US Tariffs on Fertilizers from Canada — 10% (2026)

Among US trading partners for fertilizers, Canada plays a notable role, with approximately $783B in total bilateral trade.

The current tariff framework for fertilizers from Canada reflects the post-SCOTUS landscape: a 10% Section 122 tariff replaced the previously higher IEEPA rates after the Court's February 2026 ruling.

The Section 122 tariff is subject to a 150-day statutory time limit and is set to expire approximately July 24, 2026, unless Congress acts to extend or replace it. Importers should monitor legislative developments closely as this deadline approaches.

Fertilizers (HTS Chapter 31) generally enter duty-free at the MFN level, with the Section 122 tariff as the primary duty. No additional Section 232 or Section 301 surcharges apply to most products in this category from Canada.

Canada is party to the USMCA, which may provide preferential or duty-free access for qualifying fertilizers. Importers should verify rules of origin requirements to take advantage of preferential rates.

Key products in HTS Chapter 31 imported from Canada include Urea, Ammonium nitrate, Diammonium phosphate, Potash (potassium chloride), NPK blended fertilizers, and Superphosphates.