Tax Manager

Modaxo ‚Ä¢ Mississauga, ON ‚Ä¢ Full Time

Posted on Sun, Aug 9, 2026

Job Summary:

Modaxo is the people transportation software division of Constellation Software Inc. (TSX:CSU). Modaxo acquires, strengthens, and grows software and technology companies enabling the daily movement of people.
Ours is a dynamic, evolving environment. In a ‘typical’ year, it would be reasonable to expect multiple Acquisitions; probably including at least 1 in a new jurisdiction; plus an organic growth initiative into a new geography; plus a legal or management re-structure within one of our Regions. Layer on top of this the changing tax legislative landscape and you quickly find a demanding and stimulating role.
We recognize the potential for Tax structure and strategy to add significant value in an acquisitive group. We are inclined to consider creative and complex approaches, where the returns outweigh the risks. The voice of this role will be clearly heard in the deal-planning phase.
Position Overview:
We're seeking a Tax Manager to join our growing tax team. The successful candidate will be a technically strong Canadian tax professional who is ready to broaden their experience into US and international tax. This role provides exposure to cross-border M&A diligence and post-acquisition integration, making it an ideal platform for a CPA who wants to develop beyond purely domestic work.
Reporting to the Global Senior Tax Manager, you will sit at the centre of a high-activity tax function supporting an acquisitive multinational group. You will work closely with finance teams across multiple jurisdictions, manage external advisors, and gain hands-on involvement in live transactions.
This role suits someone who possesses meticulous attention to detail, thrives on delivering results, excels at recommending solutions to complex tax challenges, and is comfortable working flexible hours within a dynamic, high-growth environment. Strong interpersonal skills and a proactive, self-starting attitude are essential. Your exceptional organizational skills ensure nothing is overlooked. As a collaborative team player, you work seamlessly with others but can also drive projects to completion independently when necessary.

Job Description:

Compensation Range

Minimum Rate

$ 100,000.00 CAD

Maximum Rate

$ 120,000.00 CAD

This Job Posting is for a current vacancy within our organization. AI tools will not be used at any stage of the screening, assessing or selection process. Should you be interviewed for this role, you will be notified within 45 days of the status of your application.

Duties & Responsibilities:

Responsibilities will include, but are not limited to the following:

Oversee the consolidated tax provision process for the quarterly and annual financial reporting and related tax disclosures in accordance with IFRS – IAS 12.
Prepare Canadian corporate tax filings including T2, T106, T1134.
Prepare US Federal tax returns and supporting workpapers.
Co-ordinate with our global finance teams to ensure international tax filings are accurately completed and timely filed.
Conduct tax due diligence as part of the M&A transaction process including identifying risks, mitigating factors, and providing overall tax structuring advice.
Assist in tax research for complex tax issues and planning assignments incorporating tax laws of multiple North American and foreign jurisdictions.
Interface with tax authorities, including assisting in the coordination of tax audits and preparation of responses.
Coordinate complex tax issues and prepare memos to support restructuring, technical issues, and/or filing positions.
Participate in the integration of new acquisitions, including roll out of tax compliance processes, corporate financial systems, reporting requirements, and governance standards.
Keep current with the latest tax developments and issues that impact the organization such as analyzing new or changed tax legislation, court decisions, rulings, etc.
Manage ad-hoc day-to-day issues as escalated by the group finance teams.

Qualifications and Experience Required:

Accounting designation (CPA or equivalent)
Post-secondary degree with a major in accounting or finance
Minimum 4+ years of progressive tax experience, with a strong foundation in Canadian corporate income tax, ideally combining public accounting and industry.
Experience in the preparation and review of quarterly tax provisions under IFRS.
Experience in the preparation and review of complex Canadian tax returns.
US tax experience is not required — a willingness to learn is what matters.
Familiar with preparing basis and surplus calculations.
Completion of the CICA In-Depth tax program an asset.
Software industry experience an asset.
Strong working knowledge of computerized accounting systems (i.e. BPC, NetSuite), TaxPrep, and Microsoft Office applications, particularly Excel

Worker Type:

Regular

Number of Openings Available:

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