The joint review required under CUSMA's six-year review clause opens July 1, 2026. CTI is tracking negotiation signals, tariff developments, and bilateral policy moves as they emerge.
Review opens: July 1, 2026 · 6-year clause under Article 34.7
STATUS · MAY 2026
Negotiations active — clean extension by July 1 increasingly unlikely
The review formally opens July 1, 2026. Experts and trade officials now consider a clean 16-year extension unlikely. The most probable outcome is a prolonged negotiation extending into late 2026 or 2027, with Canada and Mexico making targeted concessions on autos, energy, and supply chain rules while preserving the agreement's core architecture.
Trump has called CUSMA "transitional" and the US Trade Representative has stated a rubber-stamp renewal is "not in the national interest." Prime Minister Carney has signalled willingness to negotiate constructively, including defence spending commitments, while pursuing trade diversification to reduce Canada's US exposure.
MOST LIKELY — Painful extension, late 2026+POSSIBLE — Annual review cycle, sustained uncertaintyRISK — Non-renewal triggers 2036 termination
Sources: CSIS, Brookings, Globe and Mail, CBC — updated May 2026
WHAT THIS MEANS FOR CANADIANS
Your market access is not guaranteed after July 2026
If the review stalls or enters annual renewal cycles, the certainty that lets you price contracts and plan production disappears. Auto parts suppliers face the most direct exposure — 75% North American content rules are under renegotiation. Lumber and steel exporters are already operating under Section 232 tariffs regardless of CUSMA status.
Dairy supply management and canola access are both on the table
US dairy industry groups have filed an 84-page complaint on Canada's TRQ allocation. A concession here would affect Canada's $5.4B domestic dairy sector and set a precedent. Canola access to the US market depends on CUSMA remaining intact — a non-renewal or prolonged uncertainty period creates direct price and logistics risk for Prairie producers.
Tariffs exist now — CUSMA review won't remove them
The current 25% tariff on most Canadian goods entering the US was imposed under IEEPA emergency powers, separate from CUSMA. Even a successful CUSMA renewal does not automatically eliminate these tariffs. The review and the tariff situation are parallel tracks. Understanding both is essential for supply chain planning.
What share of your revenue comes from US customers or contracts?
What this means for your business
Key risks to watch
Actions to take now
Timeline:
Mexico factor
Note: Mexico is the third CUSMA party. Mexican competition affects Canadian exporters in autos (lower RVC production costs), agri-food (year-round produce supply to US), and manufacturing. Mexico's negotiating priorities include preserving CUSMA's labour chapter gains and protecting its manufacturing export base — broadly aligned with Canada on maintaining the agreement.
This tool provides a general assessment based on publicly available information about the CUSMA 2026 joint review. It is not legal or investment advice. Consult a trade lawyer or advisor for decisions affecting your specific business. Profiles updated May 2026.
What the CUSMA review is
Under Article 34.7 of the Canada-United States-Mexico Agreement, the three parties are required to jointly review the agreement no later than six years after entry into force — which was July 1, 2020. The joint review is not an automatic renegotiation, but it creates a formal window for any party to request modifications, and it serves as an exit trigger: if a party is dissatisfied, it can begin a process that could lead to termination of the agreement after a further notice period.
Canada already made one significant concession in 2025 — the digital services tax was withdrawn to preserve CUSMA's duty-free treatment. The 2026 review is expected to involve US pressure on Chapter 19 (dispute resolution), the dairy supply management system, the de minimis threshold, and technology content rules for auto manufacturing. Canada's negotiating position will define its trade relationship with the US for the next decade.
THE THREE PATHS
MOST LIKELY
Prolonged negotiation — painful extension
No deal by July 1. The agreement stays in force under existing terms while negotiations continue into late 2026 or 2027. Canada and Mexico make targeted concessions on autos, energy proportionality, and China trade disciplines. The core agreement survives, but investment uncertainty persists throughout the negotiation period. This is what most market analysts are currently pricing in.
Impact: Sustained uncertainty for manufacturers planning multi-year contracts. No immediate change to tariff exposure.
POSSIBLE
Annual review cycle — agreement survives, under cloud
No deal reached in 2026. The agreement enters yearly renewal cycles instead of the 16-year extension. CUSMA stays in force but faces annual political brinkmanship. Long-term investment bets on North American supply chains become harder to justify. This scenario benefits neither Canada nor the US economically but may suit a US administration that prefers ongoing leverage.
Impact: Business planning horizon compresses to 12 months. Hardest on sectors requiring long-term capital investment.
RISK
Non-renewal — 2036 termination countdown begins
If any party signals non-renewal by July 1, 2026, a ten-year countdown to CUSMA termination begins, ending July 1, 2036. This does not mean immediate tariffs or trade barriers — existing terms continue for a decade. But it triggers a fundamental renegotiation on all terms, removes the legal certainty that underpins North American supply chains, and signals a structural break in the Canada-US economic relationship.
