Car Insurance Renewal: IDV, Zero Depreciation and Which Add-Ons Are Worth It

Car insurance renewal is the one annual decision most owners make in under two minutes. A reminder arrives, the renew button is there, the amount looks similar to last year, and it's done. The policy only gets read properly after something has already happened to the car, which is the worst possible time to discover what it says.

Three things in that document decide whether a claim leaves you out of pocket: the insured value, whether you bought zero depreciation, and which add-ons you're paying for. This guide puts a number against each one so you can renew in ten minutes instead of two and know exactly what you've bought.

The Short Answer

Set your insured value close to what the car is actually worth rather than reducing it to cut the premium, because that figure is what you receive if the car is stolen or written off. Buy zero depreciation while the car is under five years old: without it, plastic parts are settled at half price and paint at half price, so an ordinary ₹36,000 front-end repair can leave you paying about ₹13,900 of it yourself. Of the other add-ons, engine protection earns its place if you live where roads flood, consumables cover is cheap and useful, and return to invoice only matters in the first two or three years. Avoid making small claims: at full no-claim bonus, claiming for a repair under roughly ₹12,000 usually costs you more over the next three years than it pays today.

What Is IDV, and Why Lowering It Is a Bad Idea

Insured Declared Value is the maximum your insurer will pay if the car is stolen or damaged beyond economical repair. It isn't a repair limit for ordinary claims. It's the figure you receive when the car itself is gone.

IDV starts from the manufacturer's listed price for your exact variant and subtracts a fixed depreciation for the car's age. Registration and insurance costs are excluded, so IDV is calculated on the ex-showroom price and not on what you paid on the road. Here's the schedule and what it looks like on a car that cost ₹10 lakh ex-showroom.

Past five years there is no fixed schedule. The value is agreed between you and the insurer, usually on a dealer or surveyor assessment of the car's actual condition, which is when an honest service record starts paying you back.

Here's where owners lose money. Renewal portals let you slide the IDV down, and the premium falls when you do, because the own-damage premium is a percentage of the insured value. Shave the IDV by ₹1 lakh to save a few hundred rupees, and the day the car is stolen you are short by that same ₹1 lakh. The saving is small and certain, the loss is large and possible, which is the wrong way round. The opposite mistake is rarer but real: pushing the IDV as high as the portal allows raises your premium, and the figure still has to hold up when a claim is assessed. Aim for accurate, not maximum.

One distinction that trips people up: IDV is not the same thing as resale value. Resale value is what a buyer would actually hand you for your specific car with its specific history. IDV is a valuation arrived at through the insurer's method, starting from the listed price and the age schedule. The two are usually in the same neighbourhood, and condition, mileage, variant and local demand can push them apart. Use resale value as a sanity check on the IDV, not as the number you expect the insurer to accept.

My advice: at every renewal, check the IDV the portal has pre-filled, compare it against what your car would really fetch today, and raise it if it looks low. If you're buying a used car, note that IDV follows the car's age, which is one more reason the manufacturing date matters as much as the registration date.

Zero Depreciation: What It Actually Saves You

This is the single most valuable add-on for a car under five years old, and the easiest to explain with a bill rather than a definition.

In a normal claim the insurer doesn't pay the full price of a replaced part. It deducts depreciation first, and the deductions are steep:

• Rubber, nylon and plastic parts, tyres, tubes, batteries and airbags: 50 percent deducted, whatever the car's age.
• Paint material and consumables: 50 percent deducted.
• Fibreglass components: 30 percent deducted.
• Glass, including the windscreen: Nothing deducted.
• Metal parts: Deducted by age, from nothing in the first six months to 15 percent in the third year and 40 percent between four and five years.

Most of a modern car's exterior is plastic, which is why that first line matters so much. Take a front-end repair on a hatchback in its third year, total bill ₹36,000. This is an illustration using the standard deduction rates, and your own bill will differ with the car and the workshop.

Without zero depreciation you hand over about ₹13,900 of a ₹36,000 repair. With it, you pay the ₹1,000 compulsory deductible and walk away. Zero depreciation typically adds 15 to 20 percent to the own-damage part of your premium, which for most private cars works out between ₹1,400 and ₹5,000 a year. One claim like the one above pays for several years of it.

A Real Bill, and the Repair Where Zero Depreciation Barely Helps

The example above is the case zero depreciation is sold on. Here is a real one from the other direction, taken from an authorised dealership tax invoice for an MG Hector that needed its front windscreen replaced. The owner settled it directly rather than through a claim.

Now apply the deduction rules to that bill. Glass is the one category that carries no depreciation at all, so the windscreen would have been settled in full. Labour is never depreciated either. The only line that would have been cut is the adhesive, as a consumable at 50 percent, and consumables are usually handled by their own add-on rather than by zero depreciation.

