# Co-pay vs Deductible in Health Insurance

> Co-pay vs deductible in health insurance: how each cuts your claim, IRDAI definitions, a worked comparison on small and large bills, and which to choose.
- **Published**: 2026-10-18
- **Modified**: 2026-10-18
- **Category**: health-insurance
- **URL**: https://www.tldr.money/articles/health-insurance/co-pay-vs-deductible

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Both clauses make you share the cost of a claim, and both lower the premium. But **co-pay vs deductible** is not a coin toss: they behave very differently as the bill grows. This guide, part of our [health insurance in India](/health-insurance) hub, shows how.

## What a co-pay is

IRDAI's standard definition: a co-payment is a cost-sharing requirement under which "the policyholder/insured will bear a specified percentage of the admissible claims amount". It does not reduce the sum insured.

So with a 20% co-pay, you pay 20% of every admissible claim, however large. Co-pays are common in:

- plans for senior citizens, sometimes compulsory above a certain entry age,
- IRDAI's standard Arogya Sanjeevani policy, which carries a 5% co-pay,
- some plans when you are treated in a costlier city than your premium zone, and
- some plans for treatment at non-network hospitals.

## What a deductible is

IRDAI's standard definition: a deductible is a cost-sharing requirement under which the insurer "will not be liable for a specified rupee amount" before any benefits are payable. It also does not reduce the sum insured. The insurer must say whether it applies **per year, per life or per event**.

Deductibles are the core of [top-up and super top-up plans](/articles/health-insurance/super-top-up-vs-top-up), and some base plans offer an optional deductible in exchange for a lower premium.

## Co-pay vs deductible: worked comparison

Compare a policy with a **20% co-pay** against one with a **Rs 1 lakh annual deductible**. Both have a Rs 10 lakh sum insured. Amounts are the admissible claim after other deductions.

| Admissible claim | You pay with 20% co-pay | You pay with Rs 1 lakh deductible |
|---|---|---|
| Rs 50,000 | Rs 10,000 | Rs 50,000 |
| Rs 1 lakh | Rs 20,000 | Rs 1 lakh |
| Rs 4 lakh | Rs 80,000 | Rs 1 lakh |
| Rs 5 lakh | Rs 1 lakh | Rs 1 lakh |
| Rs 10 lakh | Rs 2 lakh | Rs 1 lakh |

The break-even here is a Rs 5 lakh claim. Below it, the co-pay costs you less. Above it, the deductible does, and the gap keeps widening because a co-pay has no ceiling.

**Two claims in a year:** if you have two Rs 50,000 claims, the co-pay costs you Rs 20,000 in total. The annual deductible costs Rs 1 lakh, because both claims fall inside it. With a per-event deductible, it would also be Rs 1 lakh, as each claim is under the deductible.

## How co-pay and other deductions stack

Because a co-pay applies to the **admissible** amount, other deductions come off first. Say you have a Rs 3 lakh bill with a 20% co-pay, and Rs 40,000 is cut for room rent and non-payable items:

- Admissible claim: Rs 3,00,000 − Rs 40,000 = Rs 2,60,000
- Co-pay: 20% x Rs 2,60,000 = Rs 52,000
- Insurer pays Rs 2,08,000. **You pay Rs 92,000** (Rs 40,000 + Rs 52,000).

The room rent part is explained in [room rent and proportionate deduction](/articles/health-insurance/room-rent-capping-proportionate-deduction).

## Which should you choose?

**A deductible makes sense if:**

- you have savings, or employer cover, to absorb the deductible,
- you mainly want protection against a big bill, and
- you want a lower premium without open-ended risk.

**A co-pay can make sense if:**

- you expect frequent smaller claims,
- the premium saving is large, and
- the policy caps the co-pay or limits it to certain situations, such as non-network hospitals.

**Avoid both if you can afford to,** especially for older parents, whose claims tend to be larger. Plans without co-pay cost more, but a 20% share of a Rs 8 lakh bill is Rs 1.6 lakh. See [health insurance for parents](/articles/health-insurance/health-insurance-for-parents).

## Questions to ask before you buy

1. Is the co-pay compulsory, age-linked, zone-linked or limited to non-network hospitals?
2. Is there a co-pay waiver option, and what does it cost?
3. Does the deductible apply per year or per claim, and per person or per family?
4. Can an employer group policy or a base policy pay the deductible?

Use the [health insurance buying checklist](/articles/health-insurance/health-insurance-checklist) to compare the rest of the terms. The glossary has short definitions of [co-pay](/glossary/co-pay) and [deductible](/glossary/deductible).

## Sources

- IRDAI, Master Circular on Standardization of Health Insurance Products, 22 Jul 2020 (standard definitions of co-payment and deductible; Arogya Sanjeevani terms): https://irdai.gov.in/documents/37343/366029/Master+Circular+on+Standardization+of+Health+Insurance+Products.pdf/40548736-71a8-1b76-e28d-0df899407e1e
- IRDAI (Insurance Products) Regulations, 2024, Schedule III: https://irdai.gov.in/consolidated-gazette-notified-regulations
- IRDAI, Master Circular on Health Insurance Business, 29 May 2024: https://irdai.gov.in/en/document-detail?documentId=4942918
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