0204 GMT April 22, 2019
The firm said its BAME workers were statistically paid less because more of them worked in administrative and junior roles, rather than senior ones, bbc.com reported.
PwC said it had published the data to help it speed up progress on the issue.
Currently reporting on BAME pay isn't required under government regulations.
PwC said it hoped that publishing the data would help the firm to tackle ‘ethnicity challenges’.
"The more transparent we are with our diversity and social mobility data, the more we hold ourselves accountable to achieving real change," said PwC chairman Kevin Ellis.
The firm has been voluntarily publishing its gender pay gap figures since 2014, a move which it said had helped ‘shine a spotlight on gender issues’.
"We're hoping that BAME pay reporting can do the same for tackling ethnicity challenges," it said.
It said that its gender pay gap for 2017 was 13.7 percent, down from 15.2 percent in 2016.
The company published the new BAME figures alongside its annual results for the year to the end of June.
The firm said while revenue had risen five percent to £3.6 billion for the year, profit had slipped by one percent to £822 million.
PwC's consulting, tax and assurance business divisions all saw revenues rise, but income from its deals business fell by one percent.
Ellis said it was ‘a solid performance’ in ‘a challenging and complex market’.
He said he remained optimistic about the market outlook despite continuing uncertainty over the UK's exit from the EU.