How Much Health Insurance Sum Insured Is Enough?

The right health insurance sum insured is the amount that would pay for a serious hospitalisation at the kind of hospital you would actually use, in your city, with a margin for a second claim in the same year and for medical costs rising over time. For many urban families that points to a figure well above the cover an employer provides. A practical way to get there without paying for a very large base policy is a moderate base cover combined with a super top-up.

This guide sets out how to estimate the figure and the policy features that decide whether the sum insured actually pays out.

Step 1: Estimate what a serious hospitalisation costs

Start with evidence, not a round number. Ask the hospitals you would realistically go to for typical package estimates for major procedures, such as cardiac surgery, a joint replacement or an extended intensive care stay. Friends’ recent bills and hospital price lists are also useful.

Suppose the estimates you gather for a major procedure with complications at a good private hospital in your city fall in the range of ₹8 lakh to ₹12 lakh. That range, not ₹3 lakh or ₹5 lakh, is the starting point.

Step 2: Allow for a second claim and for rising costs

Second claim. In a family floater, the sum insured is shared by everyone covered. If one member uses ₹7 lakh of a ₹10 lakh floater in April, only ₹3 lakh remains for everyone else until renewal, unless the policy restores the cover. Families with older members or more people covered need more headroom.

Medical inflation. Hospital costs have tended to rise faster than general prices. A sum insured that is adequate today will look thin in five years if it is never increased.

Step 3: Account for what you already have

Employer cover is valuable but temporary. It usually ends when you leave the job, and it may end at exactly the time you are between jobs or have just retired, when buying a new policy is harder and pre-existing conditions may face waiting periods. Treat it as a supplement to your own policy, not a replacement.

Your emergency fund can absorb small bills and the costs a policy does not pay, but it should not be planned as the main defence against a large hospital bill.

Step 4: Consider a base policy plus super top-up

A super top-up policy pays only after your medical bills in a policy year cross a set amount, called the deductible. Because it pays only above that level, it is typically much cheaper than the same amount of base cover.

If a hospitalisation costs ₹12 lakh, the base policy pays ₹5 lakh and the super top-up pays the remaining ₹7 lakh, subject to both policies’ terms.

Illustrative figures. Actual payouts depend on each policy’s terms, exclusions and sub-limits.

Two points matter when choosing one:

• Super top-up or top-up. A super top-up usually counts all bills in the policy year towards the deductible. A plain top-up usually applies the deductible to each claim separately, so two ₹4 lakh bills might not trigger it at all. Read the policy wording to see which you are buying.
• Align the deductible with your base cover, so there is no gap between where one stops and the other starts.

Features that decide whether the sum insured is usable

A large sum insured is of little use if policy conditions cap what it pays. Check these in the policy wording before relying on the headline figure:

• Room rent limits. A cap on room rent can reduce the payout for other charges in proportion, not just the room charge itself.
• Sub-limits on specific treatments or procedures.
• Co-payment, where you pay a fixed share of every claim.
• Waiting periods for pre-existing conditions and specific treatments.
• Restoration of the sum insured after a claim, and whether it applies to the same illness or the same person.
• The insurer’s network hospitals in your city, for cashless treatment.

Individual policies or a family floater

A floater is usually cheaper for a young family because the chance of several large claims in one year is low. The premium is often driven by the oldest member covered, so including parents in the same floater can raise the cost sharply and leave less cover for everyone. Many families keep a floater for themselves and children and separate policies for parents.

A simple worksheet

1. Estimated cost of a major hospitalisation in your city: _____
2. Add headroom for a second claim in the same year if it is a floater: _____
3. Round up for medical cost increases over the next few years: _____
4. Decide how much will be base cover and how much a super top-up: _____
5. Check room rent, sub-limits and co-payment against the figures above.
6. Diary a review every two or three years, and when family circumstances change.

Where this fits

• Making a claim when you need to: cashless vs reimbursement claims
• Cash for costs the policy does not pay: how much emergency fund you need
• The other cover a family relies on: how much term insurance cover
• Budgeting for annual premiums: household budget method