10 Factors Affecting the Premium of Critical Illness Insurance

Last updated: July 20, 2026 | 7 min read
What Affects the Cost of Critical Illness Insurance?

Article summary

This article explains 10 factors that affect the premium of critical illness insurance in India. These include such parameters as your age, health condition, lifestyle, profession, sum assured, policy period, and others. Moreover, you will find out why two individuals purchasing the same plan pay different premiums

The main factors affecting the premium of critical illness insurance are age, tobacco use, health condition, family medical history, occupation, lifestyle, gender, sum insured, policy term, and riders/add-ons.

Critical illness policy pays a fixed lump sum if you are diagnosed with one of the specified serious conditions, such as cancer, a heart attack, stroke, kidney failure or major organ transplant. Due to the high cost associated with these critical illnesses, insurance companies always evaluate the level of risk before determining the premiums.

What Factors Affect the Premium of Critical Illness Insurance?

The table below explains the main factors that affect the cost of critical illness insurance and why they make a huge difference.

FactorEffect on premiumWhy
Age at entryHigher with ageRisk of serious illness rises as you get older
GenderVaries by conditionSome illnesses are statistically more common in one gender
Sum insuredHigher for larger coverA bigger payout is a bigger liability for the insurer
Tobacco useHigher for usersSmoking and chewing raise the risk of covered illnesses
Personal medical historyHigher with existing conditionsPre-existing conditions increase claim likelihood
Family medical historyHigher with hereditary riskA family history of certain illnesses signals higher risk
OccupationHigher for risky jobsHazardous work raises exposure to illness or injury
Lifestyle and habitsHigher for poor lifestyleAlcohol, obesity and inactivity increase risk
Policy termVaries with durationLonger terms lock in cover but may cost more overall
Illnesses covered and ridersHigher with more coverMore conditions and add-ons mean more risk priced in

How Does Age Affect the Premium of Critical Illness Insurance?

Age happens to be the greatest influence on a critical illness premium. The chances of suffering from conditions such as heart attacks, strokes, and cancer increase progressively as one ages. Therefore, the older one is when they acquire critical illness insurance, the more expensive the premiums become. 

Learn 7 Reasons why health insurance premiums change with age. 

Does Gender Affect the Premium of Critical Illness Insurance?

Yes, Gender can affect the premium because some critical illnesses are statistically more common in one gender than the other. For example, certain heart diseases and cancer are more frequent among men or women, and this affects the cost of insurance.

How Does the Sum Insured Affect Your Critical Illness Insurance Premium?

The premium rises as the sum insured rises, because the sum insured is the lump sum the insurer must pay on a valid claim. A larger payout is a larger liability, so a Rs 50 lakh cover costs more than a Rs 10 lakh cover for the same person. Thus, choosing an appropriate sum insured, taking into account your income, loans, and the cost of treatment, is an important decision.

Non-disclosure can cost you the claim

If you fail to disclose that you smoke, have a medical condition, or work in a risky occupation in order to cut down your premium, you may face claim issues. In case the insurance company finds out that the information is related to your claim, it may decrease the amount payable or even deny the claim altogether.

Does Tobacco Use Increase the Premium of Critical Illness Insurance?

Tobacco usage leads to an increase in the premium due to the risk of developing various diseases, like cancer, heart attack, and stroke. It's important to be honest about your tobacco use when buying a health insurance policy. If you don't disclose it and the insurer later finds out, your claim could be rejected or the payout could be reduced for giving incorrect information.

How Do Your Medical History and Family History Affect the Critical Illness Insurance Premium?

Your medical history and your family's medical history will raise your premium if they indicate that there is a greater risk of making a claim in the future. These are two separate factors that are considered by insurers together.

Your medical history: If you already have conditions such as diabetes, high blood pressure, or high cholesterol, the insurer may charge a higher premium. In some cases, they may also add exclusions or ask you to undergo a medical check-up.

Your family medical history: If your parents or siblings have had conditions like heart disease, certain types of cancer, or diabetes, some insurers may treat this as a higher health risk and factor it into your premium.

When you buy a policy, you'll usually be asked to fill out a health declaration. For higher sums insured or older applicants, the insurer may also ask for a medical check-up. It's always best to answer these questions honestly so your policy remains valid and your future claims aren't affected.

Does Your Occupation and Lifestyle Affect Your Critical Illness Insurance Premium?

Yes. The kind of work you do and your everyday lifestyle can both affect how much you pay for critical illness insurance.

