Peter Wiesner, CPA

Your Full Service Personal and Corporate Accounting and Tax Advisor

About Peter Wiesner, CPA

Peter Wiesner, CPA is licensed in Ontario. Peter has over 29 years of experience with small business and related personal taxes as a sole practitioner. He provides full service for your personal and corporate tax needs including tax advisory services. The professional services include tax preparation, appeals, adjustments requests, licensed auditing services, and licensed non auditing services for financial statements, and Estate trust returns and advisory services. 

Keyboard and Mouse
What Peter Does

Personal and Business


Annual Audit Services


Final Tax and Trust Returns 


Non Audit Financial Statements

What the clients are saying...

Larry S, - Newmarket

I am a semi retired controller and professional accountant. I have recently worked Peter on a very serious regulatory and penalty situation on a mutual client. Peter had previous experience with both the Regulatory and Legal processes involved and immediately understood the seriousness of the issues involved. He attended all meetings, responded timely, and where possible saved the client penalties by using the Voluntary Disclosure Program. The time to complete all assignments were accurately predicted. I enjoy working with Peter and would recommend him to others.

I have used Peter for both my personal and corporate tax needs. He has helped me with the acquisition of  a family business and gave me solid business advice in corporate structure, accounting set up, and other general business issues. Peter worked well, and streamlined the process with my corporate lawyer during the process, I know he saved me both money, and aggravation with his insight and knowledge of the business purchase process. Also, the on going advice is invaluable. All of his work, and advice, is professional to the nth degree. I recommend him very highly to my family, and to my friends. I trust Peter when it comes to my taxes and financial statements.

Michael H. - Aurora

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