If 2024 brought us stranded astronauts and a troop of escaped monkeys, what 2025 might bring is anyone’s guess. One thing is certain: Businesses worldwide will need to navigate new tax obligations.

Some tax policy changes, like many European e-invoicing mandates, have been years in the making. Others have yet to take shape. The 47th president of the United States has promised to levy steep tariffs on many imports, but exactly what those tariffs will look like is unknown.