About Ontario Tax Team
We started Ontario Tax Team in 1998 with a simple mission. Give small business owners and families in Southern Ontario expert bookkeeping, tax filing, and accounting help they can actually afford, without the stress of decoding every CRA letter alone.
Our Story
Ontario Tax Team was founded in Oakville in 1998. Samer Al-Assali started the firm with one goal. Give small business owners and individuals the same quality financial services that large corporations enjoy, without the corporate price tag.
Our office at 3148 Sixth Line, Oakville, is where most of our work still happens. The practice has grown from a one-person shop to a team of bookkeepers and accountants serving more than 100 clients across Oakville, Mississauga, Burlington, Milton, and the wider GTA. We also work remotely with clients across Canada.
Every business owner deserves to understand their numbers. We don't just crunch data. We sit down, walk you through what it means, and help you decide what to do about it before the CRA deadline lands.
Most of our clients fall into one of two camps. Contractors and small business owners who need clean books and corporate tax filed on time. Families who want a careful T1 return without the H&R Block conveyor belt. Whichever you are, the first step is the same. Call us at (905) 334-4611 or book a free 15-minute consultation through our contact page.
By the Numbers
100+
Clients Served
1998
Serving Oakville Since
4
Cities Served
Meet Our Team
Led by Samer Al-Assali, our team brings deep tax expertise to every file we touch. We also keep things personal. You'll know who's working on your return, and you can pick up the phone and reach them when you need to.
Our Values
Four principles guide how we work with every client, from a first-time T1 filer to a 20-employee Ontario corporation.
Accuracy First
Your finances demand precision. We double-check everything because your peace of mind depends on it.
Plain Language
No jargon, no confusing reports. We explain your finances in language that actually makes sense.
Proactive, Not Reactive
We don't wait for the CRA to flag something. We spot the issue early and help you fix it before it becomes a problem.
Community-Rooted
We live and work in Southern Ontario. Your success is our community's success.
Where We Work
Our office sits at 3148 Sixth Line in Oakville, and we serve clients across the western GTA in person, plus the rest of Canada by video and secure portal.
Looking for a specific service? See our full list of accounting services, including bookkeeping, corporate tax, and personal income tax.
Certifications & Affiliations
We hold credentials that back up the advice we give. Each one is current and verifiable.
Ready to Take Control of Your Finances?
Book a free 15-minute consultation and let's talk about how we can help your business thrive.