What a Korean premium-waiver rider comparison should measure
A premium-waiver provision may keep specified Korean insurance coverage in force without some future premiums after a contract-defined illness, diagnosis, or disability is accepted.
The trigger, coverage start, waiting period, reduction rules, and premiums actually waived differ by insurer, product, issue date, main policy, and rider wording.
Some contracts include a waiver automatically, while others charge a separately identifiable rider premium.
This calculator compares the present value of that separately entered rider charge with the present value of premiums avoided under early, base, and late event scenarios.
It also shows the no-event cost, break-even probability threshold, maximum affordable rider charge, latest break-even event month, and waived months needed to recover modeled cost.
It does not estimate disease probability, predict claim approval, rank insurers, or recommend keeping or removing a contract.
Cost
Rider charges paid until waiver begins or the payment term ends.
Benefit
Verified monthly premiums avoided from the first waived month to payment end.
Threshold
Timing, price, and user-assumed probability needed to reach modeled break-even.
Use the right premium-waiver calculator
If the insurer has already accepted or confirmed a waiver, use the remaining premium-waiver value calculator to value the confirmed future payments.
The calculator on this page is a pre-event decision aid for a separately charged rider and user-defined event scenarios.
Comparison of two premium-waiver calculators| Question | This calculator | Remaining-value calculator |
|---|
| Decision point | Before an insured event | After waiver acceptance |
| Main inputs | Rider charge, waiver amount, timing, assumption | Confirmed waived premium and payments remaining |
| Main output | Scenario net value and thresholds | Value of confirmed remaining premiums |
How to collect contract-specific inputs
- Find the exact rider name and monthly charge in the policy schedule, illustration, or latest premium breakdown.
Enter zero only when the insurer confirms that the waiver is built in without a separate charge.
- Read the wording for the insured diagnosis or disability, confirmed-date definition, coverage start, waiting period, reductions, exclusions, and termination events.
- Confirm which main-policy and rider premiums stop after an accepted waiver.
Do not assume that the full current premium is waived.
- Put elapsed policy months and remaining payment months on the same valuation date.
Ask for exact dates when a scenario is close to a waiting-period boundary.
- Use early, base, and late months as sensitivity cases rather than forecasts.
Change the probability assumption only to see how the expected value responds.
Questions to ask the insurer
- What is the rider charge now, and can it change at renewal.
- Which main-policy and rider premiums are waived, including future renewable premiums.
- Which date controls the waiting-period and confirmed-diagnosis test.
- Which exclusions, reductions, repeat-diagnosis rules, or termination events limit waiver.
- Does rider-only removal create a confirmed refund, cost, or change to other coverage.
Calculation method
Monthly cash flows and present value
Annual growth and discount assumptions are converted to effective monthly rates.
Month one is the cash flow one month after today, and each rider charge or waived premium is grown and discounted at its own month.
Published results are rounded to whole Korean won only after the unrounded monthly values are summed.
monthly amount = initial amount × (1 + monthly growth)^(month - 1)
monthly PV = monthly amount ÷ (1 + monthly discount)^month
scenario net PV = removal cost - removal refund + waiver PV - rider-charge PV
Eligibility and first waived month
The calculator adds elapsed policy months to the event month and requires that total to be greater than the entered waiting period.
A one-month start delay means the event-month rider charge is paid and waiver begins the next month.
This month-level convention cannot replace an insurer decision based on exact policy dates and a confirmed diagnosis date.
Break-even probability is a threshold, not a forecast
The threshold solves for the user-assumed event probability that makes expected net present value equal to zero at the base event month.
A 12% result does not say that the insured event has a 12% chance of occurring.
It only gives you a hurdle to compare with an assumption supported outside this calculator.
A result above 100% means the base timing cannot reach expected-value break-even even under a certain-event assumption.
Practical interpretation scenarios
Before renewal or policy review
A small monthly charge can still have a material no-event present value when many payment months remain.
Compare all three timing rows, then assess coverage gaps and future underwriting separately.
When waiver scope is unclear
Run one case with only the confirmed main-policy premium and another with the broader amount the insurer says may qualify.
A wide range is a reason to obtain a written answer, not to use the midpoint as fact.
Near the waiting-period boundary
Events inside the entered waiting period receive zero waiver value.
When the event is within one month of the boundary, exact dates and wording take priority over this monthly model.
When removal has an immediate adjustment
A confirmed refund favors the remove alternative, while a confirmed removal cost favors keeping in this narrow comparison.
Do not enter speculative loss, anxiety, or the value of unrelated coverage in these fields.
Read the output in this order
- Check the four verification boxes first, because an unverified trigger or waiver amount can dominate every later result.
- Read the no-event rider-cost present value as the modeled extra outflow if no qualifying event occurs.
- Compare rider-paid and premium-waived months across early, base, and late timing rows.
- Compare the base-scenario maximum rider charge with the actual separately confirmed charge.
- Use the break-even probability only as a sensitivity hurdle, then examine underwriting, household risk capacity, and coverage gaps outside the model.
Frequently asked questions
What if I cannot find a separate rider charge
The waiver may be built into the main policy or separately visible only in a premium breakdown.
You may enter zero, but leave the verification box unchecked until the insurer confirms which case applies.
Is the waived amount equal to my total premium
Not necessarily.
Renewable or ancillary riders can be outside the waiver, and some premiums may remain due after an accepted event.
What probability should I enter
This calculator supplies no standard probability.
Use values such as 0%, 10%, and 20% only to test sensitivity, and do not treat them as personal medical-risk estimates.
Does a negative net present value mean I should remove the rider
No.
It only means modeled cost exceeds modeled benefit under the entered timing and assumptions; coverage gaps, future underwriting, contract interactions, and household risk capacity remain outside the result.
Official references and limits
Korea's Commercial Act addresses the insurance-contract framework and delivery and explanation of important policy wording, while the Financial Consumer Protection Act addresses explanation of material financial-product terms.
Those laws do not create one universal diagnosis, disability percentage, waiting period, or waiver percentage for every rider.
The links and current-law status below were checked on 2 September 2026, but your issued wording and current insurer confirmation remain the source for contract inputs.
Before changing a contract
Do not read the output as claim eligibility, medical advice, legal advice, product ranking, or a keep-or-cancel instruction.
Check coverage gaps, replacement underwriting and premiums, surrender effects, taxes, and interactions with the rest of the contract before taking action.
Compare three timings with verified policy values
Confirm the separate charge and premiums actually waived, then enter early, base, and late event scenarios.
Treat any unchecked contract item as the next question to ask the insurer before making a decision.