Customs and Border Protection launched a new online portal to process what could amount to as much as $175 billion in tariff refunds to businesses after the tariffs were deemed illegal.  

The portal went live Monday morning will be used by importers to file claims for duties collected under tariffs imposed in 2025 using emergency economic powers. A federal court later deemed those tariffs were not lawfully enacted, triggering a sweeping repayment effort now underway.