IDV, or Insured Declared Value, is the maximum amount your insurer will pay you if your car is stolen or damaged beyond repair. In simple terms, it is the current market value of your car as agreed in your policy, and it acts as the upper limit of your claim in a total loss. Getting this number right at the time of buying or renewing your comprehensive car insurance is one of the most important decisions you will make, because it directly affects both your premium and your payout.
Think of IDV as the price tag your insurer puts on your car for the year. If your car is declared a total loss, meaning it is stolen and not recovered, or damaged so badly that repair costs are not worth it, the insurer settles your claim based on the IDV, not on what you originally paid for the vehicle.
A few things worth knowing up front:
So when you receive a quote and see a figure like roughly Rs 6,80,000 listed as IDV, that is the insurer saying, "This is the most we will hand you if your car is a write-off this year."
The starting point is the manufacturer's listed selling price of your exact car model, minus the value lost to age, which is called depreciation. IRDAI lays out a standard depreciation schedule that most insurers follow for the first five years, which keeps things consistent across companies like HDFC ERGO, ICICI Lombard, Bajaj Allianz, and Tata AIG.
Here is the standard depreciation grid used to arrive at IDV:
| Age of vehicle | Depreciation on IDV |
|---|---|
| Not exceeding 6 months | 5 percent |
| 6 months to 1 year | 15 percent |
| 1 to 2 years | 20 percent |
| 2 to 3 years | 30 percent |
| 3 to 4 years | 40 percent |
| 4 to 5 years | 50 percent |
The formula in plain words is:
IDV = (manufacturer's listed selling price minus depreciation) plus the value of any accessories not factory-fitted, minus depreciation on those accessories.
Let us work through a quick example. Suppose your car had a listed selling price of roughly Rs 8,00,000 when new, and it is now two and a half years old. It falls in the 2 to 3 year band, so 30 percent depreciation applies.
| Item | Amount (illustrative) |
|---|---|
| Listed selling price | Rs 8,00,000 |
| Depreciation at 30 percent | Rs 2,40,000 |
| IDV for the year | Rs 5,60,000 |
For cars older than five years, or for models no longer in production, there is no fixed grid. The insurer and the owner mutually agree on the IDV based on the car's condition, so the number becomes more negotiable as the vehicle ages.
Your own-damage premium is calculated as a percentage of the IDV. The logic is straightforward: a higher IDV means the insurer is potentially on the hook for a larger payout, so they charge you a little more to cover that risk.
To see how this plays out, imagine the own-damage rate works out to roughly 3 percent of IDV for a particular car. Here is how the premium shifts:
| Chosen IDV | Premium at roughly 3 percent (illustrative) |
|---|---|
| Rs 5,00,000 | Rs 15,000 |
| Rs 5,60,000 | Rs 16,800 |
| Rs 6,00,000 | Rs 18,000 |
These figures are illustrative only and your actual premium will depend on the insurer, your add-ons, your no-claim bonus, and the city you drive in. The takeaway is the relationship, not the exact rupees: as IDV goes up, the premium goes up in step.
Most insurers let you adjust the IDV within a band, often plus or minus 10 to 15 percent of the calculated value. So you do have some room to nudge it up or down, which is exactly where people get tempted to cut corners.
When you see that a lower IDV trims your premium, it is tempting to pick the smallest number on offer. Resist that urge. The premium you save is small, but the payout you lose can be large.
Say the fair IDV for your car is roughly Rs 5,60,000, but you set it at Rs 4,80,000 to save a little on premium. You might save a few hundred to a couple of thousand rupees that year. But if your car is stolen the following month, the insurer settles the total-loss claim at Rs 4,80,000, not the true market value. You have just handed away roughly Rs 80,000 to save a fraction of that.
There is a second, quieter problem. Even for partial-damage claims, an artificially low IDV can affect how repairs and replacements are valued, and in some disputes it can complicate the settlement. Underinsuring your car to save on premium is almost always a poor trade.
On the flip side, setting an IDV far above the fair market value does not help either. The insurer will still only pay the genuine value of the car at the time of loss, so you would simply be overpaying premium for a payout you will never actually receive. The right move is to keep the IDV close to the real, current value of your vehicle.
IDV is not a one-time number. It is recalculated every year at renewal because your car keeps depreciating. A car worth roughly Rs 5,60,000 this year might be valued closer to Rs 4,80,000 next year, simply because it has aged into a higher depreciation band.
Here is a rough year-on-year picture for a car that started with a listed price of around Rs 8,00,000:
| Renewal year | Age band | Approximate IDV |
|---|---|---|
| Year 1 | 6 months to 1 year | Rs 6,80,000 |
| Year 2 | 1 to 2 years | Rs 6,40,000 |
| Year 3 | 2 to 3 years | Rs 5,60,000 |
| Year 4 | 3 to 4 years | Rs 4,80,000 |
| Year 5 | 4 to 5 years | Rs 4,00,000 |
This steady decline is normal and expected. It also means your own-damage premium tends to ease a little each year as the IDV falls, even before factoring in your no-claim bonus. After five years, as mentioned, the number becomes a matter of agreement between you and the insurer, based on the condition of the car, its service history, and the going rate for similar used vehicles.
A little attention at renewal time protects you when a claim actually happens. Keep these pointers in mind:
If you would like a second pair of eyes on your renewal, Assurmate advisors can help you compare comprehensive plans across insurers and make sure your IDV is set fairly before you pay.
Assurmate's advisors compare plans across 15+ insurers — free and unbiased — and support you all the way to the claim cheque.
Assurmate Editorial Team
Written and reviewed by Assurmate's licensed insurance advisors. We translate the fine print so you can decide with clarity — and we're on your side at claim time.
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