Three Canadian flags in front of a business building
Three Canadian flags in front of a business building
Three Canadian flags in front of a business building

McMillan’s Tax Group is a leading source of tax advice in Canada, engaging with companies from a range of industries, including the financial, automotive, pharmaceutical, private equity and natural resources sectors. As one of the top tax law firms in Canada our tax lawyers have been recognized as leading advisers by The International Tax Review, The Martindale-Hubbell Legal Directory, The Legal 500 and The Canadian Legal LEXPERT Directory.

With expertise in substantive tax law, tax administration, court procedure and tax policy, our tax team prioritizes understanding the clients’ business objectives to provide effective advisement and minimize the tax risk associated with our clients’ domestic and international business activities.

McMillan’s tax lawyers are recognized leaders in helping clients manage complex sales and commodity tax challenges. We provide clients with pragmatic advice on matters relating to customs duties, harmonized sales tax (HST), goods and services tax (GST), Quebec sales tax, British Columbia provincial sales tax, federal excise tax and duties, provincial land transfer taxes and other provincial taxes, such as those on gasoline, fuel and tobacco.

Our expertise doesn’t stop at the 49th parallel. McMillan’s Tax Group is one of Canada’s leading cross-border taxation practices with extensive experience implementing a full range of cross-border transactions, including mergers and acquisitions, financings, reorganizations and spin-offs.

McMillan provides comprehensive Canadian business tax advice on:

  • International tax law advisement and planning for Canadian enterprises
  • Optimizing the tax efficiency of foreign enterprises’ Canadian operations
  • Guiding the tax structuring of mergers and acquisitions, and commercial reorganizations
  • Transfer pricing matters
  • Tax-efficient structuring of corporate finance and capital markets transactions
  • Sales and commodity taxation matters, including GHT/HST compliance measures and ruling requests, voluntary disclosures, audits, objections and appeals, and advising on specialized tax legislation
  • Advance ruling requests, voluntary disclosures, audits, objections and appeals
  • Federal and provincial payroll taxes.

We also advise clients at every stage of the tax dispute resolution process, from audits through to administrative appeals and court challenges, routinely enjoying great success in resolving tax disputes with Canada’s federal and provincial revenue authorities.

McMillan’s Tax Litigation and Advocacy team combines expertise in tax administration, court procedure, substantive tax law and tax policy to assist with audits, and provide expert advice on administrative appeals and court challenges. Our tax litigators are tireless advocates as well as highly experienced practitioners with broad tax litigation experience gained from appearing before all levels of Canadian courts.

Deals and Cases

Insights (10 Posts)View More

Featured Insight

The United States Challenges Canada’s Digital Services Tax

On August 30, 2024, the United States challenged Canada’s Digital Services Tax under CUSMA. The dispute implicates billions of dollars in Canada-US trade.

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Sep 18, 2024
Featured Insight

Federal Court Orders CRA to “Reconsider” an Assessment: Milgram Foundation v Canada (Attorney-General), 2024 FC 1405

Comment on Federal Court decision in Milgram Foundation—a remarkable victory by a taxpayer against the Canada Revenue Agency.

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Sep 11, 2024
Featured Insight

What Canadian Businesses Need to Know About the New Tariffs on Chinese Steel, Aluminum and Electric Vehicles (or: Why Your Next EV May Come with a Side of Surtax)

On August 26, 2024, the Government of Canada announced trade measures targeting Chinese imports such as electric vehicles and steel & aluminum.

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Aug 28, 2024
Featured Insight

No “One-Stop Shopping” to Resolve Tax Disputes: SCC Decisions in Dow Chemical and Iris Technologies

The Supreme Court of Canada rejects a bid to expand the jurisdiction of the Tax Court of Canada, holding that any reform will have to come from Parliament.

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Jul 30, 2024
Featured Insight

Court Upholds Shareholder-Employee Loan to Acquire a Residence

Discussion of a recent Court decision that a loan to an owner-manager to refinance his home was not a "shareholder benefit".

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Jun 19, 2024
Featured Insight

Budget 2024: Legislative Changes of Note for Investment Funds

In Budget 2024, the Government acknowledges that the restrictions placed on the property that may be held by registered plans have become unduly complex.

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Apr 19, 2024
Featured Insight

Budget 2024: Clean Energy Incentives and Resource Sector Measures

Budget 2024 prioritizes Canada’s transition to a net-zero economy and contains several measures aimed at facilitating that ongoing transition.

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Apr 19, 2024
Featured Insight

Budget 2024: Synthetic Equity Arrangement Restrictions Tightened

Budget 2024 proposes to tighten the “synthetic equity arrangement” anti-avoidance rule by eliminating the no “tax-indifferent investor” exception.

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Apr 19, 2024
Featured Insight

Budget 2024: Increases in the Taxation of Capital Gains

Budget 2024 proposes to significantly change how capital gains are taxed under the Income Tax Act (Canada).

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Apr 19, 2024
Featured Insight

Budget 2024: Expanded Relief for Non-Resident Service Providers

Budget 2024 will expand the circumstances under which relief may be granted from withholdings on payments made to non-residents that render services in Canada.

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Apr 19, 2024