The creation of a separate department will likely need congressional support, though Trump could try to establish the department within a different existing agency.

The creation of a new agency requires an act of Congress, and Republicans hold the majority of both the House and the Senate.

The parallel with the Internal Revenue Service is seen as a signal of the president-elect’s determination to enact sweeping import duties.

President-elect Donald Trump said he would establish an External Revenue Service to collect tariffs, duties and all revenue from foreign sources.

The president-elect's proposed new agency was mocked because it duplicates what's already being done by other government agencies.

President-elect Donald Trump said he would create an “External Revenue Service” tasked with collecting tariffs on foreign imports, the latest indication that the Republican aims to carry out his promises for sweeping trade levies when he retakes office.

President-elect Trump plans to create an External Revenue Service that would collect tariffs from U.S. importers, with economists arguing the proposed agency's name obscures who pays.

U.S. President-elect Donald Trump said on Tuesday he will create a new government agency called the External Revenue Service "to collect tariffs, duties, and all revenue" from foreign sources as he readies new import tariffs ahead of his inauguration next week.