Without Zero Dep, Your Insurer Keeps 30-50% of Every Part Replacement. Here Is the Exact Math.
Your car insurance says “comprehensive.” You assume full coverage. Then you file a claim for a ₹15,000 bumper replacement and the insurer pays ₹6,500. The remaining ₹8,500? Depreciation deduction — perfectly legal, clearly stated in your policy, and almost nobody reads it before the first claim.
Zero depreciation add-on eliminates this deduction. It costs ₹900-5,000 per year depending on your car. One bumper claim recovers 2-5 years of that premium. But it has age limits, claim caps, garage restrictions, and scenarios where it actually costs you money.
This page covers the real math — part-wise depreciation rates, insurer-by-insurer comparison, claim examples with exact rupee amounts, and the NCB trap that makes small zero dep claims a net loss.
The Depreciation Deduction: What Your Insurer Keeps From Every Claim
Every time you file a claim on a standard comprehensive policy, the insurer deducts depreciation on replacement parts before paying. This is not a scam — it is IRDAI-mandated policy wording. But most people discover it only at claim time.
Part-Wise Depreciation Rates (IRDAI Standard)
| Part Category | Depreciation Deducted | ₹10,000 Part → You Get |
|---|---|---|
| Rubber, nylon, plastic (bumpers, trims, covers) | 50% | ₹5,000 |
| Tyres and tubes | 50% | ₹5,000 |
| Batteries | 50% | ₹5,000 |
| Airbags | 50% | ₹5,000 |
| Fibre glass components | 30% | ₹7,000 |
| Glass (windshield, windows) | 0% | ₹10,000 |
| Paint (material portion = 25% of paint bill) | 50% on material | ~₹8,750 |
Age-Wise Depreciation on Metal/Body Parts
| Vehicle Age | Depreciation on Metal Parts | ₹50,000 Panel → You Get |
|---|---|---|
| Under 6 months | 0% | ₹50,000 |
| 6 months - 1 year | 5% | ₹47,500 |
| 1-2 years | 10% | ₹45,000 |
| 2-3 years | 15% | ₹42,500 |
| 3-4 years | 25% | ₹37,500 |
| 4-5 years | 35% | ₹32,500 |
| 5-10 years | 40% | ₹30,000 |
| Over 10 years | 50% | ₹25,000 |
The plastic problem: Modern cars use significantly more plastic than older designs. Bumpers, fenders, grille, headlamp housings, door trims, mirror casings — all plastic. On a typical fender-bender claim, 60-70% of replacement parts by cost are plastic or rubber. That means 50% depreciation on the majority of your claim.
What Zero Dep Actually Does (and Does Not Do)
Does: Removes the depreciation deduction on replacement parts. Insurer pays full part cost.
Does NOT:
- Waive the compulsory deductible (₹1,000 for <1,500cc, ₹2,000 for ≥1,500cc) — this always applies
- Waive any voluntary deductible you opted for
- Cover wear and tear, mechanical breakdown, or engine damage from water
- Apply to total loss or theft (that is IDV-based payout)
Real Claim Math: With vs Without Zero Dep
Claim 1: Bumper Replacement (Plastic Part)
| Without Zero Dep | With Zero Dep | |
|---|---|---|
| Repair bill | ₹7,000 | ₹7,000 |
| Depreciation (50% on plastic) | -₹3,500 | ₹0 |
| Compulsory deductible | -₹1,000 | -₹1,000 |
| Insurer pays | ₹2,500 | ₹6,000 |
| You pay from pocket | ₹4,500 | ₹1,000 |
| Zero dep saves you | ₹3,500 |
Claim 2: Major Accident — Hyundai Creta
| Without Zero Dep | With Zero Dep | |
|---|---|---|
| Total repair bill | ₹1,80,000 | ₹1,80,000 |
| Depreciation deducted | -₹45,000 | ₹0 |
| Compulsory deductible (≥1,500cc) | -₹2,000 | -₹2,000 |
| Insurer pays | ₹1,33,000 | ₹1,78,000 |
| You pay from pocket | ₹47,000 | ₹2,000 |
| Zero dep saves you | ₹45,000 |
Claim 3: Fibre Glass Component Repair
| Without Zero Dep | With Zero Dep | |
|---|---|---|
| Repair bill | ₹20,000 | ₹20,000 |
| Depreciation (30% on fibre) | -₹6,000 | ₹0 |
| Compulsory deductible | -₹1,000 | -₹1,000 |
| Insurer pays | ₹13,000 | ₹19,000 |
| Zero dep saves you | ₹6,000 |
Claim 4: Windshield Replacement (Glass)
| Without Zero Dep | With Zero Dep | |
|---|---|---|
| Repair bill | ₹10,000 | ₹10,000 |
| Depreciation (0% on glass) | ₹0 | ₹0 |
| Compulsory deductible | -₹1,000 | -₹1,000 |
| Insurer pays | ₹9,000 | ₹9,000 |
| Zero dep saves you | ₹0 |
Glass already has 0% depreciation. Zero dep adds nothing for glass-only claims.
