Indian car owners often discover an unpleasant truth only after their first major insurance claim. The settlement amount feels far smaller than expected. The repair bill says ₹1.2 lakh. The insurance company approves ₹70,000. The rest comes out of your own pocket.
The culprit behind this gap is a quiet but powerful clause called depreciation on parts. For a 5-year-old car, the impact is severe — sometimes cutting your claim by 40% to 50%, especially on plastic and rubber components.
Here is how this works, why it exists, and how to protect yourself.
What Depreciation Means in Car Insurance
Depreciation is the loss of value of your car and its parts due to age and usage. Insurance companies use depreciation to decide how much of a damaged part they will actually pay for during a claim.
The logic is simple. If a 5-year-old bumper is damaged, the insurer argues you cannot expect to receive the full price of a brand-new bumper. After all, your old bumper had already lost value over the years.
So they apply a depreciation percentage based on:
- The age of the car
- The material of the part
- Whether the part is replaced or repaired
How the IRDAI Depreciation Slab Works
The Insurance Regulatory and Development Authority of India (IRDAI) sets standard depreciation rates that all insurers must follow.
For Metal Parts
- Up to 6 months old: 0%
- 6 months to 1 year: 5%
- 1 to 2 years: 10%
- 2 to 3 years: 15%
- 3 to 4 years: 25%
- 4 to 5 years: 35%
- Above 5 years: 40%
For Plastic, Rubber, and Fibre Parts
A flat 50% depreciation applies, regardless of age.
For Glass Parts
No depreciation. Glass is reimbursed at full value.
For Tyres, Tubes, and Batteries
A flat 50% depreciation applies to these too.
This is why your 5-year-old car claim can lose nearly half its value on plastic-heavy damages.
Why Plastic Parts Hurt the Most
Modern cars use far more plastic than older models. Bumpers, dashboards, side mirror housings, door trims, headlight covers, fender liners, grilles, and many engine bay parts are all made of plastic or composite material.
When a car meets with an accident, the most commonly damaged parts include:
- Front and rear bumpers (plastic)
- Headlight assemblies (plastic body, glass lens)
- Side view mirror housings (plastic)
- Grille and badges (plastic)
- Wheel arches and underbody covers (plastic)
All of these are hit with the flat 50% depreciation rule. Even if the part is replaced brand new, the insurer pays only half.
A Real Example of the Settlement Gap
Take a 5-year-old hatchback that meets with a moderate front-end accident.
Repair Bill Breakdown
- Front bumper replacement: ₹18,000 (plastic)
- Headlight assembly: ₹22,000 (plastic body)
- Bonnet replacement: ₹15,000 (metal)
- Radiator support: ₹12,000 (metal)
- Labour and painting: ₹20,000
- Total bill: ₹87,000
Insurance Calculation
- Bumper: 50% depreciation = ₹9,000 paid, ₹9,000 from your pocket
- Headlight: 50% depreciation = ₹11,000 paid, ₹11,000 from your pocket
- Bonnet (5 years): 40% depreciation = ₹9,000 paid, ₹6,000 from your pocket
- Radiator support: 40% depreciation = ₹7,200 paid, ₹4,800 from your pocket
- Labour: paid in full
- Total insurer payout: about ₹56,200
You pay approximately ₹30,800 from your savings — for a claim you assumed would be fully covered.
Why Insurance Companies Insist on This System
The reasoning, from the insurer’s side, is consistent.
- Cars and their parts lose value over time, like any other asset
- Paying full new-part value would essentially upgrade your car at the insurer’s cost
- Plastic and rubber parts degrade faster than metal, justifying higher depreciation
- Without depreciation, premium costs would rise significantly across the industry
While the math is fair from a business standpoint, most policyholders feel blindsided because they were never clearly told.
How to Avoid the 50% Plastic Parts Hit
The solution is simple, well known to insurance professionals, and quietly under-promoted at policy sale — the Zero Depreciation Add-On, also called Nil Dep Cover or Bumper-to-Bumper Cover.
How Zero Dep Works
When you have this add-on, the insurer ignores depreciation entirely during claim settlement. Every part is paid at its full replacement value, including plastic, rubber, fibre, and metal.
