Cumulative Bonus in Health Insurance: Does a Claim Reset It?

Quick answer: A cumulative bonus (often called a no-claim bonus, or NCB) raises your health insurance sum insured at renewal, at no extra premium, for every year you do not claim. Typical plans add 10% to 20% a year and stop at 50% to 100% of the base cover. The catch is the claim year: many policies cut the bonus back after a claim, so read the wording before you count on it.

What the IRDAI rulebook actually says

IRDAI's Master Circular on health insurance business (May 2024) lets insurers reward claim-free policyholders with a no claim bonus at renewal. As summarised by tax and insurance publications that reproduce the circular, it can take two forms: a cumulative bonus, meaning an addition to the sum insured without a matching rise in premium, or a discount on the renewal premium. The circular is not a formula. It does not fix how much bonus a plan must give, and the summaries we reviewed do not show any rule that stops an insurer from reducing the bonus after a claim. So the percentages, the cap and the claim-year treatment all come from your insurer's policy wording, not from a regulator-set number.

Two other provisions in the same circular matter for bonus holders. First, an insurer cannot refuse to renew your policy just because you made claims earlier. Second, when you port to another insurer you can carry over credit for the sum insured, the no claim bonus and the waiting periods you have already served, to the extent of what you held. Check the circular itself on the IRDAI health department page for the exact text.

Cumulative bonus vs renewal discount

These two rewards sound similar but behave very differently.

• Cumulative bonus: your premium stays the same, but the cover grows. A Rs 10 lakh policy with a 10% yearly bonus and a 50% cap would show Rs 11 lakh after one claim-free year, Rs 12 lakh after two, and top out at Rs 15 lakh after five. Under that example you pay for Rs 10 lakh and are covered for Rs 15 lakh.
• Renewal discount: the sum insured stays put, but the premium you pay at renewal is lower. It is useful if you already hold enough cover and want to cut cost.

Which is better? With medical inflation pushing hospital bills up, extra cover tends to help more people than a small discount. A discount makes sense mainly when your cover is already large relative to your city, family size and age. Some plans let you pick between the two; others fix it for you.

The part people miss: what happens after a claim

This is where plans differ the most. Insurer guides describe three common outcomes after a claim year:

• The bonus resets to zero and your cover falls back to the base sum insured.
• The bonus is reduced by the same percentage it was earned at. A policy that gave 10% a year might take back 10%, not all of it.
• The bonus is protected, if you bought a "bonus protection" or similar add-on, or if the plan includes one by default.

The practical point is that the bonus is not a guaranteed pot of money. Think of it as a reward for staying healthy, not as a savings account. Do not choose a lower base cover assuming the bonus will fill the gap, because a single hospitalisation in year two can remove it just when you need it.

A worked example with a claim

Take the same Rs 10 lakh policy with a 10% yearly bonus capped at 50%. After three claim-free years your cover is Rs 13 lakh. In year four a family member is hospitalised and a claim is paid. Under a reset rule, the next renewal begins at Rs 10 lakh again. Under a step-down rule, you might return to Rs 12 lakh. Under a protected-bonus rule, you keep Rs 13 lakh and the bonus carries on. The premium paid was the same in all three cases, so the difference is entirely in the wording. This is an illustration of how the rules can work, not a statement about any particular insurer's product.

Checklist: what to read in your policy wording

• Is the bonus a percentage of the base sum insured, or a fixed rupee amount per year?
• What is the yearly rate and the maximum cap (commonly 50% to 100% of base)?
• What happens to it in a claim year: reset, reduction, or protected?
• Is the bonus offered on individual plans only, or also on family floaters, and how is it shared among members?
• Is there a paid add-on that protects the bonus, and what does it cost?
• Does a restoration or recharge benefit sit on top of the bonus? See our explainer on restoration benefit.

Does the bonus move with you if you switch insurers?

Under the IRDAI framework, credit for the no claim bonus you have earned can travel with you through portability, provided you apply correctly and on time. The new insurer still underwrites the policy and may assess the additional cover differently, so portability is not automatic acceptance. Details of the process, timelines and what to avoid are in our guide to health insurance portability. If you are thinking of porting, start well ahead of your renewal date rather than in the last week.

How it connects to the 60-month rule

Bonus accumulation and the moratorium period run on the same logic: continuous coverage is rewarded. Under the Master Circular, once a policy has completed 60 months of continuous cover, claims cannot be contested on grounds of non-disclosure. A gap in renewal can disturb both your bonus and your continuity credit, so keep your policy alive. Our post on the moratorium period explains the rule, and the health insurance glossary defines the other terms used here.

Common mistakes

• Counting the bonus as base cover. Buy the base sum insured you need today and treat the bonus as a cushion.
• Skipping small claims out of fear. A tiny claim may be cheaper to pay yourself, but only if the policy wording really takes the bonus away. If your plan protects it, there is nothing to lose by claiming.
• Letting the policy lapse. A break in cover can reset your accumulated benefits. Renewals paid inside the grace period are generally treated as continuous, so ask your insurer how it handles this.
• Comparing plans on bonus rate alone. A 100% cap sounds generous, but a plan with a lower rate that protects the bonus after a claim can serve you better.

Frequently asked questions

Is a cumulative bonus the same as a no-claim bonus?

In health insurance the terms are used interchangeably, though strictly a no claim bonus can be either extra cover (cumulative bonus) or a premium discount. Check which one your plan gives.

Do I pay extra premium for the bonus cover?

No. A cumulative bonus is an increase in the sum insured without a related premium rise. Your premium can still change at renewal because of age band or insurer repricing.

Will I lose the bonus if I make one claim?

It depends on the policy. Some plans reset the bonus, some reduce it by the rate at which it was earned, and some protect it. The wording and any add-on decide this.

Can an insurer refuse to renew me because I claimed?

No. IRDAI's Master Circular says renewal cannot be denied on the basis of previous claims.

Does the bonus carry over if I port my policy?

Portability credit extends to the sum insured, no claim bonus and the waiting periods you have already served, according to the Master Circular. The new insurer's underwriting still applies to any extra cover.

Where can I check the official rule?

Read the Master Circular on Health Insurance Business on the IRDAI website, and your own policy document and prospectus for the plan-specific terms. Our trust page explains how we handle sources, and the health insurance hub links to more explainers.

Sources

IRDAI Master Circular on Health Insurance Business (May 2024), as reproduced and summarised by TaxGuru and Value Added; IRDAI health department page (irdai.gov.in/health-dept); insurer-neutral explainers on cumulative bonus from Policybazaar and Ditto. The percentages quoted are typical market examples, not rules; confirm against your own policy wording. NewEdgePolicy is an independent education site, not an insurer or broker, and this article is not financial advice.