From Townhall:

The cost tab would not end here. An increase in the corporate tax would have further unintended consequences, including an increase in the cost of insurance in the U.S. The tax increases would be passed through to consumers, effectively affecting every American consumer who buys insurance, regardless of income. Mostly affected, however, will be those living in areas exposed to catastrophe losses like hurricanes, earthquakes, tornadoes, floods, and wildfires.