Sum Insured

Sum insured is the maximum amount that a general-insurance or indemnity health policy will reimburse in a single policy year for covered expenses. It is a ceiling, not a lumpsum. If you have a ₹10 lakh sum insured on a family floater health plan and hospitalisation costs ₹3.

8 lakh, the insurer pays ₹3. 8 lakh (subject to sub-limits and co-pay) and the remaining ₹6. 2 lakh of the sum insured is still available for any further admissible claim in the same policy year.

At renewal, it resets to the original ₹10 lakh (plus any no-claim bonus additions). In Indian health insurance, a sum insured of ₹5 lakh was the old thumb rule a decade ago, but with tertiary-care hospital bills routinely crossing ₹8 lakh to ₹15 lakh for a single hospitalisation, experts now suggest a base of at least ₹10 lakh for a single person in a metro and ₹25 lakh to ₹50 lakh if you are also responsible for parents. A cost-efficient way to reach the higher ceiling is to pair a modest base (say ₹5 lakh) with a super-top-up policy that kicks in beyond a deductible.

Worked example: a ₹5 lakh base plus a ₹20 lakh super top-up with a ₹5 lakh deductible can cost less than a single ₹25 lakh comprehensive plan, because the super top-up is priced on the probability that your claim exceeds the deductible, not on the full spectrum of small claims. A common misconception is that sum insured equals hospital bill reimbursement — in practice, sub-limits can reduce the usable portion significantly. A policy with a 1% room-rent limit on a ₹5 lakh sum insured caps the daily room eligibility at ₹5,000, and if you opt for a ₹15,000 room, the hospital reduces every other charge proportionally under the 'proportional deduction' clause.

Always read the sub-limits table and the exclusions list before choosing the sum insured number. Related: sum assured, deductible, sub-limit.