Big companies drove Donald Trump’s tax cut law but refused to commit to any specific wage hikes for workers, despite repeated White House promises it would help employees, an investigation shows. The 2017 Tax and Jobs Act – the Trump administration’s one major piece of enacted legislation – did deliver the biggest corporate tax cut in US history, but ultimately workers benefited almost not at all.

Major U.S. banks shaved about $21 billion from their tax bills last year -- almost double the IRS’s annual budget -- as the industry benefited more than many others from the Republican tax overhaul.By year-end, most of the nation’s largest lenders met or exceeded their initial predictions for tax savings.

The $1.5 trillion tax overhaul that President Trump signed into law late last year has already given the American economy a jolt, at least temporarily. It has fattened the paychecks of most American workers, padded the profits of large corporations and sped economic growth.

With attention fixed on the Brett Kavanaugh confirmation hearings, the U.S. House of Representatives passed a new $3.1 trillion tax cut on Friday. The vote was 220 to 191, including three Democrats. The down-to-the-wire 2017 tax act passed in late December contained a mix of permanent and temporary changes that had to result in a net increased cost that fell within a structural limit of $1.5 trillion that allowed the Senate to approve the bill with a simple majority.

The Trump administration is considering bypassing Congress to grant a $100 billion tax cut mainly to the wealthy, a legally tenuous maneuver that would cut capital gains taxation and fulfill a long-held ambition of many investors and conservatives.Steven Mnuchin, the Treasury secretary, said in an interview on the sidelines of the Group of 20 summit meeting in Argentina this month that his department was studying whether it could use its regulatory powers to allow Americans to account for inflation in determining capital gains tax liabilities.