Zero Dep Add-On Cost by Car Segment (2026)
| Car Model | Segment | IDV (Approx) | Comprehensive Premium | With Zero Dep | Extra Cost |
|---|---|---|---|---|---|
| Maruti Swift | Hatchback | ₹6 lakh | ₹5,200 | ₹6,100 | ₹900 |
| Tata Nexon | Compact SUV | ₹12 lakh | ₹7,800 | ₹9,500 | ₹1,700 |
| Honda City | Sedan | ₹11 lakh | ₹7,800 | ₹9,200 | ₹1,400 |
| Maruti Brezza | Compact SUV | ₹13 lakh | ₹9,100 | ₹10,900 | ₹1,800 |
| Hyundai Creta | Mid SUV | ₹16 lakh | ₹11,500 | ₹13,900 | ₹2,400 |
| Toyota Fortuner | Premium SUV | ₹35 lakh | ₹22,000 | ₹27,000 | ₹5,000 |
Cost as % of OD premium by car age:
| Car Age | Zero Dep Premium Loading |
|---|---|
| Under 3 years | 12-15% extra |
| 3-5 years | 18-25% extra |
| Over 5 years | 30%+ extra (if available) |
One bumper replacement on a Creta (₹2,400 zero dep cost, ₹45,000 savings) = 18.75x return on investment.
Insurer Comparison: Claim Limits, Age Caps, and Garage Rules
Claims Allowed Per Year
| Insurer | Zero Dep Claims/Year | Key Condition |
|---|---|---|
| HDFC Ergo | Unlimited | No cap on number of claims |
| ICICI Lombard | Unlimited | No cap on number of claims |
| Bajaj Allianz | 2 claims | 3rd claim gets standard depreciation |
| Tata AIG | 2 claims | Must use Tata AIG network garage |
| New India Assurance | 2 claims | Strictest age limit (34 months) |
| SBI General | Varies by plan | Check specific plan wording |
| ACKO | Varies by plan | Smart Saver vs Super Saver differ |
Maximum Car Age for Zero Dep
| Insurer | Max Age Allowed |
|---|---|
| New India Assurance | 34 months (most restrictive) |
| Bajaj Allianz | 5 years |
| ICICI Lombard | 5 years |
| Tata AIG | 5 years |
| SBI General | 5 years |
| ACKO | 5 years |
| Go Digit | 5 years |
| HDFC Ergo | 5-7 years (most flexible) |
Network Garage Requirement
| Insurer | Garage Restriction for Zero Dep |
|---|---|
| Tata AIG | Mandatory — must use authorized Tata AIG garage |
| HDFC Ergo | Recommended, not mandatory |
| ICICI Lombard | Recommended for cashless |
| SBI General | Not explicitly restricted |
| ACKO | Photo-based claims for minor damage |
If you want maximum flexibility: HDFC Ergo (unlimited claims, up to 7 years, no garage mandate) or ICICI Lombard (unlimited claims, no garage mandate).
The NCB Trap: When a Zero Dep Claim Costs You Money
This is the math most people miss. Filing any claim — even with zero dep — resets your No Claim Bonus to 0%.
NCB Discount Scale
| Claim-Free Years | NCB Discount on OD Premium |
|---|---|
| 1 year | 20% |
| 2 years | 25% |
| 3 years | 35% |
| 4 years | 45% |
| 5+ years | 50% |
The Trap in Numbers
Scenario: You have 50% NCB. OD premium is ₹10,000. You file an ₹8,000 claim where zero dep saves ₹3,000 in depreciation.
| Amount | |
|---|---|
| Depreciation saved by zero dep | +₹3,000 |
| NCB lost at renewal (50% of ₹10,000) | -₹5,000 |
| Net result | -₹2,000 loss |
You saved ₹3,000 on this claim but will pay ₹5,000 more at renewal. Net loss: ₹2,000.
