Real-time tracking of US tariff policy changes, trade negotiations, and import duty updates that affect your business. Updated daily.
2026 has been one of the most active years for US trade policy in decades. The SCOTUS IEEPA ruling on February 20 struck down a major tariff authority and unlocked $166 billion in refunds. Four days later, the Section 122 surcharge added 10% to all imports. Meanwhile, Section 301 tariffs on China continue at 25-35%, and the de minimis elimination from August 2025 continues to reshape e-commerce logistics. For importers, staying current on these overlapping policy changes is the difference between profitability and losses.
Several major events could reshape tariff policy before year-end. The Section 122 surcharge must expire by July 24 unless replaced. USMCA enters its first six-year review which could modify rules of origin. Several Section 301 exclusion windows close in June. And ongoing trade negotiations with the EU, UK, and Indo-Pacific partners could result in new preferential trade agreements that reduce tariff rates for participating countries.
MarginHub monitors all official tariff rate sources including the USITC Harmonized Tariff Schedule, Federal Register notices, CBP bulletins, and USTR announcements. When a rate changes that affects any product in your catalog, you receive an immediate alert with the old rate, new rate, effective date, and estimated impact on your costs. No more manually checking government websites or relying on trade press summaries.
Tariff rates can change at any time through executive orders, legislative action, or regulatory proceedings. In 2025-2026, major tariff changes have occurred roughly every 2-3 months, including the de minimis elimination, IEEPA ruling, Section 122 surcharge, and ongoing Section 301 modifications. Monitoring tariff news is essential for importers.
Official tariff rates are published in the Harmonized Tariff Schedule maintained by the US International Trade Commission. Changes are announced through the Federal Register, CBP bulletins, and USTR notices. MarginHub aggregates all these sources and alerts you when rates change for your specific products.
The Section 122 surcharge expires July 24, 2026, which could reduce rates by 10% across all imports or be replaced by a permanent mechanism. USMCA undergoes its six-year review in July 2026. Additionally, several Section 301 exclusion windows are open through June 2026. These events could significantly change the tariff landscape.
Tariffs apply based on the date goods are entered into US customs, not the date they were ordered or shipped. If tariff rates change while your goods are on the water, the rate in effect when CBP processes the entry applies. This creates risk for long-lead-time shipments, particularly ocean freight from Asia with 3-5 week transit times.
Generally, tariff increases apply prospectively from their effective date. However, the IEEPA ruling demonstrated that tariff reductions can be retroactive, with refunds available for past payments. Anti-dumping and countervailing duty orders can also be applied retroactively in some circumstances.
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