MyYachtsInsurance - Yacht Insurance Community

Reviewed by Alex Short, Independent Yacht Insurance Risk Analyst

TL;DR

Yacht insurance claim denials under hull policies often stem from exclusions in the care, custody, and control clause, which voids coverage if the vessel is unattended during a loss. Claims are also denied when damage results from faulty workmanship or failure to notify the insurer of planned refits [IYIC-1985]. Additionally, losses caused by named storms may be subject to deductible thresholds under [LSW-3000]. Coverage remains valid only if the loss is accidental and not excluded by policy terms.

Trigger Conditions

Trigger	Policy Impact	Consequence
Refit/lay-up not notified within 14 days	Care, custody, and control clause [IYIC-1985]	Coverage void if vessel unattended during loss
Faulty workmanship during repairs	Hull coverage exclusions [IYIC-1985]	Damage excluded from coverage
Named storm loss below deductible threshold	Deductible clause [LSW-3000]	Coverage reduced by deductible amount
Contractor assumes custody during repairs	Care, custody, and control clause [IYIC-1985]	Coverage void if loss occurs during unattended period
Survey overdue by 30 days	Hull policy validity [IYIC-1985]	Coverage void until survey completed and reported

Underwriter's Checklist

Survey reports: Underwriters verify the vessel's condition and valuation to ensure accurate risk assessment and prevent over-insurance [IYIC-1985] [IYIC-CLAUSE-10] [MIA-GUIDELINES].
Class certificates and status: Confirm the vessel is maintained to recognized standards and complies with classification society requirements [IHC-2003] [IYIC-1985] [MIA-1906].
Maintenance logs: Review for evidence of regular and proper maintenance, which reduces the risk of mechanical failure and claim disputes [IYIC-1985] [IYIC-CLAUSE-10] [MIA-GUIDELINES].
Refit/modification records: Ensure any structural or mechanical changes are documented and meet regulatory and classification standards [IHC-2003] [IYIC-1985] [MIA-1906].
Crew qualifications: Verify that crew members hold valid certifications and licenses to operate the vessel, reducing the risk of human error [IYIC-1985] [MIA-GUIDELINES] [ICA-2015].
Navigation area endorsements: Confirm the vessel is operated within the scope of its insurance coverage, including territorial and seasonal restrictions [IYIC-1985] [IYIC-CLAUSE-10] [ITC-H-1983].
Loss history declarations: Assess prior claims to evaluate the vessel’s risk profile and potential for future losses [IYIC-1985] [IYIC-CLAUSE-10] [MIA-GUIDELINES].
Named storm deductible compliance: Confirm the vessel is not operated in areas triggering named storm deductibles under LSW 3000 [LSW-3000] [IYIC-CLAUSE-10] [IYIC-1985].

Policy Wording Traps

Clause Type	Trap Mechanism	Scenario	Coverage Result
Care, Custody, and Control	Failure to maintain control of the vessel during lay-up	Owner leaves the yacht unattended in a marina during hurricane season without securing it properly	Claim denied under IYIC-1985 for failure to exercise due care [IYIC-1985]
Contractors' Exclusion	Use of unapproved contractors for repairs	Owner hires an unlicensed diver to inspect the hull, who causes damage during the inspection	Damage excluded under IYIC-1985 the relevant policy clause [IYIC-CLAUSE-10]
Consequential Damage	Damage not directly caused by a peril	Yacht sustains minor hull damage from grounding, leading to engine failure due to water ingress	Engine failure not covered as consequential damage [IYIC-1985]
Latent Defect Carve-Out	Pre-existing defects not disclosed	Owner purchases a used yacht with a hidden hull crack that later causes flooding	Claim denied under material change warranty [ICA-2015]
Faulty Workmanship Exclusion	Poor quality of recent repairs	Owner has a new engine installed, but improper installation leads to overheating and fire	Loss excluded under IYIC-1985 the relevant policy clause [IYIC-CLAUSE-10]
Wear and Tear / Gradual Deterioration	Progressive damage not sudden	Hull blistering develops over time due to osmotic pressure, leading to structural failure	Claim denied as gradual deterioration [IYIC-1985]

