Corporate alternative minimum tax rate calculation reduction provision

This bill reduces two corporate tax rates in Minnesota for businesses paying franchise tax. It lowers the main corporate franchise tax rate from 9.8% to 9.3% for 2025-2025, then to 9.05% for 2026-2026, and finally to 8.8% after 2026. It also reduces the rate used to calculate the corporate alternative minimum tax (a backup tax) from 5.8% to 5.5% for 2025-2025, then to 5.35% for 2026-2026, and 5.2% after 2026. These changes apply to corporations operating in Minnesota and take effect for taxable years beginning after December 31, 2024.