The U.S. sugar program is the federal commodity support program that maintains a minimum price for sugar, authorized until 2031 by the One Big Beautiful Bill Act (OBBBA). It uses various policies to keep the domestic prices of sugar in the U.S. higher than the world price. It is intended to operate at no cost to the government.

The U.S. sugar program makes loans available to sugar processors if prices are below a specified level (24¢/lb. for raw cane sugar, or 32.77¢/lb. for refined beet sugar.) Sugar producers can take out an up-to nine month loan at that rate and use the equivalent amount of sugar as collateral for the loan. A sugar processor can chose to forfeit the loan, at which point the USDA owns the sugar and is responsible for it. A key goal of the U.S. sugar program is to keep prices above the rate where it would be economically preferable for a sugar producer to forfeit the loan.

The U.S. sugar program implements tariff-rate quotas (TRQs) to restrict low-priced imports. World Trade Organization agreements require that the total volume allowed to enter at the low-tier duty be at least 1.11 million tons for raw sugar and twenty-two thousand tons for refined sugar. These TRQs are allocated to Canada and Mexico first, then each additional rate will be allocated on a first-come, first-served basis. Allocations for every country can be found here. These allocations are based on 40-year old data. Import restrictions are intended to meet U.S. commitments under Uruguay Round Agreement on Agriculture. Mexican imports are currently restricted under a separate agreement that was arrived at after the USITC found that Mexico had engaged in dumping.

The U.S. sugar program implements domestic marketing allotments that restrict the amount of sugar each producer is allowed to sell annually. This allotment is not permitted to be less than 85% of estimated consumption. This is intended to prevent a domestic surplus of sugar, which would depress prices and encourage loan forfeitures.

If the previous two price-support measures are insufficient to discourage loan forfeitures, the USDA can buy surplus sugar and sell it to ethanol producers to attempt to increase the sugar price. If forfeitures do occur, the USDA is required to institute this program with both the forfeited sugar and any sugar that it buys directly. Forfeited sugar may be sold back to the food-use market in the event of an emergency shortfall of sugar for human consumption.

The U.S. sugar program dates back to the 1981 U.S. Farm Bill, which introduced three of the four main elements that remain in the program today. It authorized the Secretary of Agriculture to support sugar prices and keep them above established levels by offering nonrecourse loans, buying processed sugar, and imposing import restrictions.

Significant modifications were made in the 2008 Farm Bill. This introduced the ethanol backstop, which was continued in the 2014 Farm Bill.

In 2025, the OBBBA increased the loan rates the current rates of 24¢/lb. for raw cane sugar, or 32.77¢/lb. for refined beet sugar.