Read a Korean business liability coverage gap in the correct order
Business liability insurance can respond when a Korean business becomes legally liable for injury or damage to a third party during insured operations.
A schedule headed business liability does not automatically cover every premises accident, employee operation, entrusted item, fire, explosion, water leak, parking incident, or loading loss.
The named insured, address, described operations, endorsements, territory, policy period, exclusions, deductible, and sublimits all matter.
Korea-specific planning model
This page uses KRW and Korean law verified on August 7, 2026.
It does not quote insurance, decide negligence or legal liability, approve a claim, or certify compulsory insurance compliance.
Enter values copied from the actual policy schedule or quote and treat every payout as a stress-test candidate until the insurer confirms it.
What the calculator includes and separates
Third-party liability scenario
- Bodily injury to customers, visitors, or other third parties
- Ordinary damage to another party’s building, equipment, or inventory
- Damage to property held for storage, cleaning, repair, parking, or work
- Third-party business interruption, substitute premises, or loss of use
- Legal, expert, investigation, and other defense or dispute cost
Costs kept outside the basic payout
- Repair of the business’s own premises, equipment, or stock
- Repeating defective or incomplete work
- Employee injury reviewed under workers’ compensation or employer liability
- Fines, administrative penalties, and enhanced contractual liability
- Pollution, professional, cyber, product, and other separately endorsed exposures
A separately modeled cost is not declared uninsurable under every contract.
The calculator simply refuses to blend it into the basic business-liability payout without a separate policy or endorsement check.
This keeps an apparently high protection ratio from hiding own-property, rework, employee, or penalty exposure.
Four items to find on the schedule first
1. Insured operation and endorsements
Confirm whether the policy covers the premises, contractor work, parking, entrusted property, plumbing, or other operation linked to the scenario. The same industry label can still conceal materially different insured work.
2. Category sublimits
Find separate bodily injury, ordinary property, entrusted-property, and interruption limits. Ask for the actual usable amount when a per-person limit also applies or several categories share one limit.
3. Deductible and defense treatment
Check whether the deductible applies once per occurrence or separately by coverage. Defense cost may sit inside the limit, outside it, under a separate cap, or behind a prior-consent condition.
4. Occurrence and policy-period limits
A sufficient per-occurrence limit can still be defeated by an aggregate already reduced by earlier claims. Confirm whether paid amounts, reserves, or related incidents consume the same aggregate.
Calculation sequence
- Classify the loss. Bodily injury, ordinary property, entrusted property, third-party interruption, defense cost, and separate business costs remain distinct.
- Confirm the coverage condition. If the cause, operation, or location is marked uncovered or unconfirmed, third-party liability loss plus defense cost becomes a full coverage gap and the modeled payout is zero.
- Apply each category sublimit. The eligible amount is the lower of the entered loss and entered sublimit. The excess is shown as a category gap.
- Apply one per-occurrence deductible. The deduction cannot exceed eligible indemnity, so the model never creates a negative payout.
- Apply the combined occurrence limit. Defense cost selected inside the limit joins the indemnity. Outside-limit defense is shown as a candidate separate payment, while unconfirmed defense remains with the business.
- Apply the remaining policy-period aggregate. The model subtracts prior aggregate use, then limits the first occurrence and the entered count of repeated incidents.
Simplified formulas
Eligible indemnity = Σ min(category loss, category sublimit)
Indemnity after deductible = max(eligible indemnity − one deductible, 0)
First payout = min(occurrence-limited amount, aggregate − prior use) + candidate outside-limit defense
Worked KRW example
The default scenario enters KRW 30,000,000 of bodily injury, KRW 40,000,000 of ordinary property damage, KRW 15,000,000 of entrusted-property damage, KRW 10,000,000 of third-party interruption, and KRW 5,000,000 of defense cost.
It also separates KRW 8,000,000 of own-property or rework cost and KRW 2,000,000 of fines or enhanced contractual exposure.
Third-party liability loss is therefore KRW 95,000,000 and total modeled loss per occurrence is KRW 110,000,000.
Entrusted-property sublimit
KRW 0
The full KRW 15,000,000 entrusted-property loss remains a sublimit gap.
