What Is No-Claim Bonus (NCB) in Health Insurance?

No-Claim Bonus (NCB) in health insurance is a reward given to policyholders who do not make any claims in a policy year. Unlike motor insurance where NCB reduces your premium, health insurance NCB typically increases your sum insured without any corresponding increase in base premium. This is an excellent mechanism to enhance your coverage over time at zero extra cost.

How NCB Works in Health Insurance

Each claim-free year, the insurer adds a percentage to your base sum insured as bonus:

  • Most plans: 5–10% of base sum insured added per claim-free year
  • Some plans (e.g., Care Supreme): 50% per claim-free year (exceptional)
  • Maximum accumulation: Usually capped at 50–100% of base sum insured

Example: You buy a ₹5 lakh plan with 10% annual NCB:

  • Year 1 (no claim): Sum insured = ₹5 lakh + ₹50,000 NCB = ₹5.5 lakh
  • Year 2 (no claim): ₹5.5 lakh + ₹50,000 = ₹6 lakh
  • Year 5 (no claim): ₹5 lakh + ₹2.5 lakh = ₹7.5 lakh (50% max reached)

NCB Reset on Claims

If you make a claim in any year, your NCB typically resets:

  • Standard reset: All accumulated NCB is lost — sum insured reverts to base
  • Partial reset: Some plans reduce NCB by one step per claim, not fully reset
  • NCB protection add-on: Preserves your NCB even after one claim per year

NCB vs Restoration: What's the Difference?

  • NCB: Long-term reward — builds your sum insured over years, but is lost when you claim
  • Restoration: In-year protection — refills your sum insured immediately after it is exhausted, does not affect NCB

A good health plan should have both: NCB to grow coverage over time and restoration to protect against multiple claims in a single year.

Plans with Best NCB

  • Care Supreme: 50% NCB per claim-free year, up to 100% of base sum insured. Best in class.
  • HDFC ERGO Optima Secure: 50% NCB per year (through Secure benefit doubling)
  • Niva Bupa ReAssure 2.0: Lock-the-clock NCB — premium stays at entry age despite claim history
  • Star Health plans: 5–10% NCB standard; Cumulative Bonus Up to 100% over 10 years

When to Claim vs Protect NCB

For small hospitalisation bills, calculate whether it is worth making a claim:

  • Your NCB accumulated: ₹1 lakh extra sum insured (from ₹5 lakh base)
  • Premium saved by NCB: Approximately ₹2,000–₹3,000/year
  • If you claim ₹15,000 and lose ₹1 lakh NCB, you've lost ₹2,000–₹3,000/year of benefit
  • Pay the ₹15,000 out of pocket if it is affordable — protect your NCB for larger claims

NCB Protect Add-On

Most insurers offer an NCB protect add-on for ₹500–₹2,000/year. This allows one claim per year without resetting your NCB. If you have accumulated significant NCB (3–5 years worth), this add-on is excellent value insurance for your insurance bonus.

NCB and Policy Portability

When you port your health policy to a new insurer, the NCB from the old policy does not transfer. You lose accumulated NCB when switching insurers. This is an important consideration: if you have accumulated 5 years of NCB (potentially ₹1–2.5 lakh extra cover), portability costs you that benefit. Factor this into portability decisions.

Conclusion

NCB is one of the most overlooked but genuinely valuable features of health insurance. Over a decade, a plan with good NCB accumulation can effectively double your sum insured for free. Maximise NCB by choosing plans with high accumulation rates, protect it with the NCB add-on if affordable, and factor NCB loss into portability decisions.