Atty. Timothy Fitzsimmons

Atty. Timothy Fitzsimmons

A partner in Fasken's Toronto office, Timothy Fitzsimmons brings extensive experience in Canadian and international income tax and commodity tax, with areas of focus in audit defence, objections, litigation, appeals and dispute resolution. His practice supports a variety of industries including financial services, cryptocurrency, real estate, aviation, natural resources, transportation, health care, communications and manufacturing.

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Profile Summary

About Timothy Fitzsimmons at a glance

Timothy Fitzsimmons is a tax attorney, practicing at Fasken. Recognitions include Best Lawyers in America — Tax Law (2026).

Verified attorney profile · Updated June 2026

About

  • A partner in Fasken's Toronto office, Timothy Fitzsimmons brings extensive experience in Canadian and international income tax and commodity tax, with areas of focus in audit defence, objections, litigation, appeals and dispute resolution
  • His practice supports a variety of industries including financial services, cryptocurrency, real estate, aviation, natural resources, transportation, health care, communications and manufacturing
  • Timothy helps clients identify and manage domestic and global tax risk in M&A transactions and during the tax compliance cycle
  • This may include pre-filing reviews, coordination with tax staff/accountants, proactive reporting and disclosure, and audit management

Practice Areas Explained

Timothy Fitzsimmons's Areas of Practice

Each practice area below reflects the types of cases Timothy Fitzsimmons handles, with a brief overview of what that area of law covers.

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

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Frequently Asked

Common questions about Timothy Fitzsimmons

What practice areas does Timothy Fitzsimmons handle?
Timothy Fitzsimmons focuses on tax. Each practice area listed reflects experience handling cases of that type in their licensed jurisdictions.
How can I contact Timothy Fitzsimmons for a consultation?
You can contact Timothy Fitzsimmons directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Timothy Fitzsimmons received?
Timothy Fitzsimmons's notable recognition includes: Best Lawyers in America — Tax Law.

Practice Areas

Awards

Best Lawyers in America — Tax Law
- 2026

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