Catharine Williams CPA CA

At Catharine E. Williams Professional Corporation, we are a boutique firm located in the heart of London, Ontario, providing a range of tax and accounting services to individuals, corporations, and estates. With over 25 years of experience as a chartered professional accountant, our founder, Catharine Williams, CPA, CA, has built a reputation for providing personalized and compassionate service to our clients.

Our Services

We offer a select range of services to cater to the diverse needs of our clients. For corporations, we provide comprehensive year-end financial statement and corporate tax return preparation, as well as year-round tax planning and financial advice. Our in-house bookkeeping service utilizes QuickBooks Online or Desktop, ensuring accuracy and efficiency.

For individuals, we specialize in personal tax returns, including self-employed individuals, such as consultants, counselors, commissioned salespeople, and rental property owners. We also offer caring personal tax services to those experiencing life transitions, such as newly widowed, separated, or divorced individuals. Additionally, we provide final and estate tax return services, as well as assistance to executors of estates.

Our Team

Catharine Williams, our founder and CPA, CA, has gained extensive experience through her 25 years in the industry. She has an in-depth understanding of the Canadian tax system and has worked with various types of small businesses. With her expertise and compassionate approach, she has built a strong reputation for providing personalized and effective tax and accounting services.

Our Commitment

At Catharine E. Williams Professional Corporation, we are committed to providing our clients with a personalized and supportive experience. We understand that navigating the complex Canadian tax system can be challenging, especially during times of transition. Our team is dedicated to assisting you with your tax and accounting needs, recognizing the importance of discretion and privacy.

Our Accessibility

Located in the heart of London, our office is easily accessible with free parking and an elevator-enabled building. We strive to make our clients feel comfortable and welcome.

Let's Connect

We invite you to explore our services and learn more about how we can assist you with your tax and accounting needs. Whether you're a business owner, individual, or estate, we look forward to connecting with you and providing the personalized service you deserve.