The South Korean unit of Amazon Web Services paid 150 billion won (US$125.42 million) in back taxes to the tax office, sources said Tuesday.

Axar.az reports citing foreign media.

The National Tax Service (NTS) slapped the corporate tax on the company last year after carrying out a tax probe. Amazon made the payment in November without taking any legal actions, according to industry sources.

Google Korea has filed a complaint with the Tax Tribunal over the 600 billion won the NTS levied in a back corporate tax in January. Should the tribunal rule against the tax office, Google could get the money back.

At the heart of the dispute is whether multinational firms have a fixed place of business in South Korea.