Your occupation: If you work in a high-risk job, such as mining, construction, or an industry that involves handling chemicals, you may have to pay a higher premium because these jobs carry a greater risk of illness or injury. People with office-based or other low-risk jobs usually pay less.

Your lifestyle: Habits such as smoking, heavy alcohol consumption, obesity, and a lack of physical activity increase the risk of serious illnesses like heart disease, stroke, and cancer. Because of this, people with healthier lifestyles generally pay lower premiums than those with higher health risks.

How Do Policy Term, Covered Illnesses, and Riders Affect Your Critical Illness Insurance Premium?

The choices you make while buying a critical illness policy can also affect your premium. The longer you want the cover, the more illnesses you want included, and the more extra benefits you add, the more you're likely to pay.

Policy term: When purchasing an insurance policy that provides coverage over a long period, you are most likely going to pay more premiums as compared to an insurance policy whose coverage period is limited to a few years.

Number of illnesses covered: A policy that covers more critical illnesses usually costs more than one that covers only a few, as the insurer is taking on a higher risk.

Riders and add-ons: Additional benefits offered by the policy, such as the waiver of premium, increase the premium because of the added benefits they offer.

Why Two People Pay Different Critical Illness Insurance Premiums

Now, think about two individuals who purchase the same Rs 25 lakh critical illness insurance, and note how the above-listed factors come together to influence the premium amount. The following numbers are only for illustration purposes.

DetailRahulVikram
Age at entry30 years45 years
Tobacco useNoYes
Sum insuredRs 25 lakhRs 25 lakh
Medical historyNo existing conditionsHigh blood pressure
OccupationOffice-basedConstruction site
Illustrative annual premiumLower bandSubstantially higher band

In this example, Vikram pays a higher premium because several factors work against him. He's older, uses tobacco, has high blood pressure, and works in a higher-risk job. Even though Rahul and Vikram have chosen the same sum insured, these differences lead to very different premiums. The exact premium will vary from one insurer to another because every insurer has its own way of assessing risk and calculating premiums.

Key Takeaways

  • Age and tobacco use have the biggest impact on your premium. Buying a policy at a younger age and avoiding tobacco can help you get lower premiums.

  • A higher sum insured usually means a higher premium. This is because the insurer has to pay a larger lump sum if you make a valid claim.

  • Your health, family medical history, occupation, and lifestyle also matter. Existing medical conditions, a family history of serious illnesses, high-risk jobs, and unhealthy habits can increase your premium.

  • The policy you choose affects the cost. A longer policy term, a wider list of covered illnesses, and additional riders generally increase the premium.

  • Always disclose your details honestly. Hiding information about your health, tobacco use, or occupation can lead to your claim being reduced or even rejected.

Frequently asked questions

Critical illness insurance is a policy that pays a fixed lump sum if you are diagnosed with one of the serious conditions it lists, such as cancer, heart attack, stroke, kidney failure or major organ transplant. 

The two most important factors are age and smoking habits. With age, the chances of getting critically ill increase, whereas smoking increases the chance of developing certain illnesses included in the coverage.

The factors you can influence include the sum insured you choose, the number of illnesses and riders you add, the policy term, and your own habits, such as tobacco use and lifestyle over time. Buying earlier in life also generally secures a lower rate than buying the same cover later.

This varies depending on the age of the buyer and the level of cover. Large sum insured levels and older buyers are more likely to have a medical test, but younger buyers with small sum insured can be required to just declare their health status. Always give correct answers to health questions posed.

Two people pay different premiums because several factors will vary between them. Two individuals aged 40 years could pay differently if one uses tobacco, has an existing condition, works a hazardous job or chooses a higher sum insured.

About the authors

Neviya Laishram

Neviya Laishram

Written by · Senior Editor – Health, Life and Group Health Insurance Content at ACKO

With a journalism background, she brings 9 years of experience in strategising and editing health, life, and group health insurance content. Having written for magazines and digital publications, she combines research and editorial expertise to create credible, useful content for readers.

Dr Nitin Kumar Gupta

Dr Nitin Kumar Gupta

Reviewed by · SVP – Health Underwriting & Claims at ACKO General Insurance

With 20+ years of experience in digital transformation and growth, he is a leader specialising in health, life, accident, and disability insurance. Backed by an MBBS degree and insurance designations (FLMI, FALU, FLHC, ACS, ARA), he combines expertise with leadership.

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