Washington   -    The U.S. Internal Revenue Service is auditing Uber Technologies Inc’s taxes for 2013 and 2014 and the ride-hailing company expects unrecognized tax benefits to be reduced within the next year by at least $141 million. In its full quarterly report on Tuesday, Uber said various state and foreign tax authorities were also looking into its taxes and that it was currently unable to put a definite timeline or estimate on the overall adjustments that might result.

The $141 million amount related only to its transfer pricing positions, which refers to the common multinational practice of charging for services between wholly-owned businesses in different countries or jurisdictions to reduce the tax it pays. Industry experts characterize transfer pricing as a relatively risky strategy, which typically is among multinationals’ top tax concerns and has been used by authorities in the past to go after Apple Inc and Amazon.

“Although the timing of the resolution and/or closure of the audits is highly uncertain, it is reasonably possible that the balance of gross unrecognized tax benefits could significantly change in the next 12 months,” the company said.