How to Port Your Health Insurance in India — Step by Step

Health insurance portability in India is the right of a policyholder to switch from one IRDAI-licensed insurer to another at renewal while preserving the credit accumulated under the existing policy for waiting periods, no-claim bonuses, and continuity of cover. It was introduced through the IRDAI Health Insurance Portability framework that took effect in October 2011 and has been reinforced by subsequent IRDAI master circulars on health insurance.

Before portability existed, switching insurers meant restarting every waiting clock from zero — a 36-month pre-existing-disease wait already served on an old policy was simply lost when you moved. Portability changed this: an insured who has completed two years of pre-existing-disease waiting on the old policy carries those two years across to the new insurer and only has to wait the remaining year. Continuity credit transforms what was once a punitive switching cost into a manageable administrative process.

This article explains what portability actually preserves, why people port, the 45-day window for filing the portability proposal form, the receiving insurer's underwriting rights, the document checklist, the realistic timeline, and a worked example of a 12-year-old policy being ported with full continuity credit. It also addresses one of the most expensive misunderstandings in Indian health insurance — the assumption that lapsing the old policy and rebuying with another insurer is equivalent to porting.

1. Why Policyholders Port

Portability is driven by four common triggers. Premium hike at renewal — most insurers re-rate premium by age band every five years, and the jump from the 45-50 to the 50-55 band can be 30-40%; a portability evaluation often surfaces a competing product at a meaningfully lower premium for the same age and sum insured. Service issues — repeated TPA delays, claim disputes, or a perception that pre-authorisation requests are taking too long. Network changes — your preferred hospital exits the existing insurer's network, or a new tertiary-care hospital near you is empanelled only with another insurer. Family member age-out — a family floater that originally accommodated children may need restructuring once a child turns 25 (the typical maximum age for dependent children) and needs an individual policy.

Portability is also used to upgrade product features that were not available when the original policy was bought — for example, a policy with a 1% room-rent sub-limit can be ported to one without sub-limits, or an older product with limited day-care procedures can be ported to a modern policy covering 300+ day-care procedures.

2. What Continuity Credit Actually Preserves

Continuity credit, the technical heart of portability, preserves the time you have already served on three IRDAI-recognised waiting clocks plus the no-claim bonus you have earned. The receiving insurer must give credit for:

• The 30-day initial waiting period — fully waived on the new policy if the old policy completed its first year.
• The pre-existing-disease (PED) waiting period — IRDAI caps PED waits at 36 months. Time served on the old policy is credited against the new policy's PED clock; if you served 24 months on the old, you have only 12 months remaining on the new.
• Specific-disease / named-procedure waiting periods (cataract, hernia, joint replacement, piles, gallstones etc.) — typically 24-48 months. Time served carries across.
• No-claim bonus accumulated on the old policy, up to the cap on the new policy. If your old policy delivered a 50% NCB and the new policy's NCB cap is 100%, the 50% transfers in; if the new policy's cap is 25%, only 25% is recognised.
• Sum insured — continuity credit applies up to the sum insured of the old policy. Any increase in sum insured at the time of porting is treated, in part, as fresh cover and the additional layer carries its own waiting periods.

3. The 45-Day Window

Portability has one inflexible deadline: the proposal form for the new policy must be submitted to the receiving insurer at least 45 days before the existing policy's renewal date. This window is set by IRDAI. Submitting later than the 45-day mark is grounds for the receiving insurer to refuse to process the portability request — your existing policy lapses, and you lose continuity credit even if the new insurer is willing to issue a fresh policy.

Practically, this means starting the portability evaluation process at least 60 days before your existing policy renews, and ideally 90 days before, to leave time for hospital network checks, comparing policy schedules in detail, and gathering the document set. If the renewal date passes during processing because the new insurer is taking time to underwrite, the existing policy may be renewed for a short term to preserve continuity — a step the IRDAI framework explicitly contemplates.

4. The Receiving Insurer's Underwriting Rights

Portability is not an automatic right to a policy on terms identical to your existing one. The receiving insurer is entitled to underwrite the proposal afresh. Three outcomes are possible:

• Acceptance on standard terms — the new insurer issues the policy at its standard age-band premium with continuity credit applied.
• Acceptance on loaded terms — the new insurer issues the policy with a premium loading (often 25-100%) or a permanent exclusion on a specific condition disclosed in the medical history.
• Decline — the new insurer refuses to underwrite the proposal, typically based on the medical history disclosed or on its own underwriting risk-appetite for the age and city. The existing insurer is required to renew the existing policy at its normal terms — declining a portability application does not give the existing insurer grounds to refuse renewal.

The receiving insurer must communicate its underwriting decision within 15 days of receiving the complete portability proposal form and supporting documents. Silence beyond 15 days is treated, under IRDAI rules, as deemed acceptance on the terms originally proposed.

5. Document Checklist

Portability requires more documentation than a normal renewal because the new insurer is reconstructing the history of the existing policy. The standard set is:

1. The portability proposal form (a separate IRDAI-mandated form, distinct from the new insurer's standard proposal form, available on the new insurer's website).
2. The new insurer's standard proposal form, fully completed including the medical questionnaire — every pre-existing condition must be disclosed.
3. The existing policy schedule for the current year and, ideally, the previous two years, showing sum insured, premium paid, no-claim bonus accrued, and any endorsements.
4. Premium receipts for the previous three policy years (or the full life of the policy, if shorter).
5. Claim history — a written confirmation from the existing insurer or its TPA listing every claim made on the policy with dates, sum claimed, and sum settled. Many insurers provide this on request within 7-10 working days.
6. Discharge summaries and final hospital bills for any past claims, if available.
7. KYC documents — Aadhaar / PAN / passport-size photo / address proof — as required by the receiving insurer.
8. Medical reports if the receiving insurer requests them post-underwriting (typical for ages above 45 or when a serious pre-existing condition is disclosed).

