Group Health Insurance glossary
Endorsement (Mid-Term Additions/Deletions)
An endorsement is a formal amendment to a live group health policy that records a mid-term change — most often adding a new joiner, deleting an exiting employee, or correcting a member’s details. Insurers require these within a set window, commonly by the 15th of the following month, and adjust premium pro-rata for the days remaining. Only an issued endorsement puts a new employee on cover.
Report every month’s joiners and leavers by the insurer cut-off — only an issued endorsement puts a new employee on live cover.
How endorsements work in a group plan
A group policy is issued once, but the workforce underneath it changes every month. An endorsement is how those changes are written back into the contract. When a new employee joins, the insurer accepts the addition on payment of an additional pro-rata premium — usually drawn from the employer’s CD (Cash Deposit) balance — and issues an endorsement confirming they are now covered.
When an employee resigns, retires or is terminated, they and their dependents are deleted from the policy, effective from the exit date or the last day of that month at the insurer’s option, and the unused pro-rata premium is refunded. The same mechanism handles non-headcount changes too — a corrected date of birth, a newborn added, a revised sum insured.
Timing is the part employers underestimate. Insurers set a monthly cut-off for reporting — often the 15th for the previous month’s activity — and process the endorsement within 15 to 30 days. Miss the window and a genuine new joiner may not appear on the policy when they need to claim.
A worked example (mid-term addition)
An employee joins on 01-Oct-2026, halfway through a policy year that runs to 31-Mar-2027. The annual per-member premium is ₹8,000, so the pro-rata charge for the remaining six months is ₹4,000.
Annual premium
Days remaining
Pro-rata endorsement premium
The ₹4,000 is deducted from the CD balance and the endorsement is issued, putting the new joiner on live cover from 01-Oct-2026. Had HR reported the joiner after the monthly cut-off, cover could have started later than the joining date.
Why endorsements matter for employers
Endorsements are where a benefit promise becomes real cover. Telling a new hire they are insured means nothing until the addition endorsement is issued — and the gap between the two is exactly when a hospital visit turns into a rejected claim and a hard conversation with HR.
They are also a compliance and cost discipline. Reporting additions and deletions inside the insurer’s window keeps the policy list matched to your actual headcount, so you are not paying for leavers or leaving joiners exposed. Sloppy endorsement hygiene shows up later as reconciliation headaches at renewal.
The practical takeaway: treat the monthly endorsement run as a fixed calendar event, not an ad-hoc task. A predictable cadence is what keeps cover continuous as your team grows and changes.
How Onsurity handles endorsements
Onsurity turns the endorsement run into a few clicks. HR adds a joiner or removes a leaver on the TeamSure dashboard, the pro-rata premium is netted against the CD balance, and the change flows to the insurer without a paper form or an email thread.
Because additions are processed digitally and many plans carry Day-1 cover, a new joiner is live from their start date with no fresh waiting period — and HR can see, per member, exactly when the endorsement took effect.
That visibility closes the classic gap. Instead of discovering at a hospital desk that someone was never added, employers get a real-time member list and a clean audit trail of every mid-term change through the year.
Frequently asked questions
By when must I report additions and deletions?
Most insurers require the previous month’s changes to reach them by a cut-off — commonly the 15th of the current month — and process the endorsement within 15 to 30 days. Reporting on time is what prevents claim disputes: an employee who joined but was not yet endorsed can have a genuine claim held up.
Is extra premium charged for a mid-term addition?
Yes. A new joiner is added on payment of additional pro-rata premium for the days left in the policy year, and an endorsement confirming the addition is issued. For a deletion, the unused pro-rata premium of the exiting employee is usually refunded, so the net cost tracks the actual days each person was covered.
Can a new joiner claim immediately after an endorsement?
Once the addition endorsement is issued and the person is on the live policy, they can claim subject to the plan’s terms. On group plans with Day-1 cover there is no fresh waiting period for the new joiner, but the endorsement must be processed first — cover does not backdate itself informally.
What changes need an endorsement, besides add and delete?
Any material amendment to the live policy: correcting a member’s name or date of birth, adding a newborn or newly married spouse, revising the sum insured, or updating nominee details. Each is recorded on an endorsement so the policy document and the insurer’s records stay in sync with reality.
What happens to an employee who leaves the company?
The exiting employee and their dependents are deleted from the policy, effective from the date of exit or the last day of that month, at the insurer’s option. After the deletion endorsement, they and their family are no longer covered under the group policy, and any unused pro-rata premium is refunded.
Tired of chasing add/delete paperwork?
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