Bipartisan Tax Fairness Act of 2025

HR 4280, the Bipartisan Tax Fairness Act of 2025, modifies federal income tax brackets for all filing statuses, including married couples filing jointly, heads of households, single filers, married filing separately, and estates/trusts. It lowers the income thresholds where higher tax rates apply - for example, the 10% bracket for married couples ends at $19,050 (down from current law) instead of $20,550. The bill retains the same marginal tax rates (10% to 39.6%) but adjusts bracket ranges annually for inflation to prevent taxpayers from moving into higher brackets due to rising prices. These changes apply to taxable years beginning after December 31, 2025.