The Premium Cost
Zero Dep typically adds 15% to 20% to your annual premium. For a car with a ₹15,000 base premium, this means an additional ₹2,500 to ₹3,000 per year.
In return, a single major claim recovers the entire add-on cost multiple times over.
Eligibility Rules
Most insurers allow Zero Dep cover for cars up to 5 years old at the time of purchase. Some premium plans extend it up to 7 years.
If your car is approaching the cut-off, this is the moment to add Zero Dep before the option disappears.
Other Useful Add-Ons That Pair Well With Zero Dep
A well-built motor insurance policy goes beyond just Zero Dep.
1. Engine Protection Cover
Standard policies do not cover engine damage caused by water entry or oil leakage. This add-on fills a critical gap.
2. Return to Invoice (RTI)
In case of total loss or theft, the insurer pays the full invoice value of your car, not just the depreciated IDV. Best for cars under 3 years old.
3. Roadside Assistance Cover
Covers towing, fuel delivery, flat tyre help, and battery jump-starts. Useful for long-distance drivers.
4. Consumables Cover
Pays for engine oil, coolant, nuts and bolts, and other consumables replaced during repair. These small items add up quickly.
5. Key Replacement Cover
Modern car keys with electronic chips can cost ₹10,000 to ₹40,000 to replace.
Combining Zero Dep with these add-ons gives close to true bumper-to-bumper protection.
What to Do at Claim Time
A few practical steps reduce settlement disappointment.
1. Always Choose Cashless Repair
Cashless centres process the claim through the insurer directly, leaving you to pay only the depreciation and excess amounts. You avoid front-loading the entire repair cost.
2. Ask for the Itemised Estimate Upfront
Before authorising repairs, ask the workshop for a detailed estimate. Identify which parts are plastic, rubber, or metal so you know your likely out-of-pocket cost.
3. Verify Replaced Parts
Some workshops bill new parts but install refurbished or local alternatives. Insist on seeing the damaged parts and matching the bills.
4. Negotiate the Compulsory Deductible
Every motor policy has a compulsory deductible. Knowing this number prevents surprises at discharge.
5. Track Claim History for NCB Impact
Multiple small claims can reduce your No Claim Bonus on renewal. For small damages, paying out of pocket sometimes makes more long-term sense.
Common Mistakes Car Owners Make
- Buying basic policies without checking depreciation impact
- Assuming “comprehensive” insurance means 100% bill coverage
- Missing the Zero Dep add-on because the agent did not mention it
- Continuing the same policy beyond 5 years without reviewing add-ons
- Not comparing insurers at renewal time
A 10-minute review at renewal can save thousands during a claim.
Final Thoughts
Motor insurance in India is not as complicated as it seems, but it is also not as forgiving as most buyers assume. The depreciation rules are clear, public, and uniformly applied — yet most car owners discover them only after an accident. Plastic parts, in particular, take the biggest hit and quietly drain your savings.
The fix is straightforward. Buy a Zero Depreciation add-on while your car still qualifies. Pair it with engine protection, consumables cover, and roadside assistance. Renew with the same care you took during the original purchase.
A car protects you on the road. A well-structured insurance policy protects you when the road does not return the favour. Spend a little more on the policy today, and the next accident will feel like an inconvenience, not a financial setback.
FAQs
Q. Is depreciation applied to labour charges?
A: No. Labour and painting costs are paid in full.
Q. Does Zero Depreciation apply on every claim?
A: Most insurers limit it to 2 claims per policy year. Beyond that, normal depreciation rules apply.
Q. Can I buy Zero Dep after the policy starts?
A: No. Add-ons must be selected at policy purchase or renewal.
Q. Is Zero Dep available for commercial vehicles?
A: Limited insurers offer it for commercial use. Always check before assuming coverage.
Q. Does Zero Dep cover engine damage?
A: No. Engine damage requires a separate Engine Protection Cover.
Q. Will my premium rise after a Zero Dep claim?
A: It may slightly increase due to loss of NCB at renewal.
Q. Is Zero Dep worth it for very old cars?
A: Most insurers stop offering it after 5 to 7 years, so the option may not be available at all.
