Job Description
Join Our Mission to Boldly
Reimagine Professional Services!
Better Together
Our collaboration makes us unstoppable.
Choose Opportunity
We embrace change, and push boundaries.
Own It
We take initiative, and stand behind our work.
We bring passion and commitment to everything we do.
All In
A Division of Gauvreau Accounting Tax Law Advisory
At ONBusiness and Gauvreau, we’re not just building a business—we’re building a culture that ignites passion,
fuels innovation, and drives success. We’re on a mission to boldly reimagine the professional services experience
while serving thousands of entrepreneurs nationwide.
ONBusiness is proudly rooted in Manitoba with offices in Winnipeg and Steinbach.
Our Core Values
All In — bring passion and commitment to everything we do.
Own It — take initiative, and stand behind our work.
Choose Opportunity — embrace change, and push boundaries.
Better Together — collaboration makes us unstoppable.
We’re Proud to be a Great Place to Work
Culture isn’t just something we talk about — it’s something we measure, nurture, and continuously improve. By surveying our entire team quarterly, we listen, adapt, and create an environment where people can thrive. That commitment to our people is why we continue to be recognized as a Great Place to Work® and as a leader in employee satisfaction.
We Are Growing
Over the last decade, our team has grown rapidly — from a one-person operation in 2008 to a national firm — earning recognition among North America’s Fastest Growing Companies. And we’re just getting started.
Globe & Mail Report on Business Canada’s Top Growing Companies 2020–2025
Financial Times Fastest Growing Companies 2021–2025
Our Office Environment
ONBusiness is proud to be a division of Gauvreau Accounting Tax Law Advisory, a fast-growing professional services firm with more than 200 team members nationwide. While our reach extends across Canada, our roots run deep in Manitoba. Headquartered in Winnipeg, with two locations and a fully operational satellite office in Steinbach, our local team of 40+ professionals is committed to serving clients and supporting one another in achieving success.
We’ve cultivated a relaxed, family-oriented office culture that blends small-firm familiarity with the resources and expertise of a national organization. Our student support reflects this balance — offering flexibility, hands-on mentorship from senior team members, and daily collaboration across all levels of the team. Senior management stays actively engaged, ensuring every student has direct guidance and visibility as they progress in their careers.
At ONBusiness, you won’t be stuck behind the scenes. We believe in building client relationships at every staff level, creating opportunities for our team to directly experience the impact of their work on the businesses we serve.
With a diverse client base, strong relationships, and an open office environment, ONBusiness provides an ideal learning ground for future CPAs. Our flexible support structure is designed to help students thrive as they progress through the CPA Professional Education Program, while contributing meaningfully to the success of our clients.
Our Client Base
As a division of Gauvreau , we proudly serve thousands of entrepreneurs nationwide, helping business owners and organizations maximize their impact through accounting, tax, advisory, and legal services.
As part of this network, ONBusiness brings a distinct Manitoba focus — serving entrepreneurs, professionals, corporations, and not-for-profit organizations throughout Winnipeg, Steinbach, and Southern Manitoba. This unique blend of national resources and local expertise ensures that our clients benefit from the strength of a large firm, while maintaining the accessibility and personal connection of a regional office.
For our team, this means exposure to a diverse range of industries and business structures, offering invaluable hands-on experience. Whether guiding start-ups, supporting family-owned companies, or advising established organizations, every engagement creates opportunities for growth, impact, and meaningful client relationships.
Student Experience & Support
At ONBusiness, we believe that developing future CPAs means more than just providing a desk and a deadline — it’s about building confidence, creating opportunities, and investing in your growth.
Every student is paired with a mentor for guidance, but the support doesn’t stop there. Our collaborative culture means you’re encouraged to seek advice from any team member — from peers to senior leaders — ensuring you’re never navigating challenges alone.
We back this with tangible support for your CPA journey.
By blending ONBusiness’s close-knit environment with Gauvreau’s national resources, our students gain both the personal attention of a local team and the breadth of experience from a fast-growing national firm — the best of both worlds.
Future Opportunities
At ONBusiness, the future isn’t something you wait for — it’s something you build. Our rapid growth creates opportunities for advancement at every stage, and we’re committed to ensuring our students and professionals don’t just keep pace, but thrive. With mentorship, diverse client exposure, and the backing of Gauvreau’s national platform, our team members are able to accelerate their careers and step confidently into senior roles.
Our unique approach to client relationships and service delivery means you’ll develop the skills, confidence, and credibility to establish yourself as a trusted professional within the business community — faster than you might expect.
Flexible Employment
We know that life doesn’t begin and end at the office. That’s why we’ve built flexibility into the way we work — from hybrid schedules and flex time, to tailored arrangements for students completing their university studies.
Our goal is simple: to help every team member succeed professionally without sacrificing the things that matter most personally. By supporting balance, we empower our people to show up at their best — both for our clients and for themselves.
