President Trump issued executive orders after taking office in January 2017 that could lead to the removal of many of the 11 million unauthorized foreigners, including one million who work in US agriculture. Agriculture in the western United States especially has long relied on newcomers to fill seasonal farm jobs. The slowdown in Mexico-US migration since 2008-09 means that there are fewer flexible newcomers to supplement the current workforce. Farm employers are responding with worker bonuses, productivity-increasing tools, mechanization, and guest workers. Several factors suggest that the United States may be poised to embark on another large-scale guest worker program for agriculture. If it does, farmers should begin to pay payroll taxes on the wages of guest workers. This will foster mechanization and development in the workers’ communities of origin if payroll taxes are divided equally between departing workers and commodity-specific boards to increase the competitiveness of production in the United States. The economic incentives provided by payroll taxes could help to usher in a new and better era of farm labor.