When Filing a Zero Dep Claim Makes Sense
| Claim Size | Depreciation Saved | NCB Lost (50% on ₹10K OD) | Net Gain/Loss | Verdict |
|---|---|---|---|---|
| ₹5,000 | ₹2,000 | -₹5,000 | -₹3,000 | Do not claim |
| ₹15,000 | ₹6,000 | -₹5,000 | +₹1,000 | Marginal |
| ₹50,000 | ₹18,000 | -₹5,000 | +₹13,000 | Claim |
| ₹1,00,000 | ₹35,000 | -₹5,000 | +₹30,000 | Definitely claim |
| ₹1,80,000 | ₹45,000 | -₹5,000 | +₹40,000 | Definitely claim |
Rule of thumb: Only file a zero dep claim if the depreciation savings exceed your NCB loss. For most people with 50% NCB, that means claim amounts above ₹15,000-20,000.
The Fix: Buy NCB Protector Add-On
NCB Protector costs ₹500-1,500/year. It preserves your NCB even after 1 claim per year. Combined with zero dep, it eliminates the dilemma entirely.
The optimal add-on stack for cars under 5 years: Zero Dep + NCB Protector. Total extra cost: ₹1,400-6,500/year. Covers the two biggest gaps in comprehensive insurance.
When Zero Dep Is NOT Worth It
1. Car Older Than 5 Years
Most insurers will not offer it. Those that do charge 30%+ premium loading. IDV has already dropped 50%, so even total repair bills are smaller. The math flips — self-insuring depreciation is cheaper.
2. Clean Driving Record, Low Claim Probability
If you have driven 5+ years without a claim, you are statistically unlikely to claim. Paying ₹1,500-5,000/year for zero dep that you never use is a pure cost. Your 50% NCB discount is worth more.
3. Only Glass Damage Risk
Glass has 0% depreciation in standard policies. Zero dep adds zero value for windshield or window claims. If your primary risk is stone chips and glass cracks, skip zero dep.
4. Very Old Car With Low IDV
A 10-year-old car with ₹1.5 lakh IDV generates small repair claims. The depreciation saved on a ₹5,000-8,000 claim is ₹2,000-3,000 — less than the NCB you lose by filing.
5. Budget-Conscious With Emergency Fund
If you have ₹50,000+ in accessible savings and would rather absorb occasional repair costs than pay recurring add-on premiums, skipping zero dep is rational for older vehicles.
Zero Dep vs Return to Invoice vs Engine Protect: What Each Covers
| Zero Depreciation | Return to Invoice (RTI) | Engine Protect | |
|---|---|---|---|
| Triggers on | Every partial damage claim | Total loss or theft only | Engine/gearbox damage |
| What it pays | Full part replacement cost | Full on-road price of vehicle | Engine + gearbox repair/replacement |
| Typical cost | ₹900-5,000/year | More than zero dep | ~2% of car value |
| Age limit | 5-7 years | 3-5 years | 5-7 years |
| Savings per claim | ₹3,500-1,60,000 | ₹50,000-5,00,000 | ₹50,000-5,00,000 |
| Overlap | None with RTI or Engine | None with zero dep | None with zero dep |
RTI activates only when repair cost exceeds 75% of IDV and the insurer declares total loss. It does not help on partial damage — that is where zero dep works.
Engine Protect covers what zero dep does not: Driving through flooded roads (hydrostatic lock), oil leakage causing seizure, consequential engine damage from water ingression. Standard comprehensive and zero dep both exclude these. Essential in Mumbai, Chennai, Bengaluru, and other flood-prone cities.
All three together for a new Hyundai Creta: approximately ₹5,000-8,000 extra per year. Covers virtually every gap in a comprehensive policy.
Common Zero Dep Claim Rejections
Your policy has zero dep active. You file a claim. It gets rejected or depreciation is still deducted. Here is why:
1. Car Repaired Before Informing Insurer
You got the car fixed at your local garage and then filed a claim with bills. Insurer cannot assess original damage. Claim denied. Always inform the insurer first, get a surveyor visit, then repair.
2. Claim Limit Exceeded
Your policy allows 2 zero dep claims per year. You filed a 3rd. The claim is processed as standard comprehensive — depreciation applies.
3. Non-Network Garage (Tata AIG)
Tata AIG explicitly requires repairs at their authorized garage network. Going to a preferred local mechanic voids the zero dep benefit.
4. Surveyor Classifies as Wear and Tear
The surveyor inspects damage and determines it is gradual deterioration, not accidental. Zero dep covers only accidental damage. Worn brake pads, rusted panels, cracked weather seals — all classified as wear and tear.
5. Tyres Excluded
Bajaj Allianz and Go Digit explicitly exclude tyres and tubes from zero dep coverage. A ₹6,000 tyre replacement still gets 50% depreciation deducted. Check your policy wording.
