Senior Manager, National Tax

Who We Are
You know those big cities that still feel like small towns? Where everyone's friendly and helps each other out? That's like Doane Grant Thornton. Except here we're all professionals and there isn't a mayor or a general store. What we're trying to say is that we're a large and growing professional services firm that still feels like a community. We employ about 3000 people across Canada, and we truly care about our colleagues, our clients and the communities where we work and live. That's what's most important to us. We're building a thriving organization that's purpose driven and still want to remember what your favourite milkshake flavour is.

Doane Grant Thorntons' National Specialty Tax practice is dedicated to delivering focused and strategic tax solutions across Canada. Comprised of four specialized tax service lines—Indirect Tax, Research Development and Government Incentives, Cross-Border Personal Tax, and U.S. Corporate Tax—this team brings together deep technical expertise and industry insight to address complex tax matters.

As a cohesive national team, the Specialty Tax practice works collaboratively across all Doane Grant Thornton offices, ensuring clients receive consistent, high-quality service regardless of location. This integrated approach allows the team to draw on the strengths of professionals from across the country to effectively support clients in navigating the evolving tax landscape.

We are seeking an experienced and strategic
Senior Manager
to join our National Tax team, focusing on enhancing and supporting the capabilities of our Specialty tax practice. This role will provide leadership and coordination across a broad set of functional areas, including changes to tax law, internal and external communications, learning and development, process efficiency, risk management alignment, and technology enablement. The ideal candidate will be a collaborative, solutions-oriented professional with strong tax expertise and a passion for driving innovation and consistency across a dynamic and growing team.

As a Senior Manager, National Tax your responsibilities will include but may not be limited to:

• Tax Law Updates & Communication
• Track and analyze changes in tax legislation and policy.
• Collaborate with tax service lines to assess implications and identify opportunities.
• Develop internal and external communications including thought leadership, client alerts, and educational materials.
• Learning & Development
• Partner with service line leaders to design and implement targeted training for specialty tax professionals.
• Contribute to broader firm-wide tax education initiatives.
• Ensure content is relevant, up-to-date, and aligned with business objectives.
• Process Optimization & Knowledge Management
• Lead the creation and management of a document library and standardized working paper templates.
• Develop and implement best practices and solutions that drive efficiency across all service lines.
• Foster consistency and scalability in processes and tools.
• Risk Management & Compliance
• Collaborate with Risk Management partners to maintain consistent risk protocols across service lines.
• Ensure the Tax Services Manual is current and reflects Specialty Tax needs.
• Support integration of risk processes for merged-in firms.
• Technology Implementation & Evaluation
• Support deployment of firm-wide tax technologies to specialty tax teams.
• Evaluate emerging tax technologies that improve service line productivity or create client value.
• Act as a liaison between tax teams and firm technology leadership.
• Operational Support
• Provide ad hoc support to service lines including license renewals, PTIN tracking, and conference planning.
• Manage and streamline routine processes as needed.

Doane Grant Thornton
If you're a bit like us, you're driven to connect with how others are feeling and thinking. Here we walk in others shoes before taking action. Just imagine being part of a team that puts "we before me", where flexAbility is a mindset, and where you trust your colleagues to have your back. At Doane Grant Thornton, you'll work with inspiring leaders who support your development, both personally and professionally. This is a place where your insatiable curiosity enables you to think, see and hear from a variety of perspectives, a place where every day is different and having the courage to grow is part of who you are. And when all this comes together, well that's when the magic happens

Want to learn more about who we are and how we live our purple every day? Read our colleagues' stories at
Think you've got what it takes to be a Senior Manager, National Tax (Specialty Tax)? Like the colour purple? Great. Here's a few more boxes we're also hoping you can tick:

• CPA designation or equivalent required.
• Minimum 5 years of senior-level experience in a professional tax environment.
• Proven commitment to excellence in client service and professional standards.
• Strong ability to work independently, manage multiple priorities, and engage with stakeholders at all levels.
• High degree of business acumen and a proactive, creative approach to problem-solving.
• Demonstrated success as a collaborative team player with strong interpersonal skills.

At Doane Grant Thornton we're focused on making a difference in the lives of our clients, our colleagues and our communities. That's our purpose. Or, as we like to say, living our purple.

What's in it for you?
Profit sharing, Flex days, RRSP contributions, Firmwide holiday closure, Wellness benefits, Concierge-like benefits, Work from anywhere in Canada in the summer for 4 weeks, and more

Our special culture shines through when we have the opportunity to connect in person. That's why we're working in a model where teams are required to be together in the office 4 days per week.
Are you ready to Discover Your Purple?
Doane Grant Thornton is committed to employment equity, human rights and respectful workplace principles throughout the life cycle of employment, including at the recruitment and hiring stages. We welcome applications from members of all equity deserving groups, including persons with disabilities, women, racialized and/or Indigenous applicants. Should you require accommodation in relation to the recruitment process, please notify us by emailing and we will work with you to meet your accommodation needs.