The U.S. government has refunded nearly $100 billion in tariffs since the Supreme Court invalidated a significant portion of the import duties imposed under President Donald Trump, according to court documents cited by ABC News.

The refunds account for more than half of the approximately $166 billion in tariffs paid by thousands of U.S. companies before the Supreme Court ruled that many of the measures were unlawful.

Trump had introduced the tariffs under a law allowing the president to take action during an economic emergency. However, the Supreme Court later struck down a large share of those duties, while leaving sector-specific tariffs on products such as steel, aluminum, copper, and lumber in place.

Court filings released this week show that U.S. Customs and Border Protection estimates that roughly $128.68 billion in refund claims have either been processed or remain under review.

Following the ruling, the Trump administration introduced a temporary 10% tariff, which has since expired, before replacing it with a new tariff of 10% or 12.5%, depending on the country. The new duties now apply to imports from around 60 countries, including the European Union.

The latest tariff measures are also facing legal challenges, with a lawsuit filed by 25 U.S. states, all led by Democratic governors.