Reporting directly to the Tax Compliance Manager of the Tax Division, you are a key member of the tax team to assist with compliance projections and other important tax-related administrative tasks. Preparation and completion of the work of the Tax Division, including communication with the CRA and other tax authorities (verbal or written), information research, and preparation of personal tax returns and preparation of trust returns. Developing and sustaining excellent client relationships are priorities for this position.
Maintaining a positive relationship with clients and the ONBusiness team.
Key role and main responsibilities as detailed below:
Prepare simple corporate, trust, and personal tax returns
Assist with the preparation of complex trust and estate tax returns, personal tax returns, and other tax forms/schedules.
Prepare supporting working papers and other tax analysis as requested by the Tax Division
Liaise directly with clients and the CRA on tax engagements
Initiate direct communications with the CRA and other tax authorities as required
Assist with the preparation of tax submissions and responses as required by the CRA or other tax authorities
Assist with obtaining authorization with the CRA on behalf of our clients
Research and follow up on various items/client issues with CRA on behalf of the Tax Department
Consultation with members of the team to resolve issues raised, where necessary
Obtaining good knowledge of ONBusiness team members and services
Reporting issues, concerns, and results to the owners on a timely basis regarding 1) the Tax Division and 2) the ONBusiness concept
Supporting and promoting the ONBusiness name and concept.
Qualifications/Skills, Experience, and Personal Attributes:
Accounting or Business degree (preferred)
Have hands-on public practice (1 to 2 years) experience in performance and completion of files for accounting, corporation tax, & personal tax for small to mid-sized clients
Experienced in general tax research, consulting and compliance
Ability to communicate general tax information and concepts to diverse audiences
Excellent written and spoken communication skills
Ability to identify tax consulting opportunities
Ability to multi-task and meet deadlines
Good knowledge of personal and corporate tax
Good knowledge of accounting
IT skills – Microsoft office (Word, Excel, Outlook), CaseWare, and Taxprep
A positive attitude with a desire to exceed expectations;
Ability to work independently
Ability to meet deadlines
Excellent time management skills (organization & prioritization)
Maintaining positive relationships with the ONBusiness team and clients
Maintain good knowledge of ONBusiness team members and services
To Apply
Follow the submission link below:
https://gauvreaucpa.bamboohr.com/careers/90?source=aWQ9MTI%3D
Reimagine Professional Services!
Better Together
Our collaboration makes us unstoppable.
Choose Opportunity
We embrace change, and push boundaries.
Own It
We take initiative, and stand behind our work.
We bring passion and commitment to everything we do.
All In
A Division of Gauvreau Accounting Tax Law Advisory
At ONBusiness and Gauvreau, we’re not just building a business—we’re building a culture that ignites passion,
fuels innovation, and drives success. We’re on a mission to boldly reimagine the professional services experience
while serving thousands of entrepreneurs nationwide.
ONBusiness is proudly rooted in Manitoba with offices in Winnipeg and Steinbach.
Our Core Values
All In — bring passion and commitment to everything we do.
Own It — take initiative, and stand behind our work.
Choose Opportunity — embrace change, and push boundaries.
Better Together — collaboration makes us unstoppable.
We’re Proud to be a Great Place to Work
Culture isn’t just something we talk about — it’s something we measure, nurture, and continuously improve. By surveying our entire team quarterly, we listen, adapt, and create an environment where people can thrive. That commitment to our people is why we continue to be recognized as a Great Place to Work® and as a leader in employee satisfaction.
We Are Growing
Over the last decade, our team has grown rapidly — from a one-person operation in 2008 to a national firm — earning recognition among North America’s Fastest Growing Companies. And we’re just getting started.
Globe & Mail Report on Business Canada’s Top Growing Companies 2020–2025
Financial Times Fastest Growing Companies 2021–2025
Our Office Environment
ONBusiness is proud to be a division of Gauvreau Accounting Tax Law Advisory, a fast-growing professional services firm with more than 200 team members nationwide. While our reach extends across Canada, our roots run deep in Manitoba. Headquartered in Winnipeg, with two locations and a fully operational satellite office in Steinbach, our local team of 40+ professionals is committed to serving clients and supporting one another in achieving success.
We’ve cultivated a relaxed, family-oriented office culture that blends small-firm familiarity with the resources and expertise of a national organization. Our student support reflects this balance — offering flexibility, hands-on mentorship from senior team members, and daily collaboration across all levels of the team. Senior management stays actively engaged, ensuring every student has direct guidance and visibility as they progress in their careers.
At ONBusiness, you won’t be stuck behind the scenes. We believe in building client relationships at every staff level, creating opportunities for our team to directly experience the impact of their work on the businesses we serve.
With a diverse client base, strong relationships, and an open office environment, ONBusiness provides an ideal learning ground for future CPAs. Our flexible support structure is designed to help students thrive as they progress through the CPA Professional Education Program, while contributing meaningfully to the success of our clients.