Occurrence-limit subject amount
KRW 84,000,000
Eligible indemnity is KRW 80,000,000. After a KRW 1,000,000 deductible, KRW 5,000,000 of inside-limit defense produces KRW 84,000,000.
First-occurrence payout
KRW 84,000,000
The amount is below both the KRW 100,000,000 occurrence limit and the KRW 150,000,000 aggregate remaining after prior use.
First retained cost
KRW 26,000,000
This includes the sublimit gap, deductible, own property or rework, and fines or contractual exposure.
Two-occurrence payout
KRW 150,000,000
Two occurrences create KRW 168,000,000 of aggregate-subject claims, capped by the remaining KRW 150,000,000 aggregate.
Two-occurrence retained cost
KRW 70,000,000
Total modeled loss is KRW 220,000,000 and the modeled payout is KRW 150,000,000.
The resulting protection ratio is 68.2% of total modeled loss.
This is neither a claim probability nor proof that coverage is adequate.
It is a comparison measure that reveals whether adding entrusted-property cover, restoring the aggregate, or changing another entered term closes the identified gap.
Deductible capacity and modeled limits
A higher deductible may change a quote, but it can also compete with payroll, rent, tax, and supplier payments immediately after a claim.
Available liquidity equals entered liquid funds minus the protected operating reserve, floored at zero.
The annual retention budget is divided by the repeated-occurrence count, and the lower of that amount, available liquidity, and third-party liability loss becomes raw deductible capacity.
The calculator rounds this capacity down to KRW 100,000.
Default capacity result
KRW 50,000,000 of liquidity minus a KRW 35,000,000 reserve leaves KRW 15,000,000 available.
A KRW 6,000,000 annual retention budget divided across two incidents is KRW 3,000,000 per occurrence, so the modeled deductible ceiling is KRW 3,000,000.
Third-party liability of KRW 95,000,000 minus that retention plus KRW 5,000,000 of inside-limit defense creates a KRW 97,000,000 limit subject amount.
Rounded to KRW 10,000,000 increments, the modeled occurrence guide is KRW 100,000,000 and the aggregate guide including KRW 50,000,000 already used is KRW 250,000,000.
These modeled limits are not statutory minima, insurer recommendations, or market standards.
They only round the entered maximum-loss and recurrence scenario and do not replace a per-person limit, shared sublimit, compulsory insurance requirement, premium quote, or larger stress case.
Practical business scenarios
Restaurant or café
Separate a slip-and-fall bodily injury from property and interruption loss caused by food, fire, explosion, or escaped water. Confirm any multi-use business fire-liability certificate separately from the general business-liability schedule.
Cleaning, repair, beauty, or other service business
Property handed over for cleaning, repair, parking, or treatment can face a custody or control exclusion. Enter a zero entrusted-property sublimit when no endorsement or usable amount is confirmed.
Office, academy, or retail premises
Distinguish visitor injury and employee operations from repair of the tenant’s or owner’s own premises. The calculator does not allocate responsibility among an owner, occupier, manager, contractor, or tenant.
Warehouse, parking, and loading operation
Separate stored goods, entrusted vehicles, and surrounding third-party property damaged during handling. Verify the described operation and any parking, entrusted-property, or contractor endorsement.
Korean legal framework verified for 2026
Civil Act liability boundary
The current Korean Civil Act, law ID 001706 and MST 284415, took effect on March 17, 2026.
Article 750 addresses general tort liability, Article 756 addresses an employer’s liability for an employee’s conduct in the course of work, and Article 758 addresses an occupier’s or owner’s liability for defects in a structure.
The calculator does not decide fault, course of employment, structural defect, causation, defenses, or contribution.
Commercial Act liability insurance
The current Korean Commercial Act, law ID 001702 and MST 272919, took effect on July 23, 2026.
Article 719 addresses liability insurers, Article 720 addresses necessary defense cost spent against third-party claims, and Article 724 addresses a harmed third party’s direct claim within the insured amount.
The Act does not provide one universal business-liability limit, sublimit, or deductible for every industry.
