A CPA-led practice built around cross-border expertise
TYM Professional Corporation is a CPA-led advisory firm in Ontario, serving individuals and businesses in Toronto and across Canada.
Elena Serebryany, CPA, CA
Elena leads the firm's tax and advisory practice. She holds the Chartered Professional Accountant designation in Ontario and is also a US Certified Public Accountant licensed in Florida, and is an IRS Certifying Acceptance Agent.
That dual Canada–US qualification is the foundation of the practice: it lets the firm advise on both tax systems together, rather than treating each side in isolation — the difference that matters most for cross-border clients.
What you can expect
Focused expertise
We work in tax and cross-border tax every day, and keep our practice deliberately narrow so the work stays in expert hands.
Clear scope and fees
Every engagement has a defined scope and a fixed fee agreed in writing before work begins — no surprises.
Professional standards
As a CPA-led advisory firm, we hold ourselves to the standards of the profession on every file.
The people behind your financial clarity
Licensed CPAs, financial analysts, and operations professionals across Canada, united by a single standard of client service.
Elena founded TYM in 2012 after years of advising clients with complex US and international tax situations. A CPA with deep expertise in US tax, international structuring, FIRPTA, and cross-border treaty application.
View profile →Sergey is a CPA and Fractional CFO at TYM, serving clients since 2016. He specializes in US corporate tax, international structuring, and strategic tax advisory for mid-market businesses.
View profile →CPA CMA with 20+ years of progressive financial experience. Natalia serves as Fractional CFO at TYM, specializing in financial reporting, cost accounting, budgeting, and internal controls.
View profile →Aleksandr supports clients with financial analysis, reporting, and bookkeeping across the firm's practice as a Fractional Controller.
View profile →Olga serves as Fractional Controller for TYM clients, covering month-end close, financial reporting, AP/AR oversight, and intercompany reconciliations across multiple client entities.
View profile →PMP and Lean Six Sigma Master Black Belt with 6+ years managing international projects for Fortune 500 companies including PepsiCo and Tesla. Leads the firm's operations.
View profile →Talk to a CPA about your situation
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