The One Big Beautiful Bill is the Treasury Department’s one big beautiful mission.
Now that the massive tax and spending cut bill is law, Treasury and the IRS will play a crucial role implementing the GOP’s $4.5 trillion tax package.
Some of the law’s changes will be easier to manage than others. Here are the most vexing provisions for the Trump administration to write rules on and administer, according to conversations with nine tax experts on and off the Hill.
