IRS cut forces tax withholding tables to be changed twice in a few months

The government's announced IRS tax reduction for the first to sixth income brackets requires two updates to monthly withholding tables: one in November 2026 to reflect the new rates, and another in January 2027 due to the annual automatic adjustment of tax brackets and specific deductions based on GDP and social support indices. Employers and public entities must update their payroll software for both changes, though it remains unclear if tables will change again in December 2026.