NEW YORK (AP) — Businesses big and small have started receiving tariff refunds after the U.S. Supreme Court ruled that President Donald Trump lacked the constitutional authority to impose higher import taxes on goods from nearly every other country.

The process could grind to a halt, however, after the Trump administration said Friday that it intended to appeal a federal judge’s order to allow all companies that paid the invalidated duties to seek refunds, not just the ones that filed lawsuits.

Until the Department of Justice informed the judge of its planned appeal, the refund system overseen by U.S. Customs and Border Protection had worked fairly smoothly.…