While the Tax Cuts and Jobs Act (TCJA) generally reduced individual tax rates for 2018 through 2025, some taxpayers could see their taxes go up due to reductions or eliminations of certain tax breaks — and, in some cases, due to their filing status. But some may see additional tax savings due to their filing status.
Unmarried vs. married taxpayers
In an effort to further eliminate the marriage “penalty,” the TCJA made changes to some of the middle tax brackets. As a result, some single and head of household filers could be pushed into higher tax brackets more quickly than pre-TCJA. For example, the beginning of the 32% bracket for singles for 2018 is $157,501, whereas it was $191,651 for 2017 (though the rate was 33%). For heads of households, the beginning of this bracket has decreased even more significantly, to $157,501 for 2018 from $212,501 for 2017.
Married taxpayers, on the other hand, won’t be pushed into some middle brackets […]