Group Health Insurance glossary
Health Insurance Portability
Health insurance portability is the IRDAI-backed right to move a policy from one insurer or plan to another while keeping the waiting-period credit and continuity benefits already earned. It means an employee does not restart the clock on pre-existing-disease waits when the cover changes.

Portability protects time, not just cover. A correctly executed port carries an employee’s served waiting-period credit across to the new insurer — so a pre-existing condition already waited out stays covered, provided the port is raised inside the renewal window.
How portability works in a group/employer plan
The value of portability is time. Health cover carries waiting periods — often two to four years for a pre-existing disease — before certain claims become payable. Portability requires the incoming insurer to credit the time an employee has already served, so a member who has waited out three of a four-year clause carries that credit across rather than starting again from zero.
For an employer, portability surfaces at two moments. The first is at renewal, when you move the whole group to a new insurer to improve price or service: continuity of waiting periods for existing members is negotiated as part of the placement, so accrued credits are not quietly wiped. The second is on exit, when a departing employee ports from the group plan to an individual or family policy and carries the credit they built up while employed.
Portability preserves accrued benefits; it does not erase honest medical history. The new insurer can still underwrite and price the risk, and can decline where disclosure is incomplete. What it cannot do is treat a long-served member as a brand-new one and reset a waiting period the member has already earned their way out of.
A worked example (ported pre-existing-disease cover)
An employee has held cover for 3 years against a plan whose pre-existing-disease waiting period is 4 years. The employer moves the group to a new insurer at renewal. In year 4, that employee needs treatment for the pre-existing condition, with an approved claim of ₹2,00,000 on a ₹5,00,000 sum insured.
Waiting period credited
With portability — claim paid
Without portability — employee pays
With portability the served three years carry across, the four-year clause is satisfied in year 4, and the ₹2,00,000 claim is admissible. Without it, the new insurer would treat the member as fresh, restart the waiting period, and the same ₹2,00,000 would land on the employee out of pocket.
Why portability matters for employers
Portability is what stops a change of insurer from silently downgrading the benefit. You might switch to cut premium or fix poor claims service, but if existing members lose their served waiting periods in the move, you have handed long-tenured employees a worse deal at exactly the moment they are most likely to claim. Protecting continuity keeps the same sum insured genuinely usable, not just nominally unchanged.
It also shapes the leaving experience. An employee who can port from the group plan to an individual policy without restarting waiting periods leaves with their health cover intact — a tangible goodwill signal that costs the employer nothing but a clean, well-timed handover. It is a small detail that departing staff and their families remember.
The risk is timing. Portability is bound by strict windows, and a lapse in cover breaks the continuity chain the whole mechanism depends on. Whoever owns your renewal needs to raise the port well ahead of the expiry date, or the credit an employee spent years accruing can be lost to a missed deadline.
How Onsurity handles portability
Onsurity treats continuity as part of the placement, not an afterthought. When a group moves insurer, the waiting-period credits existing members have accrued are carried into the negotiation up front, so the switch improves price or service without quietly resetting the clock on a pre-existing condition your team has already waited out. Day-1 cover options mean eligible benefits stay live from the joining date, with no fresh waiting period on covered claims.
Because settlement runs cashless at 10,000+ network hospitals, a ported member who needs treatment is paid straight at the hospital rather than left to fund and reclaim — the continuity they kept actually shows up at the billing desk. The Good Doctors concierge, staffed by real doctors, walks members and their families through pre-authorisation and discharge so the cover they carried across is easy to use, not just easy to describe.
HR tracks every member’s cover, sum insured and claims status in one place on the TeamSure dashboard, and the team flags port windows around renewals and exits so accrued credits are protected before a deadline can quietly erase them.
Frequently asked questions
What exactly can you carry over when you port a policy?
The core benefit is credit for the waiting periods already served — for pre-existing diseases and specified ailments — plus any no-claim continuity earned. The new insurer must honour the time already elapsed, so an employee does not restart the clock on cover they have effectively already waited out.
Does portability apply to group employer policies?
Portability primarily governs moves between retail policies and between a group plan and an individual policy on exit. When you change insurer for the group itself, continuity of waiting periods for existing members is negotiated as part of the placement, so accrued credits are not silently lost at renewal.
Can an employee port their group cover when they leave the company?
Yes. On exit, an employee can port from the employer group plan to an individual or family policy with the same or another insurer, carrying the waiting-period credit they built up while employed. This has to be initiated close to their last day of cover, within the insurer-defined window.
Does porting reset the sum insured or the waiting period?
No. That is the whole point — a correctly executed port preserves the accrued waiting period and lets the member continue at the same or higher sum insured. The credited time carries across, so a pre-existing condition already waited out at the old insurer stays covered at the new one.
How early should porting be started?
Well before the renewal date. Portability requests are time-bound — typically raised 45 to 60 days before the existing policy expires — so the incoming insurer can underwrite and confirm continuity. Leaving it late risks a coverage gap that itself breaks the continuity chain.
Switching insurers without losing continuity?
Get a group health quote and see how Onsurity protects accrued waiting periods and sum insured when you move your team’s cover.
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