IDV in car insurance: the one number that decides your theft and total-loss payout

Your car is stolen on a Tuesday. You file the claim expecting roughly what the car is worth, and the insurer pays ₹1.5 lakh less. No loophole, no appeal. They're simply paying out a number you approved, without reading it, at your last renewal.

That number is your IDV, and most people rubber-stamp it while comparing premiums. Set it too low and you quietly cap your own payout; too high and you pay every year for money you can never collect. Either way, the mistake surfaces the day you file a claim. So let's cover what IDV is, how it's calculated, and how to check yours, in two minutes.

What IDV actually is

IDV stands for Insured Declared Value. It's the maximum your insurer will pay if your car is stolen or damaged beyond economical repair (a "total loss"). For your car, IDV is your sum insured: under the India Motor Tariff (GR-8), the IDV "shall be deemed to be the sum insured."

It is not your car's resale or market price, and not the ex-showroom price you paid. It's the manufacturer's current listed price for your exact model, minus a fixed, standardised depreciation based on the car's age. That schedule isn't left to each insurer's mood.

How IDV is calculated: the fixed depreciation grid

IDV = your model's current listed price minus a standardised depreciation for its age. Here's the schedule (India Motor Tariff):

Age of vehicle	Depreciation for fixing IDV
Up to 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%
Over 5 years / discontinued model	No fixed rate, agreed between you and the insurer

So a new car insures at roughly 95% of listed price; a four-to-five-year-old at about 50%. Past five years there's no fixed grid, so value is negotiated. That's exactly where insurers have the most room to quote low and you have the most room to push back.

Why a wrong IDV costs you, in both directions

Too low: the trap that looks like a saving

Your own-damage premium is a percentage of IDV, so a lower IDV means a lower premium. That's why an agent or quote screen may nudge it down. It looks like a saving. But IDV is the cap on your theft or total-loss payout. Under-state it, and if the car is stolen or totalled you're paid the low IDV you agreed to, not what it costs to replace the car.

For example: a fair IDV of ₹6,00,000, set instead at ₹4,50,000 to trim the premium, saves you a few thousand a year. But if the car is stolen you're paid ₹4,50,000, a ₹1,50,000 gap that dwarfs the saving. (Illustrative figures; yours depend on your model and insurer.)

Too high: paying for money you can't claim

Some buyers inflate IDV expecting a bigger payout. You'll pay a higher premium, but at claim time you can't extract more than the car's genuine value, so you've overpaid for a number you can never collect.

The honest position: a slightly lower IDV for a lower premium is a valid choice, if you knowingly accept the smaller payout. The problem is when it happens by default, without you realising what you traded away.

The "75% rule" most people miss

Your car doesn't have to be physically destroyed to count as a total loss. Under the tariff, it's a Constructive Total Loss (CTL) when retrieval and repair cross 75% of the IDV.

This is where a low IDV cuts twice: it makes CTL trigger more easily (75% of a smaller number is a smaller repair bill), and then pays out only that smaller IDV before the policy ends. Under-setting IDV doesn't just shrink the cheque, it brings the write-off sooner.

IDV isn't the same as depreciation on repairs

Don't confuse the two. IDV depreciation (the grid above) is the whole-car cap for total loss and theft. A separate parts-depreciation applies to normal repair claims, for example 50% on rubber, plastic, tyres and batteries, and nil on glass. That second one is what a zero-depreciation add-on waives. Different levers entirely.

How to check your own IDV before you renew

A two-minute check before you click pay:

1. Find the IDV on your policy schedule, usually near the premium breakup.
2. Sanity-check it against the grid. Take your model's current listed price, subtract the age-based depreciation above, and see whether your IDV sits in that band, or suspiciously below it.
3. For a 5+ year car, get two or three quotes. There's no fixed grid past five years, so insurers vary widely. Don't accept the first low IDV.
4. Decide on purpose. A lower premium for a smaller theft payout is fine if you choose it knowingly, not by accident.

Rather not eyeball it line by line? FinDecode reads your motor policy against IRDAI rules and flags whether your IDV, deductible, NCB and add-ons line up. Every figure comes from your own document, nothing invented. Decode your motor policy → · See how we check our work →.

FAQ

What is IDV in simple terms? It's the most your insurer will pay if your car is stolen or written off. For your car, IDV is the sum insured.

Is a higher or lower IDV better? Neither by default. A lower IDV means a lower premium but a smaller theft/total-loss payout; a higher IDV means a higher premium but you still can't claim more than the car is genuinely worth. It's a trade-off you should make deliberately.

Can I choose my own IDV? Insurers typically let you set IDV within a small range around the computed value. Beyond five years, where there's no fixed depreciation grid, it's negotiated between you and the insurer.

Does IDV affect my premium? Yes. Own-damage premium is calculated as a percentage of IDV, so a lower IDV lowers your premium, and lowers your payout at total loss.

What happens to IDV after five years? There's no fixed depreciation rate. The value is agreed between you and the insurer, so it pays to compare a few quotes rather than accept the first.

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FinDecode provides AI-assisted analysis to help you understand your policy. It is not legal or financial advice. Sources: Insured's Declared Value, the age-wise depreciation schedule, the 75%-of-IDV Constructive Total Loss threshold, and the parts-depreciation rates are all set out in the India Motor Tariff (GR-8), published on irdai.gov.in. Third-party insurance is mandatory under Section 146, Motor Vehicles Act, 1988.