Ireland, the low-tax European home of Apple, Facebook, and Google, will raise its corporate tax rate to 15%, joining a global agreement

Ireland said on Thursday it would join an international agreement to set a minimum corporate tax rate of 15%.

The country dropped its opposition to an overhaul of global corporate tax rules, agreeing to give up its 12.5% tax for large multinationals with revenues in excess of 750 million euros ($867 million).

Ireland, the low-tax European headquarters for tech giants including Apple, Google, and Facebook, declined to sign up to the initial deal in July, objecting to a proposed rate of "at least" 15%.

An updated text this week dropped the "at least," clearing the way for ministers to do what successive governments said they would never contemplate — giving up the low rate that has helped win Ireland investments and jobs for decades.

"Joining this agreement is an important decision for the next stage of Ireland's industrial policy - a decision that will ensure that Ireland is part of the solution," Finance Minister Paschal Donohoe told a news conference.

"This is a difficult and complex decision but I believe it is the right one."

All but a handful of the 140 countries involved signed up to the July deal, brokered by the Organisation for Economic Co-operation and Development (OECD), that marked the first rewriting of international tax rules in a generation.

The holdouts, which include fellow EU members Estonia and Hungary, can't block the proposed changes. The 140 negotiating countries are due to meet on Friday to finalise the deal.

The US Treasury, which had pressed Ireland to support the global minimum tax, hailed Dublin's decision as putting the world on a path toward a "generational achievement" to ensure corporations pay their fair share of taxes.

If Ireland had maintained its lower rate, multinationals that book profits there could be forced to pay the additional tax elsewhere under the proposals.

The government said it had received assurances from the European Commission that Ireland could maintain the 12.5% rate for firms with annual turnover below 750 million euros ($867 million) and keep tax incentives for research and development.

The Commission also promised it would stick faithfully to the OECD agreement and not seek a higher rate among member states, Donohoe said.