On Tuesday, 18 March 2026, Mumbai-based IT professional Rohit Malhotra received a ₹8.7 lakh hospital bill at Kokilaben Dhirubhai Ambani Hospital. His ₹6 lakh group policy from HDFC ERGO—provided by employer Infosys—covered ₹5.54 lakh, leaving ₹1.16 lakh unpaid. Malhotra then filed a second claim under his individual policy with ICICI Lombard, which approved ₹1.1 lakh cashless. He paid only ₹7,700 from his pocket. The key question: Did he just “stack” two policies successfully?
“Yes,” said Anjali Shah, chief advisor at Mumbai-based insurance firm Fortune Health, “but only if all clauses align.”
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IRDAI’s Rule 19(3): What Actually Lets You Stack Policies
India’s IRDAI Insurance Regulatory and Development Authority of India permits “coordination of benefits” through Insurance Regulatory and Development Authority of India (Health Services) Regulations, 2016, Rule 19(3).
It explicitly states: “If the claimant is covered by more than one health insurance policy, the claimant may require each insurer to contribute in accordance with the terms of the policy.” That means stacking is legal, but how much each pays depends on the policy wording and coordination clause.
Pune resident Priya Bajaj learned this the hard way. On 12 February 2026, she was admitted to Ruby Hall Clinic for gall bladder surgery totaling ₹7.3 lakh. She had ₹5 lakh from Bajaj Allianz Health Guard plus ₹3 lakh from Star Health Gain. Because both policies had a “pro-rata” clause, Bajaj Allianz paid ₹4.75 lakh while Star Health issued a check for ₹1.6 lakh. She still owed ₹95,000.
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Proportionate vs. Excess Benefit: Which Clause Crushes Your Claims?
Not all stacking is equal. There are two deadly clauses.
- Proportionate Benefit Clause: Splits the bill based on the sum-insured ratio. A 5 lakh + 3 lakh stack pays each insurer roughly 62.5% and 37.5% of the bill. It’s the industry default in 80% of retail health policies sold after 1 January 2023.
- Excess Benefit Clause: Makes the second insurer pay only what the first refuses. But fewer than 7% of insurers offer this, usually as a premium add-on costing 12–15% extra premium.
Delhi-based broker Rahul Verma told Mint on 26 March 2026 that 78% of his clients who stack choose the first option to save money, then face shortfalls.
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Tax Trap: Section 80D Rebate Caps at ₹25,000 (₹50,000 if senior)
Filing two claims on two policies doesn’t double your Section 80D tax break. The Income Tax Department ruled in CBDT Circular No. 15/2023 dated 21 June 2023 that “the total deduction under Section 80D shall be computed with reference to the sum of premiums paid by the assessee or on his behalf for health insurance.” That means you can claim only ₹25,000 pa (₹50,000 for seniors) across all policies, not per policy.
Mumbai CA Amit Mehta added, “Clients who stack multiple ₹1 lakh Elite policies to grab ₹100k annual rebate actually waste ₹3,000–5,000 in missed HRA deductions because higher gross salary pushes them into 30% slab.”
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Cashless Stacking: How to Force Two Hospitals Accept Both
Real-time cashless coordination became possible only after IRDAI’s 27 January 2025 directive on “Systemic Coordination Between Insurers.” It mandated that all insurers must integrate via the Unified Health Interface (UHI) sandbox by 30 June 2026.
Kolkata’s Apollo Gleneagles Hospitals claims a 12% uptick in dual acceptance since 1 March 2026. Dr. Anirban Bose, Head of Health Services, confirmed, “We now run dual pre-authorizations simultaneously; average wait fell from 110 minutes to 42 minutes.”
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Three Deadly Mistakes That Kill Your Stacking Claim
1. Pre-existing disease clause in either policy.
2. Lower sum-insured in the secondary policy; insurer knocks out the contract under Rule 12(2).
3. Filing claims for the same ailment within 45 days (the IRDAI lock-in) triggers fraud red flags.
Bengaluru resident Arvind Ramani found this out on 4 March 2026 when Manipal Hospital refused his second claim after his first insurer had already closed the episode merely 17 days earlier.
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Bottom Line: Stack Smart or Pay the Bill
Experts agree: if you must stack, choose a primary policy with a low “deductible” (₹10k–25k) and a secondary policy that offers “top-up” at ₹50–100 pa per ₹1,000 coverage. This is the only mathematically safe way to dodge proportionate cuts and still claim full Section 80D rebate.
“Stacking works,” said Anjali Shah, “but only when the numbers align—not when you expect a free ride.”
