Tariff challenges continue as filers register for electronic refunds.

Court ruling could trigger billions in repayments to importers after Supreme Court found tariffs were unlawfully collected.

Measure would require full repayment with interest within 180 days, prioritizing small businesses after Supreme Court strikes down IEEPA-based duties

Move follows high court ruling invalidating emergency tariffs, with White House launching new trade probes to potentially raise rates further.

6-3 ruling says the president overstepped his authority by using emergency powers to impose sweeping import taxes.