How do tax legislation and tariffs combined affect incomes across households?
Core argument: The Budget Lab estimates the combination of the One Big Beautiful Bill Act and 2025 tariffs would cut after-tax-and-transfer income by more than 6.5% on average for the bottom 10% of households over 2026–2034.
The Budget Lab has previously estimated the [10 yr] net budget impact of combining the OBBBA and recent increases in tariffs. Conventionally scored, OBBBA costs $2.4 trillion as written ($4.0 trillion if the temporary provisions become permanent). The tariffs implemented as of June 1 would raise $2.4 trillion. What is the net distributional impact of both the OBBBA and tariffs? The results of this exercise are shown in Figure 1, which reports average annual changes to after-tax-and-transfer income over the 2026-2034 period. We find that the combination of OBBBA and 2025 tariffs would reduce resources on average among the bottom 80 percent of households. The bottom ten percent of households would see an average reduction of more than 6.5 percent in incomes, while those at the top would see an increase of nearly 1.5 percent.


