schedule

IRDAI prescribes a standard depreciation schedule for calculating IDV at each renewal. The depreciation is applied to the manufacturer's ex-showroom price (not road price - registration, insurance, accessories are excluded from IDV base calculation).

As your car ages, the IDV falls each year. This is why your insurance premium also drops with each renewal - the OD premium is a percentage of a shrinking IDV base. For a new car, the IDV is typically 95–98% of the ex-showroom price (the 2–5% accounts for transit depreciation).

Up to 6 months old: 5% depreciation (IDV = 95% of ex-showroom)
6 months to 1 year: 15% depreciation (IDV = 85%)
1 year to 2 years: 20% depreciation (IDV = 80%)
2 years to 3 years: 30% depreciation (IDV = 70%)
3 years to 4 years: 40% depreciation (IDV = 60%)
4 years to 5 years: 50% depreciation (IDV = 50%)
Above 5 years: IDV is agreed value between insurer and policyholder based on market survey

For cars older than 5 years, there is no fixed formula. The IDV is mutually agreed. This is where policyholders often get shortchanged - always check current resale prices on platforms like Cars24, CarDekho, or OLX before accepting the insurer's IDV offer.

The Risk of Setting IDV Too Low

When you renew insurance online, most portals offer the option to adjust IDV within a band (typically ±15–20% of the standard computed IDV). Setting a lower IDV reduces your premium. Many people do this without understanding the consequences.

If you set IDV at ₹4 lakh on a car worth ₹5.5 lakh on the resale market, and the car is stolen, you receive only ₹4 lakh - losing ₹1.5 lakh on your actual investment. For a savings of perhaps ₹1,500–₹2,000 in annual premium, you've taken on a ₹1.5 lakh risk in a theft or total loss scenario. This trade-off is rarely worth it unless the car is very old with uncertain market value.

Setting IDV too high is also counterproductive. If you inflate IDV above the car's market value, the insurer will still only pay the market value at the time of loss (per the policy principle of indemnity - insurance cannot result in a profit). You'll just have paid extra premium for no added benefit.

Do not blindly accept the insurer-calculated IDV. For cars over 5 years old, run a quick search on resale portals to see what similar cars are selling for in your city. Use that as your target IDV.

IDV for Electric Vehicles and Modified Cars

For electric vehicles (EVs), the IDV calculation follows the same depreciation schedule applied to the ex-showroom price. However, the battery - which is often 30–50% of the car's total cost - is included in IDV calculation if it is integral to the vehicle. For EVs with a battery lease/subscription model (e.g., some MG and Tata EV variants), the battery may be excluded from IDV and separately insured.

For cars with significant aftermarket modifications or accessories (upgraded audio, alloy wheels, body kits), these are not covered under the standard vehicle IDV. You must separately declare and insure these accessories for their own value. Keep purchase invoices for accessories as the insurer will ask for them during claims.

Practical Tips When Setting IDV at Renewal

At renewal time, check three things: (1) the insurer's quoted IDV, (2) current resale prices on Cars24 or OLX for your make/model/year in your city, and (3) the outstanding loan amount if any. Your IDV should be at least equal to your outstanding loan balance - otherwise a total loss event will leave you with a shortfall after the insurer pays the bank.

Get competing IDV quotes from at least 3 insurers. Because OD premium is a percentage of IDV, and different insurers apply different OD rates, the same IDV can result in very different premiums. Policybazaar, Acko, and direct insurer portals all provide instant IDV and premium quotes for comparison.