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New name, same focus

“Evolution stems from the foundation, one built on our Trusted Pillars.  Truster Zweig has grown into Truster Zweig Raithatha, to focus on more of the same tax specialty, accounting and advisory services you are used to.  Our history stands for itself, and now our brand reflects those foundational pillars.”


TZR Tax™ is the specialty tax firm that supports Truster Zweig Raithatha. Its only focus is to apply its mastery of tax law to design tax strategies for business and personal clients with a presence in Canada, the United States and worldwide.


Our team of Chartered Professional Accountants have roots going back to the 1950s. Also spanning generations, our client relationships are built on trust in our ability to tailor accounting and assurance services for your industry and sector.


Entrepreneurs first, our skillset makes it effective and easy to work with us throughout each stage of your life and business cycles.  We are passionate about running our business and helping you achieve success in yours.

Reminder – Underused Housing Tax Return Deadline is April 30, 2023

Overview of the tax Owners of residential properties situated in Canada that were owned on December 31, 2022, must determine if they are required to file Underused Housing Tax (“UHT”) returns and if...

New Name, Same Focus

We are excited to announce Vishal Raithatha has become a named partner in our firm. Going forward, we will be known as Truster Zweig Raithatha LLP. Chartered Professional Accountants.

We’ve launched a boutique tax firm!

As part of our ongoing commitment to support you through the delivery of exceptional business and tax advice, we recently launched a boutique tax firm called TZR TaxTM that is headed up by Perry...


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Optimizing your performance in your sector

Continued evolution requires strategic planning which begins by selecting specialists in your industry. Leveraging innovation and efficient processes to support your competitive edge can dictate your future success.

To close the financials, evaluate or create tax strategies, or simply advise specific sectors, our team at Truster Zweig Raithatha can assist with your needs, employing technology to provide you with optimal solutions. Search our specialization listing below and get connected.

Real Estate

Real Estate




Medical Professionals