How much IDV do I need for my car?
Set your car's IDV close to its current depreciated showroom price, not the lowest band offered. For a 1 to 2 year old car, that means about 80 percent of the original ex-showroom price plus accessories.
Set your car's IDV close to its current showroom-minus-depreciation price, not at the bottom of the band the insurer offers. For a one-year-old hatchback that cost 7 lakh rupees on road, that means an IDV in the 5.6 to 6.1 lakh rupees range, not the 4.5 lakh the agent may suggest. The number you choose decides what you receive if the car is stolen or written off. General insurance for a motor policy is built around this single line on the policy schedule.
This article shows you the exact math, the depreciation table the regulator uses, and a quick projection so you can spot a fair quote at first glance.
What IDV actually means in plain words
IDV stands for Insured Declared Value. It is the maximum amount your insurer will pay if your car is stolen and not recovered, or damaged beyond repair. In motor insurance language, this is called a total loss claim or constructive total loss.
For partial damage, the insurer pays for repairs after subtracting depreciation on parts and your fixed deductible. The IDV does not cap those payments directly, but a low IDV usually goes hand in hand with a lower premium, so smaller payouts in partial loss cases too.
The depreciation table that decides your number
The Insurance Regulatory and Development Authority of India publishes a standard depreciation grid for motor IDV calculations. Insurers can deviate by a small margin, but most stick close to it.
| Vehicle age | Depreciation on showroom price | Approx IDV factor |
|---|---|---|
| Up to 6 months | 5% | 0.95 |
| 6 months to 1 year | 15% | 0.85 |
| 1 to 2 years | 20% | 0.80 |
| 2 to 3 years | 30% | 0.70 |
| 3 to 4 years | 40% | 0.60 |
| 4 to 5 years | 50% | 0.50 |
| Over 5 years | Mutually agreed | 0.40 to 0.50 |
For cars older than five years, the IDV is mutually agreed between you and the insurer. This is where you must push back. Some insurers quietly drop the IDV to bring down the premium without telling you the impact on a future claim.
How to calculate the IDV you actually need
The simple formula is: IDV equals showroom price plus accessories, multiplied by the age factor in the table above, with road tax and registration fees excluded. Add the value of any factory or aftermarket accessories that are insured.
Take an example. Your car had an ex-showroom price of 8 lakh rupees. It is now 22 months old. The depreciation factor for 1 to 2 years is 0.80. Your fair IDV is 8 lakh times 0.80, equal to 6.4 lakh rupees, plus the value of insured accessories such as a music system or alloy wheels.
If the agent's quote shows 5 lakh, ask why. There may be a real reason like a high-claim history or a regional adjustment, but you deserve a number you understand and accept.
Why a higher IDV is usually the smarter pick
Three reasons make the higher legal IDV a better choice for most drivers.
- Better total loss payout. If your car is stolen or completely written off, the insurer pays the IDV, not the market value at the moment of loss.
- Cleaner claim experience. A fairly priced policy is less likely to lead to a fight at claim time, since the insurer has already accepted a higher exposure upfront.
- Better resale negotiation later. A higher IDV can act as a soft anchor when you negotiate the resale price of the same car a year or two later.
The trade-off is a slightly higher premium. The premium impact of moving from a low IDV quote to a fair IDV quote is usually a few hundred to a couple of thousand rupees a year, far less than the gap you would face on a total loss claim.
Common mistakes that cost claim money
Two errors cause real pain at claim time. The first is accepting a low IDV just to save 700 or 800 rupees on the annual premium. The discount looks attractive when nothing has gone wrong. After a theft, the gap between actual market value and the low IDV is paid by you.
The second error is forgetting to update the IDV every year at renewal. Cars depreciate. The right IDV next year is lower than this year. Insurers usually reduce it for you, but cross-check the new number to make sure the cut matches the depreciation table, not a deeper number designed to lower your premium artificially.
For the standard rules and fair value tables, the IRDAI portal has detailed circulars and consumer guides that you can quote back to the agent if needed.
Frequently asked questions on IDV and motor general insurance
Can I increase my IDV beyond the standard depreciation table?
Some insurers allow a small upward adjustment, especially for cars in mint condition with low mileage. Expect a higher premium and a documentation step. The flexibility is biggest for cars between three and five years of age.
Is a low IDV worth it for older cars?
Only if the saving on the annual premium is meaningful and you are willing to accept a smaller payout on total loss. For a six-year-old budget hatchback driven mostly in low-risk areas, a slightly lower IDV may be acceptable.
Does IDV affect third-party cover?
No. Third-party liability cover is fixed by regulation and not linked to your IDV. The IDV only matters for the own-damage portion of a comprehensive motor policy.
Can I change my IDV mid-policy?
Usually not. The IDV is locked at the start of the policy term. The right time to revise the number is at renewal, when both you and the insurer recalculate it for the next year.
Frequently Asked Questions
- What is IDV in motor insurance?
- IDV stands for Insured Declared Value. It is the maximum amount your insurer pays if the car is stolen or declared a total loss. The number is set at policy start and based on the depreciation table.
- How is the IDV calculated?
- Take the ex-showroom price, add the value of insured accessories, and multiply by the depreciation factor for the car's age. The IRDAI publishes the standard factors, ranging from 0.95 in the first six months to about 0.50 by year five.
- Should I always pick the highest possible IDV?
- Picking a fair IDV close to the actual depreciated value is usually the smartest move. A very low IDV saves a small premium today but creates a big gap on a total loss claim later.
- Can the insurer reduce my IDV without telling me?
- The insurer must show the IDV clearly on the policy schedule. They cannot quietly cut it. If a renewal shows a sharp drop unmatched by the depreciation table, ask for a written explanation before you pay.