Our Client Base
As a division of Gauvreau , we proudly serve thousands of entrepreneurs nationwide, helping business owners and organizations maximize their impact through accounting, tax, advisory, and legal services.
As part of this network, ONBusiness brings a distinct Manitoba focus — serving entrepreneurs, professionals, corporations, and not-for-profit organizations throughout Winnipeg, Steinbach, and Southern Manitoba. This unique blend of national resources and local expertise ensures that our clients benefit from the strength of a large firm, while maintaining the accessibility and personal connection of a regional office.
For our team, this means exposure to a diverse range of industries and business structures, offering invaluable hands-on experience. Whether guiding start-ups, supporting family-owned companies, or advising established organizations, every engagement creates opportunities for growth, impact, and meaningful client relationships.
Student Experience & Support
At ONBusiness, we believe that developing future CPAs means more than just providing a desk and a deadline — it’s about building confidence, creating opportunities, and investing in your growth.
Every student is paired with a mentor for guidance, but the support doesn’t stop there. Our collaborative culture means you’re encouraged to seek advice from any team member — from peers to senior leaders — ensuring you’re never navigating challenges alone.
We back this with tangible support for your CPA journey.
By blending ONBusiness’s close-knit environment with Gauvreau’s national resources, our students gain both the personal attention of a local team and the breadth of experience from a fast-growing national firm — the best of both worlds.
Future Opportunities
At ONBusiness, the future isn’t something you wait for — it’s something you build. Our rapid growth creates opportunities for advancement at every stage, and we’re committed to ensuring our students and professionals don’t just keep pace, but thrive. With mentorship, diverse client exposure, and the backing of Gauvreau’s national platform, our team members are able to accelerate their careers and step confidently into senior roles.
Our unique approach to client relationships and service delivery means you’ll develop the skills, confidence, and credibility to establish yourself as a trusted professional within the business community — faster than you might expect.
Flexible Employment
We know that life doesn’t begin and end at the office. That’s why we’ve built flexibility into the way we work — from hybrid schedules and flex time, to tailored arrangements for students completing their university studies.
Our goal is simple: to help every team member succeed professionally without sacrificing the things that matter most personally. By supporting balance, we empower our people to show up at their best — both for our clients and for themselves.
Reporting directly to the Tax Compliance Manager of the Tax Division, you are a key member of the tax team to assist with compliance projections and other important tax-related administrative tasks. Preparation and completion of the work of the Tax Division, including communication with the CRA and other tax authorities (verbal or written), information research, and preparation of personal tax returns and preparation of trust returns. Developing and sustaining excellent client relationships are priorities for this position.
Maintaining a positive relationship with clients and the ONBusiness team.
Key role and main responsibilities as detailed below:
Prepare simple corporate, trust, and personal tax returns
Assist with the preparation of complex trust and estate tax returns, personal tax returns, and other tax forms/schedules.
Prepare supporting working papers and other tax analysis as requested by the Tax Division
Liaise directly with clients and the CRA on tax engagements
Initiate direct communications with the CRA and other tax authorities as required
Assist with the preparation of tax submissions and responses as required by the CRA or other tax authorities
Assist with obtaining authorization with the CRA on behalf of our clients
Research and follow up on various items/client issues with CRA on behalf of the Tax Department
Consultation with members of the team to resolve issues raised, where necessary
Obtaining good knowledge of ONBusiness team members and services
Reporting issues, concerns, and results to the owners on a timely basis regarding 1) the Tax Division and 2) the ONBusiness concept
Supporting and promoting the ONBusiness name and concept.
Qualifications/Skills, Experience, and Personal Attributes:
Accounting or Business degree (preferred)
Have hands-on public practice (1 to 2 years) experience in performance and completion of files for accounting, corporation tax, & personal tax for small to mid-sized clients
Experienced in general tax research, consulting and compliance
Ability to communicate general tax information and concepts to diverse audiences
Excellent written and spoken communication skills
Ability to identify tax consulting opportunities
Ability to multi-task and meet deadlines
Good knowledge of personal and corporate tax
Good knowledge of accounting
IT skills – Microsoft office (Word, Excel, Outlook), CaseWare, and Taxprep
A positive attitude with a desire to exceed expectations;
Ability to work independently
Ability to meet deadlines
Excellent time management skills (organization & prioritization)
Maintaining positive relationships with the ONBusiness team and clients
Maintain good knowledge of ONBusiness team members and services
To Apply
Follow the submission link below:
https://gauvreaucpa.bamboohr.com/careers/90?source=aWQ9MTI%3D
💡 Quick Summary
Seeking a career-building opportunity? The TAX ACCOUNTANT position is now open for candidates interested in the Back Office Jobs sector. This role in Winnipeg offers a professional environment and growth potential.
Requirement Snapshot: Candidates should possess basic communication skills, a proactive attitude, and the ability to work in a team. Experience in Back Office Jobs is a plus.
