Welcome to OSA CPA,

A Northern Ontario-based CPA accounting firm dedicated to empowering small business owners with reliable, insightful financial guidance. With a deep commitment to the communities we serve, we offer personalized accounting, tax, and financial services designed to support the unique needs of small businesses.

With extensive experience working with small businesses, our firm is here to simplify financial processes, enabling owners to focus on what they do best—growing their businesses. We understand the challenges and opportunities faced by entrepreneurs in Northern Ontario and are committed to delivering accurate, timely, and customized solutions that make a difference.

At OSA CPA we believe that strong financial health is the foundation of success, and we’re proud to be a trusted partner to businesses across Northern Ontario. Whether you need support with tax planning, bookkeeping, financial consulting, or other accounting services, we are here to help you every step of the way.