Why Your No-Claim Bonus Won't Keep Up With Medical Inflation (And What Actually Will)
By Nitish Bharadwaj · Published Jul 3, 2026 · 5 min
Most health insurance policyholders chase the No Claim Bonus (NCB) — a reward that grows your sum insured by around 10% for every claim-free year, up to a cap of 50–100%. The catch: India's medical inflation runs at 12–14% annually, meaning NCB growth structurally can't keep pace, and a single claim usually wipes the bonus to zero. This guide explains how NCB and the restoration benefit work differently, why relying on NCB alone leaves a widening coverage gap, and how to check whether your policy already includes restoration.
Every year at renewal, insurers dangle the same reward in front of policyholders who didn't file a claim: a bigger sum insured for the same premium. It feels like a win, and cumulatively, it is — but on its own, this No Claim Bonus quietly loses a race against India's rising hospital bills. There's a second, less-marketed feature — the restoration benefit — that protects you in a way NCB was never designed to. Most policyholders have one, or both, and don't know the difference.
What the No-Claim Bonus (NCB) Actually Rewards
NCB, also called a cumulative bonus, increases your sum insured by a fixed percentage — most commonly 10% — for every year you go without filing a claim, up to a cap that insurers usually set between 50% and 100% of your base sum insured. So a ₹10 lakh policy that stays claim-free for five years could grow to ₹15 lakh in cover, at no extra premium. It rewards good luck and healthy years. But it comes with two structural limits: the growth is capped, and filing a claim does reduce it — exactly how much, under IRDAI's current standardized rule, is smaller than the full reset to zero many policyholders still assume.
Restoration Benefit: A Refill, Not a Reward
Restoration works on a completely different logic. Instead of rewarding a claim-free year, it refills your sum insured within the same policy year, after you've exhausted it through a claim. If your ₹10 lakh cover is used up on a ₹7 lakh surgery in March, a restoration benefit can reinstate the remaining amount — or in many policies, 100% of the original sum insured — for any other, unrelated illness or family member later that same year. It doesn't grow your cover over time the way NCB does; it protects you from running out of cover entirely in a bad year.
| Feature | No Claim Bonus (NCB) | Restoration Benefit |
|---|---|---|
| Triggered by | A claim-free year | Exhausting the sum insured through a claim |
| Effect | Increases sum insured at renewal | Refills sum insured within the same policy year |
| Typical size | ~10% per year, capped at 50–100% | Often 100% of the base sum insured |
| What a claim does to it | Reduces at the same rate it accrued (never below base SI) | Is the benefit that activates because of the claim |
| Protects against | Rising costs over many healthy years | Running out of cover in one bad year |
What Happens the Moment You Actually Claim
This is where the two benefits diverge in a way that matters. The year you need your policy most — because you filed a claim — is exactly the year NCB stops helping and restoration is designed to kick in. Without restoration, a large claim early in the policy year can leave a family with little or no cover for the remaining months, right when medical risk is highest. Without NCB, your cover simply doesn't grow in the good years, but you're not worse off than when you started.
- Check your policy wording, not just the brochure, for "restoration benefit" or "refill benefit" as a named clause — it's an add-on in some plans and a default feature in others.
- Confirm whether restoration applies only to a different, unrelated illness within the same year — this exclusion is common and rarely explained upfront.
- Ask whether restoration is available from the first claim of the year or only from the second claim onward; several popular plans restrict it to reduce misuse.
- Check whether your NCB resets fully or partially after a claim — some newer plans offer "NCB protection" as an add-on that preserves the accumulated bonus even after a claim.
Which One Should Decide Your Buying Choice?
If you're comparing two similar plans and one has NCB but no restoration, and the other has both, the one with restoration deserves a real look, especially for families with elderly parents or a history of hospitalisation. NCB is a nice-to-have that rewards a healthy run; restoration is closer to a structural safeguard for the bad year your policy actually exists for. Neither substitutes for buying enough base cover in the first place — a policy that's undersized from day one won't be fixed by either feature — and if you're shopping for a new plan, our health insurance plan picks for 2026 note which insurers include restoration as standard versus an add-on. It's also worth knowing that even a maxed-out claim under the 5-year moratorium rule can't be rejected for old non-disclosure once you qualify — but that protects the claim itself, not the sum insured left over for the rest of the year, which is exactly the gap restoration is meant to close.
Bottom Line
NCB and restoration solve two different problems — one rewards years without a claim, the other protects you during the year you actually need your policy. Given that medical inflation is running close to or above the typical NCB growth rate, restoration is the feature to prioritise when comparing plans, and NCB protection is worth adding once you've accumulated a few years of bonus you don't want to lose to a single claim. Neither feature, though, tells you how reliably an insurer pays out in the first place — for that, see our guide to reading IRDAI's claim settlement ratio data correctly before you shortlist a plan.