Which leads somewhere most insurance articles never go. On a windscreen claim, zero depreciation is worth almost nothing, because the expensive part was never going to be depreciated in the first place. The add-on earns its money on bumpers, headlamps, mirrors, cladding and paint. If someone sells you zero depreciation on the strength of a cracked windscreen, they are selling you the wrong product.

The same bill makes a second point about timing. The windscreen on that invoice was taxed at 28 percent, which is what car parts attracted at the time. Parts moved to 18 percent on 22 September 2025, so the identical job today would cost roughly ₹970 less, bringing the bill to about ₹17,800. Labour was and remains 18 percent. Worth knowing if you are comparing a current estimate against an older one, or against what a friend paid two years ago.

And it is a useful test of the claim threshold further down this article. Claiming on that bill would have recovered somewhere around ₹15,400 after the deductible and the adhesive deduction. Against roughly ₹12,600 of lost no-claim bonus over three years, claiming was the better call, though not by the mile most people would assume. That is the arithmetic worth doing every time, rather than claiming reflexively or avoiding it out of habit.

While we're here, one confusion worth clearing up, because it costs people money every year. A comprehensive policy and zero depreciation are not the same thing and one does not include the other. Comprehensive is the base policy, combining third-party liability with cover for your own car. Zero depreciation is an optional add-on bolted onto it that changes how parts are valued in a claim. Buying comprehensive cover does not get you zero depreciation by default, and plenty of owners discover that only when the settlement arrives. Open your policy schedule and look for it by name.

Three conditions before you assume you're covered. Insurers usually cap zero depreciation claims in a policy year, commonly at two. Most offer it only while the car is under five, though several extend to seven. And it does not cover everything: engine damage from water or oil loss needs engine protection, and consumables need their own cover. These limits are insurer-specific, so read yours rather than assuming.

Which Other Add-Ons Are Worth Paying For

Insurers will offer you a long list at renewal, and if the policy came bundled through your dealership it is worth reading alongside what the rest of the add-ons sheet is really worth. Most of it is optional in the real sense of the word.

• Engine protection: Covers damage from water ingress, hydrostatic lock and oil or lubricant loss, none of which a standard policy pays for. Worth it if you live in a city that floods or park where water collects. The most expensive single repair this list protects against.
• Consumables cover: Pays for engine oil, coolant, brake fluid, AC gas, nuts and washers, which are otherwise deducted at 50 percent. Cheap, and it turns up in almost every claim.
• Return to invoice: On theft or total loss, pays the original invoice value including registration and road tax rather than the depreciated IDV. Worth real money in the first two to three years, when the gap between invoice and IDV is widest, and much less so later.
• No-claim bonus protection: Lets you make a claim without losing your accumulated discount. Worth considering once you're at the higher bonus slabs.
• Roadside assistance: Towing, flat tyre, jump start, key lockout. Cheap, and often already included free with a new car for a few years, so check before paying twice.

One rule applies to all of them. An add-on is worth its price when the thing it covers is both expensive and plausible for you. Engine protection in a flood-prone city is both. Tyre cover usually is neither.

No Claim Bonus: Why Small Claims Cost You Money

Every claim-free year earns you a discount on the own-damage part of next year's premium. It does not apply to the third-party portion.

One claim resets that to zero unless you hold the protection add-on. That reset is expensive, and it's the reason a small claim is usually a bad idea.

Work it through. Say your own-damage premium before discount is ₹12,000 and you're at the full 50 percent, so you pay ₹6,000. Make one claim and next year you pay ₹12,000, then ₹9,600, then ₹9,000 as the bonus rebuilds. Across three years that's about ₹12,600 more than if you had stayed at 50 percent. So claiming for a dent that costs ₹8,000 to fix leaves you worse off. Treat roughly ₹12,000 as the line, recalculate it with your own premium, and remember the own-damage premium falls as the car ages, which shifts the figure down a little each year.

Two more things about the bonus that are worth money. It belongs to you, not to the car, so it moves with you when you change insurer or buy a new car, provided you get the certificate from the outgoing insurer. And it dies if you let the policy lapse for more than 90 days, which is the single most expensive clerical mistake an owner can make.

What You Are Actually Paying For

Your premium has two halves that behave very differently, and knowing which is which tells you where you can negotiate.

The third-party portion is fixed by regulation and identical across insurers, priced by engine capacity. As of October 2026 it is ₹2,094 a year for cars up to 1,000 cc, ₹3,416 for 1,000 to 1,500 cc and ₹7,897 above 1,500 cc, before tax. Electric private cars get a 15 percent discount on this and hybrids get 7.5 percent. A revision has been under discussion for some time but has not been notified, so treat these as the position today and check at renewal.

The own-damage portion is where insurers compete. It moves with your IDV, the car's age and location, your no-claim bonus, the add-ons you pick and any voluntary deductible you accept. That last one: a voluntary deductible is an amount you agree to pay on every claim on top of the compulsory one, in exchange for a lower premium. A real saving only if you are confident you will not claim.

