Newly announced tax rules will make it more complex and expensive for U.S. companies to pursue maneuvers like Medtronic's proposal to acquire Irish health care firm Covidien and move the combined company's legal headquarters overseas.
But the fresh regulations are unlikely to stop such deals from happening.
The Treasury Department announced the legal tweaks late Monday amid an escalating debate over so-called inversion deals such the one envisioned by Fridley-based Medtronic, one of the world's largest medical device companies. On Tuesday, analysts said the changes could drive up the cost of the $42.9 billion deal but would be unlikely to lead the companies to drop it.
Debbie Wang, an analyst with Morningstar in Chicago, said the deal would likely go through based on its "strong strategic value." Medtronic has said from the beginning that tax advantages are not the deal's principal attraction.
At least seven other U.S. companies including Burger King Worldwide are pursuing inversions, which would enable them to avoid some U.S. taxes. But the increasing popularity of the deals has stirred a political backlash, with President Obama calling companies that pursue them unpatriotic.
The Obama administration has urged Congress to pass a tax-reform bill to outlaw the deals. Defenders of the maneuver argue that inversions are rational and legal responses to the United States' high corporate tax rate and its unusual policy of taxing some business that takes place in other countries.
With little progress seen on several pending anti-inversion bills, Treasury Secretary Jacob Lew announced five new rules Monday night that would remove some of the economic incentives the deals offer.
Medtronic officials are still studying the changes. "We will release our perspective on any potential impact on our pending acquisition of Covidien following our complete review," spokesman Fernando Vivanco wrote in an e-mail.