What Is IDV in Car Insurance, and How Much Should Yours Be?

IDV is the one number on your policy that people ignore until the worst day of their car's life. If your car is stolen, or smashed so badly that repairing it doesn't make sense, the IDV is roughly what the insurer pays you. Not what you paid in the showroom, not what a used-car dealer would give you. The IDV.

I'm saying this first because many renewal quotes look cheaper only because the IDV has been quietly reduced. You save ₹500 on the premium, and if the car is stolen next month you lose ₹50,000 or more on the payout. So before you compare prices, compare IDVs.

What does IDV actually mean?

IDV stands for Insured Declared Value. It is the value you and the insurer agree your car is worth for this policy year. It does two jobs:

1. It is the maximum payout if the car is stolen and not found, or declared a total loss.
2. It drives your own-damage premium, which is a percentage of the IDV.

It has nothing to do with smaller claims. If your bumper is damaged, the payout depends on the repair bill, not the IDV.

How is IDV calculated?

The formula is simple:

IDV = current ex-showroom price of your model − depreciation for the car's age

Accessories fitted after purchase, like alloy wheels or a music system, are added on top after the same depreciation. Registration charges, road tax and insurance are never part of IDV.

The depreciation is fixed by age for the first five years:

Age is counted from the date of first registration on your RC to the start date of the new policy. Put your own dates into the IDV calculator and it tells you which band you fall into.

Why is my IDV higher than last year even though my car is older?

Because IDV uses the current ex-showroom price, not the price you paid. If the manufacturer has raised prices by 8% since you bought the car, your IDV gets a boost that can cancel out a year of depreciation. That is normal and not a mistake. It also means your own-damage premium may not fall as much as you expect.

Why is my IDV so much lower than what I paid for the car?

Three reasons, and they add up:

• The on-road price included registration, road tax and insurance. IDV leaves all of those out.
• Even a brand-new car loses 5% in the first six months.
• Discounts you got at the dealership don't matter. IDV uses the list price.

So a car that cost ₹9 lakh on the road might have an IDV of ₹7.5 lakh in its first year. If that gap worries you, a return to invoice add-on covers it for theft or total loss. More on that below.

Should I choose a higher or lower IDV?

Insurers can usually set the IDV within a band around the calculated figure. Here is how I'd decide:

• Don't go lower to save money. The saving is a few hundred rupees a year. The risk, if the car is stolen or written off, is lakhs. Some insurers also look hard at claims where the IDV was set unusually low.
• Go slightly higher if your model holds its value well in the used market, or you live in a high-theft area. The extra premium is small.
• Stay close to the calculated value in every other case. That is the honest number, and it is the one least likely to cause a dispute.

Does a higher IDV mean a bigger claim payout?

Only for theft and total loss. For everyday damage, like a dented door or a broken headlamp, the insurer pays the repair bill minus depreciation and deductibles, whatever your IDV is. Paying for a higher IDV doesn't make a bumper claim pay more. People often confuse these two, so it's worth knowing.

What happens if the car is written off?

If the repair cost is more than 75% of the IDV, the insurer usually treats the car as a constructive total loss. Instead of repairing it, they pay you the IDV, less the deductible. If you keep the wreck, its salvage value is also deducted.

This is exactly where a low IDV hurts. Say your IDV was cut from ₹6 lakh to ₹5 lakh. A ₹4 lakh repair is now 80% of the IDV, so the car becomes a write-off and you get ₹5 lakh, when you may have wanted it repaired. At ₹6 lakh IDV, the same repair would have been only 67% and the car would have been fixed.

How is IDV decided for a car older than five years?

The table stops at five years. After that, there is no fixed formula. The insurer proposes a value based on used-car prices for your model, its condition and sometimes an inspection. You can disagree. Check prices of similar cars on used-car sites, and if the insurer's figure is far lower, ask for it to be raised with that evidence.

For a well-kept seven-year-old hatchback, 35% to 45% of the original ex-showroom price is a common range, but it varies a lot by model.

What if my car model is discontinued?

The insurer uses the last known ex-showroom price of that variant, or a value agreed with you. If the figure looks unfair, the same advice applies: show them what similar cars are selling for.

Does IDV change if I switch insurers?

It can. India doesn't have formal motor insurance portability, so when you move to a new insurer you are buying a fresh policy, and the new company sets its own IDV within the allowed band. Your NCB moves with you, but always check that the new IDV is close to the old one before paying.

What is return to invoice, and do I need it?

Return to invoice (RTI) is an add-on that pays the gap between the IDV and your car's full on-road invoice value if the car is stolen or written off. That includes registration and road tax.

It makes sense for new and nearly new cars, usually up to three years old, especially in high-theft cities. For an older car, the gap it covers isn't worth the extra premium. Our add-ons guide covers it alongside the others.

Does IDV affect my third-party premium?

No. The third-party premium depends only on engine size (or motor power for an EV) and is fixed by notification. IDV changes only the own-damage part. So raising your IDV a little costs less than people expect, because only one part of the premium moves.

How do I check whether the IDV on my quote is fair?

1. Find the current ex-showroom price of your exact variant on the maker's website.
2. Enter it with your registration date in the IDV calculator.
3. Compare the result with the IDV on your quote.

If the quote is more than about 10% below the calculated value, ask why before you pay. A quick call or email usually gets it corrected, and it is far easier to fix now than after a theft.