ARTICLE
3 October 2025

Cross-Border Tax: How Trump's 'One Big Beautiful Bill' (OBBB) Will Affect Canadians With American Income, Investments, Business Operations

RS
Rotfleisch & Samulovitch P.C.

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Rotfleisch Samulovitch PC is one of Canada's premier boutique tax law firms. Its website, taxpage.com, has a large database of original Canadian tax articles. Founding tax lawyer David J Rotfleisch, JD, CA, CPA, frequently appears in print, radio and television. Their tax lawyers deal with CRA auditors and collectors on a daily basis and carry out tax planning as well.
The U.S. recently enacted the One Big Beautiful Bill (OBBB), a major tax reform affecting individuals and corporations. While primarily U.S.-focused, the legislation has important consequences for Canadians with U.S. income, investments, or business operations.
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Introduction: Understanding the U.S. One Big Beautiful Bill for Canadians

The U.S. recently enacted the One Big Beautiful Bill (OBBB), a major tax reform affecting individuals and corporations. While primarily U.S.-focused, the legislation has important consequences for Canadians with U.S. income, investments, or business operations. Working with a seasoned Canadian tax lawyer can help ensure compliance and maximize planning opportunities in light of these changes.

U.S. Individual Tax Measures Affecting Canadians

Canadian residents earning U.S.-sourced income should review new U.S. withholding requirements, which may be affected by updated tax brackets and credits under the OBBB. Adjustments in withholding can prevent unexpected tax liabilities and cash-flow challenges.

The expansion of the U.S. Child Tax Credit generally does not benefit Canadian residents unless they meet specific U.S. eligibility criteria. Knowledgeable Canadian tax lawyers recommend evaluating eligibility carefully for cross-border families.

Higher U.S. estate and gift tax exemptions may impact Canadians owning U.S. property or shares of U.S. businesses. Proper planning with an experienced Canadian tax lawyer familiar with cross-border estate rules can help mitigate potential double taxation.

Corporate Tax Changes in the U.S. with Implications for Canadians

Permanent corporate tax reductions, including the 21% flat C corporation rate, affect Canadian businesses operating in the U.S. Tax-efficient structuring and transfer pricing strategies are critical to maximize after-tax profits.

Enhanced U.S. R&D and bonus depreciation rules can provide timing and deduction opportunities for Canadian-owned U.S. subsidiaries. Coordination with Canadian SR&ED credits and other incentives ensures optimal overall tax efficiency.

Pass-through entities with Canadian partners may experience unique tax implications under the 20% deduction and new reporting rules. A seasoned Canadian tax lawyer can provide guidance on structuring, compliance, and tax planning to minimize exposure and expense.

Strategic Cross-Border Tax Planning for Canadians

Cross-border tax planning is essential for Canadians to align investments and business operations with both U.S. and Canadian tax laws. Permanent U.S. corporate and individual rates create opportunities to optimize timing of distributions, reinvestment, and profit repatriation.

Canadians should also revisit estate and succession plans for U.S. assets. The higher U.S. exemptions can be leveraged in coordination with Canadian planning strategies to reduce overall estate tax liability.

Pro Tax Tips for Canadians with U.S. Exposure

  • Work with a knowledgeable Canadian tax lawyer to coordinate cross-border filings and ensure compliance with U.S. and Canadian reporting requirements.
  • Review withholding arrangements on foreign dividends, interest, and royalties to minimize unnecessary tax leakage.
  • Consider timing capital expenditures and R&D activities to optimize deductions in both countries.
  • Reassess business structure, particularly for U.S. subsidiaries or partnerships, to ensure tax efficiency.
  • Integrate U.S. exemption increases into estate and succession planning strategies for cross-border holdings.

Frequently Asked Questions About U.S. Tax Changes for Canadians

Do Canadians qualify for the U.S. Child Tax Credit?

Generally, no. Only Canadians who are U.S. citizens or meet specific U.S. eligibility requirements may benefit.

How does the permanent 21% U.S. corporate rate affect Canadian-owned subsidiaries?

It provides long-term certainty, but effective planning with an experienced Canadian tax lawyer is critical to optimize after-tax results.

Are pass-through entities complicated for Canadian investors?

Yes. The 20% deduction and reporting requirements necessitate careful cross-border planning to mitigate double taxation in Canada.

Do U.S. estate tax exemptions impact Canadians with U.S. property?

Yes. Higher exemptions reduce U.S. estate tax exposure, but Canadians must consider treaty provisions and reporting requirements.

Should Canadians adjust business or investment strategies due to the OBBB?

Absolutely. Consulting with a seasoned Canadian tax lawyer ensures planning strategies align with both U.S. and Canadian tax law.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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