As of August 19, we estimate that the effective tariff rate for goods imported into the United States has increased by about 18 percentage points when measured against 2024 trade flows. We project that increases in tariffs implemented during the period from January 6, 2025, to August 19 will decrease primary deficits (which exclude net outlays for interest) by $3.3 trillion if the higher tariffs persist for the 2025?2035 period. By reducing the need for federal borrowing, those tariff collections will also reduce federal outlays for interest by an additional $0.7 trillion. As a result, the changes in tariffs will reduce total deficits by $4.0 trillion altogether.