WASHINGTON, April 14, 2026 The US government will start refunding $166 billion in unlawfully imposed tariffs on Monday, following a Supreme Court ruling that former President Donald Trump exceeded his authority by implementing the levies. The US Customs and Border Protection (CBP) agency has completed the first phase of its new Cape system to process tariff refunds, marking the beginning of a massive reimbursement effort. Over 330,000 importers who paid tariffs on 53 million shipments are now eligible for refunds after the Supreme Court's February decision invalidated the tariffs.

Supreme Court Ruling and Its Impact

In February, the US Supreme Court ruled that former President Donald Trump had overstepped his authority by imposing comprehensive tariffs. The decision immediately triggered a wave of lawsuits from affected businesses seeking reimbursement.

The court's ruling has forced the CBP to develop a phased approach to refunding the tariffs. The agency is now working to address $2.9 billion in unresolved tariff cases while rolling out its new system.

Challenges in the Refund Process

Despite the launch of the Cape system, significant hurdles remain. The CBP must verify and process refunds for hundreds of thousands of importers, a task complicated by the sheer volume of claims.

Solutions are still being sought for $2.9 billion in disputed tariffs, indicating that not all cases will be resolved immediately. The phased introduction of the refund system aims to streamline the process, but delays are expected due to the complexity of the claims.

Economic and Political Ramifications

The refund process carries major economic implications, as businesses that have been burdened by the tariffs for years will finally see relief. The $166 billion reimbursement is one of the largest in US history, highlighting the scale of the financial impact.

Politically, the Supreme Court's decision has reignited debates over presidential authority in trade policy. The ruling sets a precedent that could limit future administrations from unilaterally imposing similar tariffs without congressional approval.

As the refund process begins, businesses and policymakers alike will be watching closely to see how efficiently the CBP handles the monumental task ahead.