Disaster-vulnerable facilities
Article 76-5 of the Disaster and Safety Management Framework Act, law ID 009640 and MST 282883, and Article 84-6 of its Enforcement Decree, law ID 009708 and MST 288259, took effect on July 22, 2026.
A facility prescribed by the Decree may need insurance or mutual aid for third-party life, bodily injury, and property loss caused by fire, collapse, or explosion.
Facility classification and the owner, occupier, or manager relationship must be checked separately.
Multi-use business fire liability
Article 13-2 of the Special Act on the Safety Control of Publicly Used Establishments, law ID 010235 and MST 247231, requires qualifying operators to carry fire and explosion liability insurance.
Another insurance product can contain the required cover, but a general business-liability title alone does not prove compliance.
Confirm the establishment classification, certificate, and statutory wording with the fire authority and insurer.
Limits of the result
- Entered loss is a financial stress amount that assumes legal liability; it is not a settlement or judgment prediction.
- Each sublimit is applied independently. A shared sublimit or per-person cap can reduce the actual usable amount further.
- One deductible is applied per occurrence. Category deductibles, minimum or maximum deductibles, and defense-cost deductibles require a separate calculation.
- Outside-limit defense is a candidate payment assumed not to erode either limit. Prior consent, necessity, insurer direction, and a separate defense cap still matter.
- Series or related-occurrence wording can change the number of occurrences, deductibles, and limits applied.
- Other insurance, coinsurance, subcontractor or landlord responsibility, victim fault, recovery, and contribution are not allocated.
- The modeled payout is not confirmed. Use the insurer’s adjustment statement and qualified Korean legal or insurance advice for an actual claim.
Frequently asked questions
Does Korean business liability insurance cover every customer accident?
No. The named insured, location, described operation, cause, endorsement, and exclusion all matter. The coverage toggle records the user’s schedule check and is not an insurer approval.
Can entrusted property use the ordinary property sublimit?
Property in custody, care, or control can face different wording or an exclusion. If no entrusted-property endorsement or usable amount is confirmed, entering a zero sublimit provides a conservative gap view.
How does the occurrence limit differ from the aggregate?
The occurrence limit caps one accident or a series treated as one occurrence. The policy-period aggregate caps cumulative payments, so prior aggregate use and repeated incidents must also be tested.
Why are there three defense-cost choices?
Commercial Act Article 720 supplies a legal framework for necessary defense cost, but consent, insurer direction, separate caps, and limit erosion can vary by wording. Select the scenario closest to the actual schedule and confirm it.
Is the modeled occurrence limit a recommended purchase amount?
No. It is the entered maximum loss minus affordable retention, plus inside-limit defense, rounded by the selected unit. It does not replace compulsory limits, a per-person cap, shared sublimits, a premium quote, or a larger scenario.
Does this replace Korean disaster or multi-use business compulsory insurance?
No. Facility type, operation, permit status, certificate, and statutory wording determine those duties. Confirm them separately with the competent authority and insurer.
Official sources and update date
- Korea National Law Information Center OPEN API: Civil Act ID 001706, MST 284415, Articles 750, 756, and 758, effective March 17, 2026
- Korea National Law Information Center OPEN API: Commercial Act ID 001702, MST 272919, Articles 719, 720, and 724, effective July 23, 2026
- Korea National Law Information Center OPEN API: Disaster and Safety Management Framework Act ID 009640, MST 282883, Article 76-5, and Enforcement Decree ID 009708, MST 288259, Article 84-6, effective July 22, 2026
- Korea National Law Information Center OPEN API: Special Act on the Safety Control of Publicly Used Establishments ID 010235, MST 247231, Article 13-2, effective January 4, 2024
Current-law status was checked on August 7, 2026.
Before renewal, recheck the current MST, amendment and effective dates, policy wording revision, and industry-specific compulsory insurance rules.
Put the actual schedule beside one maximum-loss scenario
Do not stop at the occurrence limit.
Enter the insured operation, entrusted-property and interruption sublimits, deductible, defense treatment, and aggregate already used.
Use each red gap as a concrete question for the insurer or broker so renewal quotes can be compared on the same basis.