Join the Henderson Partners Team

At Henderson Partners, our commitment to fostering talent, nurturing our culture, and celebrating achievements is at the heart of who we are. We believe that investing in our team members’ personal and professional growth is essential for their fulfillment and the long-term success of our company.

Learning, training, and development play a central role in our culture. We provide various opportunities for our employees to enhance their skills and knowledge through workshops, seminars, courses, and specialized training programs. We encourage continuous learning and support individuals in pursuing certifications and professional designations relevant to their roles. By fostering a culture of growth and development, we empower our team members to reach their full potential.

We are a team that works hard but also plays hard and finds time to have fun. We understand the importance of a good work life balance.


Current Openings

Even if we don’t currently have a specific position open, we’re always on the lookout for exceptional individuals to join our team. Send your resume to and take the first step toward an exciting future with us.


Are you seeking a workplace that values your personal and professional growth while challenging and rewarding you? Join our leading firm of CPA’s and Advisors based in Oakville as a US Tax Manager.

Our award-winning culture focuses on supporting and nurturing employees’ well-being, creativity, and career growth. We provide continuous opportunities for our team to participate in community initiatives, book clubs, professional development programs, and much more. We are proud to be Great Place to Work Certified and recognized as a Top Place to Work for Women. We also prioritize work-life balance and offer a hybrid work environment.

We are currently seeking a qualified US Tax Manager with a minimum of 8 years post certification public practice experience to join our Oakville based practice.

If you are a self-starter with strong attention to detail, exceptional interpersonal and communication skills, we invite you to join our team. 


  • Company events
  • Dental care
  • Employee assistance program
  • Extended health care
  • Flexible schedule
  • On-site parking
  • Paid time off
  • Tuition reimbursement
  • Vision care
  • Work from home

Roles & Responsibilities:

  • Plan, supervise, and execute engagements and client projects in line with professional standards and Firm policies.
  • Serve as a trusted advisor, actively involved in clients’ decision-making processes.
  • Prepare and review corporate and personal tax filings, including related tax planning.
  • Foster an efficient, innovative, and team-focused environment.
  • Conduct research on technical matters related to client situations.

Specific Skills:

  • Comprehensive understanding of US personal tax rules including the preparation of FBAR forms, Form 5471, Form 8858, Form 8938, W-8 Forms
  • Understanding of US domestic C corporate tax rules including form 5472, section 7872 issue; consolidated tax return filings
  • Understanding of IRS rules relating to Controlled Foreign Corporation; Subpart F, GILTI rules and Section 956 rules, section 382, transition tax rules of 2017
  • Comprehensive understanding of the tax rules pertaining to non-resident filers (Form 1120-F, Form 1040NR)
  • Understanding of PFIC rules
  • Understanding of Trust Filings 3520 / 3520A (grantor trusts)
  • Working knowledge of FIRPTA rules and US tax withholding rules
  • Understanding of State Nexus Rules, Public law 86-272 and Impact of Wayfair case
  • Solid accounting understanding of Accounting for Income Taxes (e.g., tax provisions)
  • Familiarity with Streamlined tax submissions,
  • Understanding of the tax expatriation rules of 877
  • Excellent knowledge of US gift tax rules and preparation of the relevant tax forms
  • Excellent knowledge of US Estate tax rules and impact of Treaty on exemption
  • Understanding of the Canada US tax treaty and permanent establishment concepts
  • Good knowledge of US partnership rules and preparation of Form 1065, K-1s

Professional & Experience Requirements:

  • CPA designation required.
  • Masters in US Tax preferred but not essential.
  • Minimum 8 years of experience specializing in tax compliance and planning.
  • Proficiency in preparing and reviewing personal, corporate, and trust returns.
  • Excellent client service skills.
  • Proficient in CCH Axcess, BNA tax research software, CaseWare, Xero Practice Management, and MSOffice.
  • Excellent written and oral communication skills.
  • Dedicated to delivering quality service and value to clients.
  • Ability to establish and maintain strong business relationships.
  • Strong project management and organizational skills.
  • Able to work independently or as part of a team.
  • Strong attention to detail.

    To apply for this opportunity, please follow this link to the job posting on Indeed and follow the application instructions.

    We thank all applicants in advance for their interest; however, only those candidates selected for an interview will be contacted.