Actual and proposed personal income tax rates. The Governor's plan would create a two-tiered income tax bracket at the $200,000 threshold for married couples filing jointly (and 50% and 75% of this level for single filers and head of household filers, respectively). Income below these levels would be taxed at 4.25% in 2025 and 3.99% in 2026, while the current 4.5% tax rate would continue to apply to income above the thresholds.