Apple shifted much of its offshore wealth from Ireland to a tax haven in the British Isles, according a review of leaked Paradise Papers documents Monday.

Apple confirmed the move in an online post, saying it served to "ensure that tax obligations and payments to the US were not reduced."

After the US technology colossus stated publicly in 2013 that it was paying its proper share of taxes, it moved the bulk of its untaxed overseas cash to Jersey, a British dependency in the Channel Islands, various media organizations reported based on the once-secret cache of documents known as the Paradise Papers.

The documents shared with some media outlets by the US-based International Consortium of Investigative Journalists has exposed tactics the wealthy and powerful have used to avoid taxes.

In its lengthy post, Apple said it moved profits to Jersey while making corporate changes to adapt to Irish tax laws tightening in 2015.

"Apple's subsidiary, which holds overseas cash, became resident in the...