Voluntary deductible in car insurance: how much discount it gives and when it backfires
How compulsory and voluntary deductibles work in Indian motor policies, the typical discount scale and caps, a break-even worked example, and who should keep it at zero.
A voluntary deductible is an amount you agree to bear on every own-damage claim, on top of the compulsory deductible (commonly ₹1,000 for private cars up to 1,500 cc and ₹2,000 above 1,500 cc). In return you get a discount on the OD premium, which under the scale many insurers still follow is capped at a few hundred to a few thousand rupees a year. Because the discount is small and capped, a high voluntary deductible only makes sense if you rarely claim and would pay small repairs yourself anyway to protect your NCB. For most owners who would claim when something goes wrong, a voluntary deductible of zero or ₹2,500 is the sensible range.
This guide is part of the car insurance renewal checklist.
Compulsory vs voluntary deductible
| Compulsory deductible | Voluntary deductible | |
|---|---|---|
| Who decides | Set in the policy wording | You choose at purchase or renewal |
| Typical amount, private car | ₹1,000 up to 1,500 cc; ₹2,000 above | ₹0, ₹2,500, ₹5,000, ₹7,500, ₹15,000 |
| Typical amount, two-wheeler | ₹100 under many wordings | Smaller options where offered |
| Effect on premium | None (built in) | Discount on OD premium |
| Applies to | Each OD claim | Each OD claim, in addition |
| Applies to theft and total loss | Yes, under most wordings | Yes, under most wordings |
Deductibles do not apply to third-party claims; the insurer pays third parties in full.
The discount scale
The former India Motor Tariff scale for private cars, which many insurers still use or adapt, is:
| Voluntary deductible | Discount on OD premium | Maximum discount |
|---|---|---|
| ₹2,500 | 20% | ₹750 |
| ₹5,000 | 25% | ₹1,500 |
| ₹7,500 | 30% | ₹2,000 |
| ₹15,000 | 35% | ₹2,500 |
Insurers now file their own products, so your quote may show different figures. The key feature is the cap: on most cars the maximum is reached quickly, so the extra deductible above ₹2,500 buys very little extra discount.
Worked example: is ₹7,500 worth it?
Illustrative. OD premium after NCB: ₹9,000.
| Choice | Discount (scale above) | OD after discount | Saving with GST |
|---|---|---|---|
| None | – | ₹9,000 | – |
| ₹2,500 | 20% = ₹1,800, capped at ₹750 | ₹8,250 | ₹885 |
| ₹5,000 | 25% = ₹2,250, capped at ₹1,500 | ₹7,500 | ₹1,770 |
| ₹7,500 | 30% = ₹2,700, capped at ₹2,000 | ₹7,000 | ₹2,360 |
| ₹15,000 | 35% = ₹3,150, capped at ₹2,500 | ₹6,500 | ₹2,950 |
Moving from ₹0 to ₹7,500 saves ₹2,360 a year and costs you ₹7,500 extra on each claim. Break-even: ₹2,360 ÷ ₹7,500 = 0.31. If you expect to claim more often than about once every three years, the deductible costs more than it saves.
Going from ₹7,500 to ₹15,000 saves another ₹590 for ₹7,500 more risk per claim, a break-even of one claim every 13 years. That rarely makes sense.
How deductibles interact with NCB
If you have high NCB, you probably would not claim small repairs anyway (see claim or pay yourself). In that case a ₹2,500 or ₹5,000 voluntary deductible costs you nothing extra in practice, because you would only claim larger losses. The deductible then becomes a cheap way to lower the premium. But on a total loss or theft, it is deducted from the IDV payout too, so you lose it then.
When to keep it at zero
- Newer cars where a single accident may need expensive parts and you would claim.
- Drivers in dense city traffic with frequent minor damage risk.
- Anyone who would struggle to pay ₹5,000–₹7,500 at short notice.
- When you have zero dep and NCB protection and intend to use them.
When a voluntary deductible can make sense
- An older car you drive little and would repair small damage yourself.
- High NCB (45–50%) and enough savings to pay the deductible.
- A second car used occasionally.
Comparing quotes with different deductibles
Some online journeys pre-fill a voluntary deductible to show a lower price. When you line up quotes in the quote comparison tool, enter each quote's total deductible (compulsory plus voluntary), and set the claim to a realistic repair bill. The worked renewal comparison shows a quote that looked ₹3,660 cheaper largely because of a lower IDV, missing add-ons and a voluntary deductible.
Frequently asked questions
Is the deductible deducted from each claim or once a year?
From each claim. Two claims in one year mean two deductibles.
Does a deductible apply when someone else hits my car?
If you claim under your own OD cover, yes. If the other party's insurer pays you, your deductible does not apply.
Can I change my voluntary deductible mid-term?
Usually not; deductibles are set at the start of the policy period and changed at renewal.
If the repair costs less than my deductibles, does NCB suffer?
If the insurer pays nothing, there is normally no paid claim and NCB is not affected. Ask the insurer to record the claim as closed without payment, or simply do not lodge it if no third party is involved.
Sources
- IRDAI — approved motor products and wordings
- Bima Bharosa — complaints about deductions applied at claim time