6. The Realistic Timeline

End to end, a clean portability case takes 30-45 days. Days 1-7 are evaluation — comparing policy schedules, network hospitals, sub-limits, and premium for the receiving insurer's product. Days 7-14 cover document gathering, including obtaining the claim-history letter from the existing insurer. Day 14 is when the portability proposal form is submitted to the receiving insurer (this must be at least 45 days before existing-policy renewal). Days 14-29 are the receiving insurer's underwriting window; medical reports may be requested in this period. Day 29 onwards is policy issuance, with the new policy beginning on the day after the existing policy ends, ensuring no day of uncovered exposure.

7. Worked Example — A 12-Year-Old Policy Being Ported

A 52-year-old policyholder in a metro city has held an individual indemnity policy for 12 years with a sum insured that started at ₹5 lakh and grew to ₹8 lakh through accrued NCB. He has a disclosed pre-existing condition of hypertension (declared at the time of original purchase 12 years ago) and has filed two claims totalling ₹4.6 lakh over the policy life. At renewal, his existing insurer's premium has jumped to ₹38,000 driven by the age-band re-rating; a comparable product from another insurer is quoted at ₹26,000.

On porting, continuity credit produces the following result. The 30-day initial wait is fully waived. The 36-month PED wait was completed long ago — fully credited; hypertension cover continues from day one of the new policy. The 24-month specific-disease wait was completed long ago — fully credited. The accrued 60% NCB transfers in subject to the new policy's cap (assume the new policy caps NCB at 50% — only 50% is recognised, taking effective sum insured to ₹7.5 lakh). The receiving insurer underwrites the proposal, requests a fresh blood-pressure report given age 52 and the disclosed hypertension, and accepts the proposal at standard age-band premium with no loading. The new policy starts the day after the old policy's renewal date; total elapsed time from evaluation to issuance is 38 days.

If the same policyholder had instead lapsed the old policy and bought a fresh policy with the new insurer, all three waiting clocks would have restarted from zero — hypertension would have been excluded for 36 months, the specific-disease list would have been excluded for 24 months, and the NCB would have started over at zero. The educational cost of choosing 'lapse and rebuy' over 'port' here is roughly three years of effective protection for hypertension-related claims and a permanent reduction in sum insured ladder.

8. Common Misconceptions

A common misconception is 'I'll just lapse my old policy and buy a new one with another insurer'. This is the single most costly portability mistake. Lapsing forfeits all continuity credit — every waiting period restarts from zero on the new policy, the NCB is lost, and any condition that was already past its PED waiting clock is again excluded for up to 36 months on the fresh policy. Always file the portability proposal form within the 45-day window rather than letting the policy lapse.

A second misconception is that the existing insurer can charge a portability fee or refuse to release the policy. Under IRDAI rules, the existing insurer cannot levy a portability charge and is required to provide the claim-history letter and policy details on request — a refusal can be escalated to the IRDAI Bima Bharosa grievance portal.

A third misconception is that portability allows the policyholder to dictate terms to the receiving insurer. It does not. The receiving insurer retains full underwriting discretion — it can decline, load, or accept on its standard terms. Continuity credit only applies once the receiving insurer has agreed to issue the policy.

A fourth misconception is that portability is annual — that the policyholder can move insurers every year almost frictionlessly. In practice, every port triggers fresh underwriting, and a pattern of frequent porting can lead to declines as receiving insurers grow cautious. Most policyholders port at most once every several years and only when there is a clear premium, network, or service reason to do so.

9. Practical Takeaways

1. Start the portability evaluation 60-90 days before the existing policy renews; the proposal form must reach the receiving insurer at least 45 days before renewal.
2. Get the claim-history letter from the existing insurer in writing — this is the single document that takes longest to obtain and most often delays the timeline.
3. Disclose every pre-existing condition on the new insurer's medical questionnaire. Non-disclosure during portability invalidates continuity credit and is a leading cause of claim rejection on the new policy.
4. Confirm the new insurer's network hospital list near your home and your usual workplace before signing — portability is most useful when it actually expands your usable cashless network.
5. Read the new policy schedule for sub-limits, room-rent caps, and named-procedure exclusions — these are not part of continuity credit and can change between insurers.
6. Ensure the new policy's effective date is the day after the old policy ends — even a single day of gap can break continuity.
7. Keep the old policy schedule, premium receipts, and claim records for at least three years after porting in case the new insurer requests verification during a future claim.

Next Steps

If you are unfamiliar with the underlying mechanics that continuity credit preserves, the pillar article 'What is Health Insurance in India?' explains sum insured, waiting periods, and no-claim bonus in detail. The 'Cashless vs Reimbursement' explainer in the health cluster is useful for understanding the network-hospital change that often motivates a port. If you are scaling cover at the same time as porting, our companion article on super top-ups walks through the deductible mechanics. The glossary covers 'portability', 'continuity credit', 'pre-existing disease', and 'no-claim bonus' with worked definitions, and our health insurance adequacy calculator gives an indicative size-up before you finalise the new sum insured.