Chartered Professional Accountant

Providing Tax and Accounting Services with Care and Compassion

Catharine Williams, CPA, CA

Professional Services

We are a boutique firm located in central London, Ontario, providing tax and accounting services for corporations, individuals and estates.

For Corporations

Year-end financial statement and corporate tax returns

For Individuals

Personal tax returns including deceased final returns, Henson Trust returns and estate returns

For Businesses

Bookkeeping using QuickBooks Desktop or QuickBooks Online

HST Returns

T4 & T5 calculations and preparation

Why us?

Knowledge & Experience

Catharine has been a CPA for over 25 years, with her own practice for over 15 years. She is supported by a team of experienced and competent technicians.

Care & Compassion


We understand that that our Canadian tax system can be incredibly challenging to comprehend, especially in times of business and personal transition, such as a new start-up, or death of a loved one. We are here to assist you in your filing obligations in a supportive manner, while respecting your need for privacy and discretion.

Availability & Accessibility

Our office is located centrally, just south of downtown London, in an office building in a quiet residential area. We have free parking and an accessible building, complete with elevator. Our spacious office can accommodate most wheelchairs, walkers and strollers. Our weekday office hours are generally 9am to 5pm, but the building is open from 7:30am to 6pm for package drop-offs through our mail slot.