Regulators require insurers to hold funds for coverage still owed. The unearned premium reserve is the balance-sheet liability equal to the total unearned premium on all in-force policies. It ensures that resources exist to provide the remaining coverage or to refund premium if policies are cancelled.

The reserve is calculated from the unexpired fraction of each policy’s term, often using daily or monthly pro-rata methods. It appears as a major liability alongside loss reserves. Statutory accounting rules prescribe how the reserve is computed and what assets may support it.

Growth in written premium increases the unearned premium reserve and consumes capital until the premium is earned. Insurers monitor the relationship between the reserve and available surplus. Release of the reserve into earnings occurs steadily as policies age toward expiration.

• Liability for unexpired policy coverage
• Equals aggregate unearned premium
• Required by statutory accounting
• Supported by assets until coverage is provided