6. Late Reporting
Some insurers require notification within 24-48 hours of the incident. Claims reported 30+ days later face scrutiny and potential rejection.
7. Paint Depreciation Still Partially Applied
Even with zero dep, some insurers apply the paint material depreciation formula (50% on 25% of total paint bill). This is policy-specific — read the fine print.
Spare Part Costs: What You Actually Save
Understanding common repair costs shows why zero dep matters more on some cars than others.
Hyundai (Creta, i20, Verna)
| Part | Cost (Parts + Paint + Labour) | Depreciation Without Zero Dep | You Save With Zero Dep |
|---|---|---|---|
| Front bumper | ₹7,000-10,000 | ₹3,500-5,000 (50% plastic) | ₹3,500-5,000 |
| Rear bumper | ₹6,000-9,000 | ₹3,000-4,500 | ₹3,000-4,500 |
| Headlight assembly | ₹3,000-4,500 | ₹1,500-2,250 | ₹1,500-2,250 |
| Fender (per side, with paint) | ₹3,500-5,000 | ₹350-750 (metal, age-based) | ₹350-750 |
| Side door (with paint) | ₹13,000-20,000 | ₹1,300-5,000 | ₹1,300-5,000 |
| Front windshield | ₹9,500-12,500 | ₹0 (glass = nil dep) | ₹0 |
Honda City
| Part | Cost | Depreciation Without Zero Dep | You Save |
|---|---|---|---|
| Bumper with paint | ₹10,000 | ₹5,000 | ₹5,000 |
| Windshield | ₹9,000-11,000 | ₹0 | ₹0 |
| Headlight assembly | ₹4,000-5,500 | ₹2,000-2,750 | ₹2,000-2,750 |
| Door replacement | ₹15,000-25,000 | ₹1,500-6,250 | ₹1,500-6,250 |
Luxury Segment (BMW 3-Series)
A single headlight assembly replacement costs ₹1.5-2 lakh. Without zero dep, 50% depreciation on plastic housing = ₹75,000-1,00,000 from your pocket. With zero dep, you pay only the ₹2,000 compulsory deductible. One claim saves the equivalent of 15-20 years of zero dep premium.
The Decision Framework
Buy Zero Dep If:
- Car is under 5 years old
- You drive in heavy traffic (higher accident probability)
- Car is financed (lender may require it)
- Repair parts are expensive (SUVs, luxury, EVs)
- You live in an area with poor road conditions
- You want peace of mind against out-of-pocket costs
Skip Zero Dep If:
- Car is over 5-7 years old
- You have an excellent driving record (5+ years claim-free)
- IDV is below ₹2 lakh
- You have ₹50,000+ emergency fund for self-insuring small repairs
- Your primary risk is glass damage only
Always Pair With:
- NCB Protector (₹500-1,500/year) — prevents the NCB trap on small claims
- Engine Protect (if in a flood-prone city) — covers what zero dep does not
- Return to Invoice (if car is under 3 years) — covers total loss at full on-road price
Insurer Recommendation by Scenario
| Your Situation | Best Insurer for Zero Dep | Why |
|---|---|---|
| Want maximum claims, no restrictions | HDFC Ergo | Unlimited claims, up to 7 years, no garage mandate |
| Want unlimited claims + strong network | ICICI Lombard | Unlimited claims, 5,900+ cashless garages |
| Budget-conscious, low claim risk | Bajaj Allianz | Competitive premium, 2-claim limit is enough |
| Digital-first, quick claims | ACKO | Photo-based claims for minor damage, digital process |
| Car older than 5 years | HDFC Ergo | Only insurer with possible 7-year extension |
| Need highest cashless garage count | SBI General | 16,000+ network garages across India |
Bottom Line
Zero depreciation is the single most valuable add-on in car insurance for vehicles under 5 years old. At ₹900-5,000/year, it covers ₹3,500-1,60,000 per claim in depreciation deductions that you would otherwise pay from your pocket.
The catch: always pair it with NCB Protector. Without NCB Protector, filing small claims to use your zero dep can cost you more in lost NCB discount than the depreciation saved.
For cars under 3 years — buy it without thinking. For 3-5 years — buy it if your premium loading is under 25%. For over 5 years — the math usually does not work.
Related reads:
- Third-Party vs Comprehensive Car Insurance — Complete Breakdown
- IDV Manipulation Exposed — How a Cheaper Policy Costs You ₹40,000-₹1.5 Lakh
- Motor Claim Settlement Ratio — Every Insurer Ranked by IRDAI Data
- NCB Transfer — Switching Insurer Without Losing Discount
- Lapsed Car Insurance — What Happens Day 1 to Day 120