Global Tax Talks Race to Resolve Hurdles With Time Running Out

The 140 countries attempting to conclude years of negotiations to overhaul global tax rules for an increasingly digitized economy are racing to resolve key details against a ticking clock.

With just over a week until an Oct. 8 meeting of all the governments involved, negotiators are still wrestling over parameters of setting a global minimum corporate tax and sharing the spoils from levies on tech giants like Facebook Inc. and Alphabet Inc.’s Google, according to people familiar with the matter.

They are also trying to work out how the global deal will coordinate countries on halting new unilateral digital ...