STATE LAW – HAWAII LIBRARY – GUIDE 06

Hawaii Stacking & Multiple Insurance Policies

Stacking analysis asks whether more than one independently applicable coverage may respond to the same loss. The answer depends on the coverage involved, insured status, policy wording, statutory rules and current Hawaii case law.

VG-STACKINGReviewed Oct. 4, 2026
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Hawaii generally prohibits stacking unless the statutory stacking option was purchased

HRS § 431:10C-301(c) prohibits stacking or aggregating UM/UIM coverage except as provided in subsection (d). Subsection (d) requires the insurer to offer the insured the opportunity to purchase stacked UM and UIM coverage.

The stacking offer must be meaningful

Hawaii Supreme Court authority has required a legally sufficient offer and written rejection of stacked coverage. An insurer cannot simply force the insured to affirmatively select stacking without providing the statutory opportunity to reject it knowingly.

Other-insurance clauses are not automatically anti-stacking clauses

A policy provision that establishes priority among multiple insurers may be enforceable if it does not improperly reduce otherwise available UM/UIM benefits. Analyze priority, stacking and anti-duplication as separate issues.

Primary statute

HRS § 431:10C-301(c)-(e).

PUBLIC-INTEREST LEGAL EDUCATION

VictimsGuide does not provide legal services or create an attorney-client relationship. Insurance requirements, deadlines, remedies and controlling authority can change. Verify current primary authority, policy language and the law applicable to the particular event before legal reliance.

Official Sources

Verify current Hawaii law at the source

The reviewed Hawaii guide content above is preserved. Use current statutes, insurance regulations, controlling cases and the operative policy before legal reliance.

Bottom line. Preserve Hawaii-specific no-fault, PIP, policy, factual and current-authority issues before legal reliance.

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