21 September 2026

Americas Tax Roundup | 21 September 2026

 
 

A summary of the top weekly tax developments in the Americas

 
 
      
 

     This week's tax news from the Americas

  • Canadian government announces new productivity mega deduction for capital investments
    The Canadian government has proposed a productivity mega deduction that would permanently allow taxpayers to immediately expense eligible capital property acquired after 14 September 2026, expanding coverage from approximately 15% to about two-thirds of capital asset investments. Eligible taxpayers generally could deduct the full cost when property becomes available for use, subject to certain exclusions. Qualified liquefied natural gas equipment would receive permanent immediate expensing, and the proposed emissions-intensity test would be removed so qualified equipment would be eligible for immediate expensing and related buildings would qualify for accelerated depreciation.
  • Canada implements counter-tariffs
    In two orders-in-council (SOR/2026-186 and SOR/2026-187) released 7 September 2026, the Canadian government implemented the counter-tariffs announced on 25 August 2026 in response to US tariffs imposed on Canadian goods. The measures cover CA$27.6b in imports from the United States and focus on sectors most affected by the US tariffs. Effective 8 September 2026, SOR/2026-186 imposes surtaxes of 15%, 25% or 50% on specified US-origin goods, including certain dairy products, appliances, agricultural equipment, pulp and paper products, electronics, clothing, furniture and other consumer and industrial goods. The surtax applies to the goods' value for duty. Also, effective 8 September 2026, SOR/2026-187 increases the surtax on most US-origin steel and aluminum products covered by the existing Steel and Aluminum Order from 25% to 50%. Only specified aluminum and steel products remain subject to the 25% rate, and goods that were in transit to Canada on the effective date remain subject to the previously applicable rate.
  
 
 

      This week's newsletters

  • Trade Lines - 11 September 2026
    Our trade newsletter for global business leaders delivers timely insights into the issues shaping global commerce—from tariff shifts and supply chain disruptions to legislative developments and compliance trends.
  
 
 

      Upcoming EY webcasts

A calendar of all upcoming EY webcasts is available.

  
 
 

      Recent EY podcasts

All episodes of the EY Cross-Border Taxation Spotlight and
EY Talks Tax are available through Apple podcasts.

  
 
 

 
     This week's EY Global Tax Alerts

     Americas

     Europe

     Oceania

  
 
 

 
     This week's EY Industry publications

     Banking and Capital markets

     Consumer products and Retail

     Power and utilities

     Tax

     Trade

  
 
 
 

Additional resources

EY Global Tax News Update
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EY Guides available for download
Browse our in-depth guides covering corporate tax, indirect tax, personal taxes, TP and other tax matters in more than 150 countries.

Comments. If you have any questions or suggestions about this newsletter, please email Tax News Update Help at: ustaxalertshelp@ey.com.

 
 
 
 

About Americas Tax Roundup

Published by NTD's Tax Technical Knowledge Services Group, Washington, D.C.
Jennifer Mannetta, writer and editor

Distributed weekly to all Americas Tax personnel.

 
 

Document ID: 2026-1990