Chartered Professional Accountant in Mississauga, ON
Adian Professional Corporation is a Mississauga CPA firm founded and led by Purvish Shah, CPA, CA, who holds a Master of Accounting from the University of Waterloo and trained at a Big 4 firm. With 14 years of experience, Purvish personally prepares and reviews every T2 corporate tax return, compilation engagement and tax plan, at fixed fees with no hourly billing, for clients across Canada except Quebec.
We serve clients in all Canadian provinces and territories except Quebec. All engagements are conducted remotely. Our client base spans British Columbia to Newfoundland, with a concentration of clients in Ontario, Alberta, and British Columbia.
Meet Purvish Shah, CPA, CA
Purvish Shah is the founder and principal of Adian Professional Corporation. He holds the CPA, CA designation and a Master of Accounting from the University of Waterloo — one of Canada’s most respected accounting programs. Before founding Adian, Purvish trained and worked at a Big 4 public accounting firm, where he developed the technical foundation and professional rigour that informs every engagement at this firm.
He does not delegate client work. When you engage Adian Professional Corporation, you work directly with Purvish. The level of attention you receive reflects the background and experience described above — not a tiered service model where senior credentials are sold and junior execution is delivered.
Qualifications
| Qualification | Detail |
|---|---|
| CPA, CA | Chartered Professional Accountant — the unified Canadian accounting designation. The legacy CA designation reflects completion of the ICAO legacy qualification program prior to CPA unification. |
| Master of Accounting (MAcc) | University of Waterloo, School of Accounting and Finance — consistently ranked among Canada's top accounting graduate programs. |
| Big 4 Audit Experience | Pre-practice training and employment at a Big 4 global accounting firm. Audit methodology, financial statement analysis, and corporate tax at scale. |
| CRA EFILE Authorized | Authorized to file T2 corporate returns and T1 personal returns electronically with the Canada Revenue Agency. |
| Canadian Domestic Tax Only | The practice is focused exclusively on Canadian tax under the Income Tax Act (Canada) and the Ontario Taxation Act. No US tax, cross-border, or international structures. |
How We Work
Every engagement at Adian Professional Corporation follows the same principles regardless of the complexity of the work:
| Principle | What It Looks Like in Practice |
|---|---|
| Scope confirmed in writing before work begins | Engagement letter issued for every engagement. Fee confirmed. No work starts without written agreement. No hourly billing, no surprise invoices. |
| Senior CPA on every file | Purvish Shah prepares and reviews every tax return personally. Bookkeeping is delivered by Adian's bookkeeping team, trained by Purvish and led by the Bookkeeping Manager, who is your primary contact. Purvish steps in as needed. |
| Technical accuracy is non-negotiable | We apply the current Income Tax Act provisions, CRA administrative positions, and professional standards to every engagement. We do not guess and we do not cut corners. |
| We tell you when we are not the right fit | If your situation is outside our scope — Quebec provincial filings, US tax, international structures, or a matter that requires specialist counsel — we tell you at the outset and refer you appropriately. We do not take on engagements we cannot execute properly. |
| Written deliverables for planning work | Tax planning engagements produce a written plan with ITA section references. Verbal advice is not our product. |
Who We Work With
Our client base is incorporated businesses and their shareholders operating under the Canadian Income Tax Act. We do not serve clients with US tax obligations, foreign income, or international structures.
- Canadian-Controlled Private Corporations (CCPCs) filing T2 corporate tax returns
- Professional corporations — medical, dental, and accounting
- Holding companies and real estate corporations
- Owner-managers and shareholder-managers requiring T1 personal returns integrated with their T2
- CCPCs planning a business sale and seeking Lifetime Capital Gains Exemption analysis
- Estates and executors dealing with private company shares and post-mortem tax planning
- CCPC shareholders considering a corporate reorganization, estate freeze, or family trust structure
- Sole Proprietors
- Bookkeeping
We serve clients in all Canadian provinces and territories except Quebec. Our office is in Mississauga, Ontario. All engagements are conducted remotely.
Work Directly With a Senior CPA
If you are looking for a CPA who will prepare your return personally, communicate clearly, and price engagements transparently — book a free 20-minute consultation. We serve CCPCs and incorporated businesses across Canada (excluding Quebec).