Mainville & Associates:
Eastern Ontario’s Trusted
Accounting Partner

Making your financial journey seamless,
ensuring compliance, understanding results,
and keeping your employees results.

Keep your books in order

Bookkeeping
Reliable, up-to-date records so you know where your business stands and have the information you need when you need it.
Learn more about our Bookkeeping Services →

Take care of your people

Payroll
Accurate, dependable payroll support that helps you pay employees properly and stay on top of your reporting obligations.
Learn more about our Payroll Services →

Make tax time simpler

Personal Tax
Informed and skilled preparation and guidance to help help individuals and families navigate their annual tax filing with confidence.
Learn more about our Tax Preparation Services →

Keep your business tax-ready

Corporate Tax
Corporate Tax Preparation and ongoing support to help your business meet its filing and compliance needs.
Learn more about our Tax Preparation Services →

Stay on top of GST/HST

GST/HST
Help with calculation, reporting and filing so your sales tax obligations don’t become another thing to worry about.
Learn more about our GST/HST Services →

Understand the numbers behind your business

Business Advisory Support
Practical financial insight and support when you need to make decisions, solve problems or plan what comes next.
Learn more about our Advisory Services →


We believe accounting and tax services should help you understand your financial picture – not make make it more complicated. Mainville & Associates combines experienced, personal service with practical systems designed to keep you organized, informed and prepared.

Learn more about Mainville & Associates →

What People Are Saying


Alain Mainville has been working with our Fund since January 2014. He offers a high-quality accounting service. He has truly improved our accounting system, putting in place rigorous controls. His assistant, Lyse Longtin, designed Excel spreadsheets, which record clearly and concisely all the money coming from commercial broadcasters. So it’s an excellent team that we have engaged. It is also a great asset for me to present to my Board of Directors the Financial Statements prepared in accordance with generally accepted accounting principles.
– Jean Malavoy

Executive Director,
Community Radio Fund
of Canada


Unity Sod Farm Ltd. has worked with Mainville & Associates/Associés Inc. since 2002 and are very satisfied with their work. They are very professional and have the expertise required to get the job done. They familiarized themselves with our business operations and keep up with changes and trends in our industry. They provide us with sound financial advice suited to the specifics of our business. I highly recommend Mainville & Associates/Associés Inc. for your business or personal accounting.
– Bernard Henderson

Director,
Unity Sod Farm Ltd.


Alain has been serving our company since 2001 as an accountant/bookkeeper in the company’s accounting department. His expert and professional advice has been extremely valuable to our company. He is very dependable and works well under pressure. Tax season can be quite a demanding time but Alain has proven over the years how well he works under these conditions. Alain is a very proud family man; he is involved in his community, friendly and highly respected by everyone. We strongly recommend Alain without hesitation. He will be an enormous asset to any business. – Gerry, Mike & Dan

Lawrence’s Dairy Supplies Inc.

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