Global tax deal faces hurdles from Hungary, Congress

US and European officials are trying to add new momentum to the global campaign for a minimum corporate tax rate, but they are finding it difficult to navigate around a series of roadblocks, namely the narrow margins of Democrats in Congress and the resulting objections from Hungary.

about 140 countries agreed last year to put A 15% minimum tax on large companies paves the way for the most significant overhaul of international tax rules in a century. It took years of negotiations to reach a point that often seemed close to collapse. Now, eight months later, little progress has been made on this changes in national laws to apply the tax.