Legal & Regulatory
File and Use State
In file-and-use states, insurers file rate and form changes with the insurance department and may implement them immediately—subject to the department's right to later review and disapprove if non-compliant.
Last reviewed: May 2026 · Editorial methodology
Definition
A 'file and use' state is one in which insurance companies may file new or revised rates and policy forms with the state insurance department and immediately begin using them in the marketplace, without waiting for regulatory pre-approval. The insurance department retains the right to review filed materials and subsequently disapprove rates or forms that are inadequate, excessive, unfairly discriminatory, or otherwise non-compliant with state law—but the insurer can write business during this review period. File-and-use systems allow faster product innovation and rate adjustments compared to prior approval states, theoretically benefiting insurers that need to respond quickly to changing market conditions, loss trends, or competitive pressures. States with file-and-use systems for property-casualty insurance include Illinois, New York (for some lines), and several others. A variant is the "use and file" system, where insurers can use new rates before filing at all, with the filing required within a specified period (commonly 15–30 days) after implementation. The regulatory philosophy behind file-and-use reflects a belief in competitive market discipline: if rates are excessive, competition will drive them down without need for prior approval. Critics argue that file-and-use systems can allow inadequate rates to destabilize markets before regulators can intervene.
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Cover Forge USA Editorial Team
Editorial Lead
This article was researched and written by the Cover Forge USA editorial team against federal sources (NAIC, CMS, FEMA, DOL, SSA, state DOIs) and standard policy forms. Bylines organize content by topic — they do not assert individual licensure. See our editorial-policy for details.
Reviewed 2026-06-14
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