Newsroom
Events
Subscribe

Article

USMCA renegotiation: Trade strategy considerations for U.S. businesses

How American importers and exporters can prepare as the review unfolds

July 15, 2026
#
Business tax Policy Supply chain International tax

Overview: What USMCA renegotiation means for U.S. businesses

The United States’ decision on July 1, 2026, to decline renewing the U.S.-Mexico-Canada Agreement in its current form has set the trilateral pact's formal review in motion, prompting questions from American importers and exporters about what comes next.

USMCA remains in effect. Duties, origin rules and preferential treatment are unchanged for now. But the review, and any renegotiation that follows, could reshape how goods move across North American borders and how much it costs to move them.

For U.S. businesses with suppliers, customers or operations in Canada or Mexico, the practical response starts with the following fundamentals:

  • Know your classifications
  • Document your origin claims
  • Revisit your customs valuation
  • Understand where your supply chain sits most exposed

Four USMCA steps for U.S. importers and exporters

A renegotiation could touch origin rules, valuation methodologies, product-specific tariffs, agricultural quotas and the timeline for the deal itself. Companies that wait for outcomes to become clearer before acting may be caught flat-footed. 

The four steps below give importers and exporters a defensible starting position, whatever the review produces. 

Review HTSUS tariff classifications

The Harmonized Tariff Schedule of the United States (HTSUS) code assigned to a product drives its duty rate, its eligibility for USMCA preferential treatment and its exposure to product-specific tariff measures. 

Misclassification is a familiar source of compliance risk and often surfaces during U.S. Customs and Border Protection audits, sometimes years after the goods entered the country.

Companies should confirm that their classifications hold up under current guidance and that supporting documentation is in place — particularly for products where classification and origin determinations interact. A renegotiation could invite closer scrutiny of both. 

Review and document USMCA rules of origin

USMCA's rules of origin determine whether a product qualifies for preferential tariff treatment, and they can influence access to tariff exceptions under recent U.S. and Canadian trade measures. 

Changes to those rules, or to how they are enforced, could shift the balance of duty revenue among the three member countries and affect which goods still qualify. 

Origin remains a top area for compliance reviews and audit activity. Companies should revisit their origin determinations, refresh supporting records and confirm that suppliers are prepared to substantiate their claims if asked. 

Revisit customs valuation methods

Most tariffs are calculated as a percentage of the imported good's declared value. Small shifts in valuation methodology can produce meaningful changes in duty exposure, especially if renegotiation raises rates or narrows preferential treatment. 

Companies should review their valuation approach, including the treatment of assists, royalties and related-party pricing, and consider whether planning opportunities exist to manage costs if USMCA preferences change. 

Diversity of North American supply chains

The prospect of annual reviews, product-specific tariffs and possible withdrawal creates a planning environment that rewards flexibility. 

Companies with heavy exposure to a single sourcing country or a single border crossing may want to model the cost and operational implications of alternative arrangements to understand their options. 

How the 2026 USMCA review and renewal process works

USMCA includes a review and renewal mechanism that determines whether the agreement stays in force past its initial term, which expires July 1, 2036.

Under that mechanism, the three signatories conduct a joint review in 2026. If they agree, USMCA's effective period extends to 2042. If they don't, the countries move to annual reviews for the remainder of the 16-year term. They can also opt for broader renegotiation.

None of this has been done before. The mechanism has never been triggered, so how the reviews or a renegotiation actually proceed—pace, scope, sequencing—is genuinely open.

USMCA also permits any signatory to withdraw with six months' notice, which adds another variable for companies planning capital investments or long-term contracts.

How U.S. and Canadian tariffs affect imports and exports

Not every tariff imposed since early 2025 carved out an exception for USMCA-originating goods, and that matters for U.S. businesses on both sides of the border.

Imports: U.S. tariffs on steel, aluminum and derivative products apply regardless of USMCA origin. Preferential treatment under the agreement does not shield American importers from those measures.

Duty drawback, foreign trade zones and bonded warehouse programs remain useful tools for managing landed cost, and each depends on the same classification, origin and valuation records a renegotiation would likely put under a microscope.

Exports: Canada's retaliatory tariffs—announced in response to U.S. measures—apply specifically to U.S.-origin steel, aluminum and automobiles.

American manufacturers, distributors and agricultural producers shipping into Canada face a direct increase in landed cost for their customers north of the border, which can affect pricing, volume and margin. Mexico's response to any future tariff moves is another variable to monitor.

How U.S. businesses can prepare for USMCA renegotiation

The clearest path through a review of this scale is preparation. Companies that keep their classifications, origin records and valuation methods current will be better positioned to respond quickly to whatever the three governments decide, and to take advantage of relief mechanisms already available.

Working with trade advisors can help identify exposure, evaluate relief options and build a plan that adjusts as the process unfolds.

RSM contributors

Related insights

Tax resources

Timely updates and analysis of changing federal, state and international tax policy and regulation.

Subscribe now

Stay updated on tax planning and regulatory topics that affect you and your business.

Washington National Tax

Experienced tax professionals track regulations, policies and legislation to help translate changes.

THE POWER OF BEING UNDERSTOOD

ASSURANCE | TAX | CONSULTING

RSM US LLP is a limited liability partnership and the U.S. member firm of RSM International, a global network of independent assurance, tax and consulting firms. The member firms of RSM International collaborate to provide services to global clients, but are separate and distinct legal entities that cannot obligate each other. Each member firm is responsible only for its own acts and omissions, and not those of any other party. Visit rsmus.com/about for more information regarding RSM US LLP and RSM International.

© 2026 RSM US LLP. All rights reserved.