Impact: Most disruptive long-term scenario. Unlikely but not dismissible given current political environment.
SIGNAL LOG — UPDATED AS DEVELOPMENTS OCCUR
May 2026
Carney-Trump White House meeting — defence and trade discussed
Prime Minister Carney met President Trump at the White House on May 6, 2026. Carney committed to a "step change" in Canadian defence investment, including 2% GDP by March 2026 and 5% by 2035. Carney acknowledged it is unlikely Canada will secure a tariff-free trade deal, signalling acceptance that some tariffs will remain regardless of CUSMA outcome. The meeting confirmed both sides are engaging but no CUSMA-specific framework was announced.
Diplomatic
Apr 2026
US Trade Representative signals Chapter 19 reform as a priority
USTR spokesperson confirmed in April 2026 that the US sees the joint review as an opportunity to reform Chapter 19 — the binational panel dispute resolution mechanism that has historically benefited Canada in softwood lumber and other disputes. Canada's trade law community has flagged this as a significant risk: Chapter 19 removal would shift disputes to US domestic courts, eliminating a key Canadian procedural advantage.
Risk
Mar 2026
Canada files Chapter 19 panel request on softwood lumber CVD
Canadian softwood lumber producers, led by the BC Lumber Trade Council, filed for a CUSMA Chapter 19 dispute panel review of the 14.54% combined CVD/ADD in January 2026. The panel was constituted in March. A ruling is unlikely before late Q3 2026, but the filing establishes Canada's legal position heading into the broader joint review.
Dispute filed
Feb 2026
US presses on dairy — 84-page supply management complaint circulated
A 84-page US dairy industry brief was circulated to USTR in February 2026 alleging ongoing Canadian supply management violations — specifically the allocation of TRQ (tariff rate quota) licenses favoring domestic processors. The US dairy sector, backed by Senators from Wisconsin and New York, is expected to make this a central ask in the joint review. Canada has defended supply management in every trade agreement and is expected to do so again.
Risk — Dairy
Jan 2026
Digital sales tax withdrawal — CUSMA duty-free access preserved
Canada formally withdrew the digital services tax (DST) in January 2026 following US pressure, preserving Canadian goods' duty-free access under CUSMA. The DST would have collected approximately C$2.1B annually from US tech companies. The concession was widely interpreted as Canada's first pre-emptive move ahead of the joint review — signaling a willingness to trade policy instruments to protect core trade access.
Concession made
Nov 2025
US de minimis threshold — Canada watching Congressional proposals
US Congressional proposals to lower the US de minimis threshold from US$800 to US$200 for e-commerce imports passed the House in November 2025 and are pending Senate consideration. If enacted, the change would significantly increase compliance costs for Canadian e-commerce businesses selling into the US market and could be used as a CUSMA negotiating signal. Canada's retail and e-commerce sector associations filed a joint brief to Global Affairs Canada in December 2025 requesting active opposition.
Signal — E-commerce
Sectors at stake — Canadian exposure by CUSMA chapter
Softwood Lumber
Chapter 19 dispute mechanism at risk
C$11B annual export. Chapter 19 removal would shift to US courts. Current CVD of 14.54% already at issue. BC producers are most exposed.
Dairy / Agri-food
Supply management TRQ allocation under pressure
Canadian dairy supply management faces US complaints on TRQ license allocation. Concession here would affect ~$5.4B domestic dairy industry and set a precedent for future agricultural trade.
Advanced Manufacturing / Auto
Regional value content and EV battery rules
CUSMA's auto RVC rules require 75% North American content. EV battery supply chains involving Chinese materials create compliance risk. US may seek tighter rules timed to IRA incentive structures.
Technology / Digital
Data localization and platform liability alignment
CUSMA Chapter 19 digital trade provisions prohibit data localization requirements. Canada's Online Harms Act and AI regulation create potential friction points. De minimis threshold affects C$4B+ in cross-border e-commerce annually.
Energy
Proportionality clause — energy export commitments
CUSMA retains the NAFTA proportionality obligation requiring Canada to maintain US access to Canadian energy at historical proportions. As LNG exports to Asia grow, this clause constrains Canada's ability to redirect energy export destinations.
Financial Services
Chapter 17 — financial services market access
CUSMA Chapter 17 provides Canadian financial institutions with US market access. Potential US pressure to expand reciprocal access to US firms in Canadian banking and insurance — relevant to Canada's systemically important banks and insurance sector.
CUSMA developments in CTI weekly reports
CUSMA negotiation signals appear across all six CTI sector reports — softwood lumber in Advanced Manufacturing, dairy in Agri-food, Chapter 19 in Critical Minerals, auto content in Advanced Manufacturing and Technology. The weekly reports are the primary signal feed for this tracker.
CTI tracks CUSMA developments every week across all six sector reports. Signals on lumber, dairy, autos, energy, and digital trade appear in the relevant sector brief the Tuesday after they emerge.