The disclosure came as US companies face criticism on the issue of pay equality, especially in the male-dominated technology sector.
The Seattle-based online retailer said it carried out a study after pressure from Arjuna Capital which has been pushing it to prepare a report on gender pay equity.
Arjuna’s Natasha Lamb, director of shareholder engagement said the group was pleased that Amazon is stepping up in response to investor concerns about gender pay equity.
Amazon, which estimates that women made up 39 percent of its global workforce and 24 percent of managers as of July, said a review of compensation including both base pay and stock compensation found that women earned 99.9 cents for every dollar that men earned in the same jobs.
The survey, which was conducted by an external labour economist, covered Amazon workers at various levels of the company’s organisation in the United States.
“There will naturally be slight fluctuations from year to year, but at Amazon we are committed to keeping compensation fair and equitable,” the company said in a statement.
The study, which was recently completed, also found that minorities earned 100.1 cents for every dollar that white employees earn in the same jobs.