Operational Reality

Yards and operators frequently fail to document the pre-existing condition of a yacht before commencing repairs, leading to disputes over the cause of damage. This is particularly problematic when the vessel is declared a constructive total loss, as the absence of a clear baseline can prevent the underwriter from determining whether the damage was pre-existing or newly incurred [CTL-CLAUSE]. Documentation requirements include a detailed condition report signed by the owner, yard, and surveyor prior to work commencement. Surveyors are typically engaged at the start of the repair process to assess the vessel’s condition and may be required again post-repair to confirm the work meets underwriting standards [IYIC-1985]. Failure to involve the surveyor at these stages can result in the underwriter denying coverage for damage that could have been attributed to prior neglect or pre-existing faults. Timing and notice are critical; the owner must notify the underwriter of the incident and any repairs in a timely manner, typically within the policy notification period, to avoid claim denial [IYIC-CLAUSE-10]. Common mistakes include delaying surveyor involvement, omitting signed condition reports, or failing to secure prior underwriter approval for repairs. These errors can lead to the underwriter denying the claim on the grounds of non-compliance with policy terms and conditions.

Related Risks

Failure to maintain seaworthiness → May trigger exclusions under [IYIC-1985] for losses arising from unseaworthy conditions, leading to claim denial if negligence is established
Non-disclosure of prior damage → Violates warranties of insurable interest under [MIA-1906], potentially voiding coverage for subsequent claims related to pre-existing conditions
Inadequate deductible application → Incorrect calculation or omission of deductible under [IYIC-CLAUSE-10] may result in partial or full denial of claim settlement
Breach of named storm deductible clause → Failure to comply with terms under [LSW-3000] may exclude coverage for storm-related losses, especially in high-risk zones

Questions for Your Broker

Does the policy impose a deductible for all claims or only those under the relevant policy clause of the Institute Yacht Clauses (1.11.85) [IYIC-CLAUSE-10]?
Are claims related to damage caused by a named storm subject to the LSW 3000 deductible clause [LSW-3000]?
Does the policy exclude coverage for damage arising from failure to comply with warranty requirements under the Marine Insurance Act 1906 [MIA-1906]?
Within what timeframe must a claim be notified to the insurer under the applicable Institute Time Clauses Hulls (1.10.83) [ITC-H-1983]?
Are claims for constructive total loss governed by the abandonment provision of the Marine Insurance Act 1906 [CTL-CLAUSE], and does the policy require specific documentation for such claims?
Does the policy exclude coverage for damage caused by the use of non-compliant marine sanitation systems under Florida Statute 327.53 [FL-STAT-327-53]?

References

Institute Yacht Clauses (1.11.85) (framework) — https://www.fortunes-de-mer.com/documents%20pdf/polices%20corps/Etrangeres/Royaume%20Uni/Institute%20Yacht%20Clauses%201.11.85.pdf
LMA/IUA Named Storm Deductible Clause (LSW 3000) (framework) — https://www.lmalloyds.com/LMA/Wordings/Marine/Marine_Cargo/LMA_Marine_Cargo_Clauses.aspx
Institute Yacht Clauses (1.11.85) the relevant policy clause (Deductible) (framework) — https://www.fortunes-de-mer.com/documents%20pdf/polices%20corps/Etrangeres/Royaume%20Uni/Institute%20Yacht%20Clauses%201.11.85.pdf#clause10
MIA Guidelines (other) — https://www.marineinsurance.org/
International Hull Clauses (01.11.03) (framework) — http://www.fortunes-de-mer.com/documents%20pdf/polices%20corps/Etrangeres/Royaume%20Uni/International%20Hull%20Clauses%202003.pdf
Marine Insurance Act 1906 (UK) (legal) — https://www.legislation.gov.uk/ukpga/1906/41/pdfs/ukpga_19060041_en.pdf
Insurance Act 2015 (UK) (legal) — https://www.legislation.gov.uk/ukpga/2015/4/pdfs/ukpga_20150004_en.pdf
Institute Time Clauses Hulls (1.10.83) (framework) — https://www.fortunes-de-mer.com/documents%20pdf/polices%20corps/Etrangeres/Royaume%20Uni/Institute%20Time%20Clauses%20Hulls%201.10.83.pdf
Constructive Total Loss (MIA 1906 s.60) (legal) — https://www.legislation.gov.uk/ukpga/1906/41/section/60
Florida Statute 327.53 (Marine Sanitation) (legal) — https://www.leg.state.fl.us/Statutes/index.cfm?App_mode=Display_Statute&URL=0300-0399/0327/0327.html

Disclosure

This content is provided for informational purposes only and does not constitute insurance advice. Coverage terms vary by policy, jurisdiction, and underwriter. Consult a licensed marine insurance broker for guidance specific to your vessel and operations.

Common Causes of Yacht Insurance Claim Denials