On December 26, 2019, President Trump signed Executive Order 13901, which fundamentally altered the compensation structure for federal employees beginning January 1, 2020. Rather than implementing the pay adjustment formula that would have otherwise applied across the federal workforce, the executive order substituted a modified calculation that reduced the annual pay increase and adjusted locality pay differentials—additional compensation meant to account for cost-of-living variations across different geographic regions. This represented a significant departure from the statutory framework that had historically governed federal employee compensation, as the order essentially overrode standard congressional pay-setting mechanisms through executive action.

The order directly impacted approximately 2.1 million federal workers across all agencies and departments, from administrative staff to law enforcement personnel to scientific researchers. Federal employees in high-cost metropolitan areas faced particularly acute effects, as the modified locality pay adjustments translated into concrete reductions in take-home income. For many workers earning between $40,000 and $80,000 annually, the difference between the standard adjustment and the Trump administration's formula represented hundreds of dollars in foregone annual compensation—funds that would have offset inflation and rising housing, healthcare, and transportation costs.

This action reflected a broader Trump administration pattern of constraining federal spending through workforce measures while simultaneously pursuing aggressive trade policies and tariff implementations that increased consumer costs elsewhere in the economy. The pay adjustment reduction occurred in a policy environment that included the trade emergency declarations and tariff suspensions documented in related executive orders, suggesting a selective approach to government spending where federal employee wages were curtailed even as tariff policies shifted costs to American consumers and businesses. The philosophical inconsistency was notable: the administration claimed fiscal responsibility regarding federal payroll while maintaining tariff policies that economists documented as inflationary for ordinary households.

The executive order faced legal challenges from federal employee unions and was ultimately reversed by the Biden administration, which restored the standard pay adjustment methodology. The reversal signaled a fundamental disagreement about whether executive authority extended to unilateral modification of federal compensation without congressional involvement, a question that touched on both constitutional separation of powers and statutory protections for the civil service.