Tax Services

We focus on understanding your personal and corporate situation to help minimize your taxes. Get experienced, reliable support with all your tax needs — we do that.

Personalized Tax Services

Life brings big milestones such as starting a family, buying a home, or preparing for retirement, and each comes with important tax considerations. Our experienced CPAs provide thoughtful planning and precise filing for individuals in all situations, offering fresh ideas to optimize your tax position and protect your assets.

Corporate Tax Services

Need help navigating complex tax legislation? Our approachable team ensures your corporate tax filings are accurate, compliant, and always up to date. Your business works hard, and your tax strategy should reflect that. Whether you need support with year-end filings, tax season preparation, or guidance through a major transition such as a sale or acquisition, we’ll help you minimize your tax burden and maximize the rewards of your hard work.

Integrated Solutions for
Small Business Owners

Looking for personalized tax advice? We help align your corporate and personal taxes to fit your goals. Smart tax planning protects wealth and unlocks new opportunities. We design holistic strategies for individuals, families, and businesses of all sizes, leveraging technical expertise to navigate an evolving tax landscape. Our focus is on long-term, compliant solutions that help you keep more of what you earn and strengthen your financial future.

Special Tax Services

Restructuring your tax matters? We simplify complex processes such as business succession planning, estate freezes, reorganizations, and transactions requiring rollovers and elections. In today’s unpredictable financial landscape, complex tax challenges demand creative and compliant solutions. Our team provides targeted strategies to help you manage risk, seize opportunities, and turn uncertainty into a competitive advantage, ensuring your business is positioned for long-term success.

Over the years, we’ve built a strong network of trusted professionals to assist with highly specialized or complex tax and estate situations, ensuring our clients always have access to the right expertise when they need it most.

Client Testimonials:

Russ and Terri-Lynn Parsons,
Tilt Contracting Ltd.

Lorenzo Pederzani,
Westmount Wealth Management Inc.

Morgan Carey,
Real Estate Webmasters

We’ve been clients of DI&A for over 25 years, and they’ve supported us throughout every stage of our growth. They helped me transition from having a minority stake in the company into the sole shareholder, and have played a key role in our expansion and restructuring since then. Don, Kyle and their team have handled our annual filings, reorganizations, and ongoing tax planning with professionalism and efficiency. As we now prepare to bring in the next generation of corporate owners, we continue to rely on their guidance and expertise.

I’ve had the pleasure of working with Don, Steven and their team for the past five years, both for our own tax advisory and filing needs as well as on shared client matters. I greatly value their deep expertise and straightforward approach as we’ve navigated complex tax issues for our business and for our clients.

I’ve worked with Dougan Irwin & Associates for over 20 years, and they’ve played a key role in supporting our growth from a small operation into a leading Canadian web and marketing company. Don and Steven don’t just handle compliance — they truly understand our business model, revenue streams, and the complexities of operating and growing a SaaS-based business. From strategic tax planning to major structural decisions and reorganizations, they’ve helped us navigate critical moments in a way that supported sustainable growth and protected our long-term interests. Their proactive approach, clear communication, and long-term perspective make them trusted advisors rather than just accountants.