Siemens at Risk of Capture in Digital Tax Rules Targeting Amazon

German conglomerate Siemens AG could be caught by rules designed to net Amazon.com inc. into the OECD’s digital tax overhaul proposal, a company executive said Wednesday.

The Organization for Economic Cooperation and Development is working with nearly 140 countries to rewrite how multinationals, particularly large tech groups, are taxed so that a portion of their profits are reallocated to the markets where they make sales. Earlier this year the U.S. proposed that these changes should be limited to the 100 largest, most profitable companies.

• Governments are considering segmenting cloud-based businesses units so that Amazon Web Services, which has low ...