It is also the half a lender quietly folds into your loan if you let them, which is one of the questions worth asking before you sign. This is the half worth getting three quotes on, and the comparison only means something if the quotes are like for like. Line them up on the same insured value, the same deductibles and the same add-ons before you look at the price, because a cheaper quote built on a lower IDV is not a cheaper quote. Compare the final payable amount including tax rather than the figure before it.

One thing that catches people out. When GST was restructured in September 2025, individual health and life insurance moved to a zero rate, and plenty of owners assume motor insurance went the same way. It didn't. Car insurance still carries 18 percent GST on the whole premium, so a ₹15,000 policy costs ₹17,700. Budget for it rather than being surprised at checkout.

When Something Does Happen: Getting the Claim Right

Four habits decide how smoothly a claim goes. Photograph the scene before anything is moved, and file a police report for theft or any incident involving injury.

• Tell the insurer before the repair starts: Most policies require intimation within a short window, and a workshop that begins work before the surveyor has seen the car gives the insurer a straightforward reason to reduce the settlement.
• Use a cashless network garage where you can: You pay only your share, the insurer settles the rest directly, and you avoid funding the whole repair and waiting for reimbursement. Check the network list for your city before choosing a workshop.
• Keep every piece of paper together: The estimate, the surveyor's report and the final invoice, alongside the policy. The gap between estimate and settlement is where disputes start, and you can only argue it with documents.

A Ten-Minute Renewal Checklist

1. Check the IDV before anything else: Compare the pre-filled figure against what your car would sell for, and raise it if it is low.
2. Keep zero depreciation while the car is under five: It is the add-on most likely to pay for itself, and availability ends as the car ages.
3. Get three own-damage quotes, not one: The third-party half is identical everywhere, so any real difference between quotes sits in the other half.
4. Renew before the policy expires: A lapse past 90 days wipes out your no-claim bonus, and driving without cover is an offence in any case.
5. Carry your bonus across when you switch: Ask the outgoing insurer for the certificate rather than assuming the new one will fetch it.
6. Read the add-on conditions, not just the names: Claim limits, age limits and exclusions are what decide whether the cover works when you need it.

Conclusion

Insurance sits alongside fuel and servicing in what the car costs you every month. It is the one running cost where paying slightly more each year is often the cheaper decision over the life of the car. A properly set insured value, zero depreciation while the car is young, engine protection if your streets flood, and the discipline not to claim for small dents will between them cost you a few thousand rupees a year and save you considerably more the one time something serious happens.

Before you click renew this year, do just two things: look at the insured value and ask whether you would accept that cheque if the car vanished tonight, and check whether zero depreciation is still on the policy or quietly dropped off at some earlier renewal. Those two checks take five minutes and cover most of what goes wrong.

Thinking about changing the car instead? Book a test drive and we will connect you with your nearest authorised dealer.

FAQs

1. What is IDV in car insurance and should I reduce it?

Insured Declared Value is the maximum amount you receive if the car is stolen or written off. Reducing it lowers your premium slightly but cuts the payout by the same amount, so set it close to what the car is really worth rather than as low as the portal allows.

2. How is IDV calculated?

It is the manufacturer's listed price for your variant minus a fixed depreciation for the car's age: 5 percent under six months, 15 percent up to a year, 20 percent to two years, 30 percent to three, 40 percent to four and 50 percent to five. Past five years it is agreed between you and the insurer.

3. Is zero depreciation cover worth it?

For a car under five years old, usually yes. Without it, plastic parts and paint are settled at half price, so a ₹36,000 front-end repair can leave you paying about ₹13,900. The add-on typically costs between ₹1,400 and ₹5,000 a year, so one claim covers several years of it.

4. Is comprehensive insurance the same as zero depreciation?

No. Comprehensive is the base policy, covering third-party liability and damage to your own car. Zero depreciation is an optional add-on attached to it that waives depreciation deductions on eligible parts. Buying comprehensive cover does not include zero depreciation, so check your policy schedule for it by name.

5. How much is the compulsory deductible on a car insurance claim?

₹1,000 for cars below 1500 cc and ₹2,000 for cars above 1500 cc. You pay this on every own-damage claim regardless of which add-ons you hold.

6. Should I claim for small damage on my car?

Usually not. One claim resets your no-claim bonus to zero unless you hold bonus protection. At the full 50 percent discount on a ₹12,000 own-damage premium, that reset costs about ₹12,600 over the next three years, so claims smaller than that typically leave you worse off.

7. Does my no claim bonus transfer to a new car or a new insurer?

Yes. The bonus belongs to you rather than the vehicle, so it moves to a new car or a new insurer if you obtain the certificate from your outgoing insurer. It is lost if you let the policy lapse for more than 90 days.

8. How much GST is charged on car insurance in 2026?

18 percent on the whole premium. Individual health and life insurance moved to a zero rate when GST was restructured in September 2025, but motor insurance was not included, so a ₹15,000 policy costs ₹17,700.