Montana captive domicile overview
2025-10-31
Once known for 831(b) micro-captives (peak 261 in 2021); after IRS disclosure rules, net -11 in 2024 to 97.
| Active captives | 97 captives (year-end 2024, state basis; 271 incl. cells/series on NAIC basis) |
| Premium volume | Approx. US$509 million (2024, NAIC basis) |
| Minimum capital | US$250,000 (pure captive, MCA 33-28-104) |
| Tax treatment | Premium tax 0.4% first US$20m / 0.3% above; assumed reinsurance 0.225%/0.1% (SB60 from 2026 removes certain caps) |
| Regulator | Montana Commissioner of Securities and Insurance (CSI) |
Data updated October 2026, compiled from regulator statistics and industry sources (Captive Review, Business Insurance, etc.). Figures refer to the most recent available year; please refer to regulator disclosures for the latest data.