


CPA Firm in Toronto & Miami —
US-Canada Tax & CFO Experts
TYM Business Consulting delivers expert CPA services, fractional CFO leadership, and cross-border US-Canada tax strategy - empowering your business to make better decisions and deliver stronger results.
At TYM, we help businesses navigate complex finances with confidence
TYM Business Consulting is a CPA-led advisory firm founded in 2012 by Elena Serebryany, CPA. We specialize in US-Canada cross-border tax, fractional CFO services, and strategic accounting for businesses that operate across both jurisdictions.
With offices in Toronto, Ontario and Miami, Florida, our team of licensed CPAs, financial analysts, and operations professionals delivers personalized strategies and transparent processes - tailored to your specific business goals and challenges.

Your CFO Partner and Beyond
View all servicesUS Corporate Tax (Form 1120)
Accurate, audit-ready corporate tax returns for US and cross-border entities. We navigate entity structure, ownership, and operating footprint to minimize your tax burden.
Personal Tax Return (Form 1040)
Comprehensive individual income tax preparation with full documentation support, ensuring IRS compliance and long-term audit readiness for residents and non-residents.
Incentives, Grants & SR&ED
We prepare review-ready SR&ED claims and US R&D credit applications, turning eligible R&D activity into real, recoverable financial savings for your business.
Fractional CFO Services
Executive-level financial leadership without the full-time cost. We design personalized financial roadmaps, cash flow strategies, and KPI dashboards that drive growth.
Accounting & Bookkeeping
Accurate, timely bookkeeping and financial reporting for businesses in Canada and the US - including transaction categorization, bank reconciliations, and monthly close.
Mergers & Acquisitions
End-to-end M&A advisory for cross-border transactions. We support due diligence, deal structuring, tax planning, and post-merger integration across both jurisdictions.
Payroll Management
End-to-end payroll processing, source deductions, T4/W-2 preparation, and ROE filing for Canadian and US employees. Full compliance with CRA, IRS, and provincial/state payroll regulations.
Project Management
Structured financial project management for complex engagements - system migrations, ERP implementations, audit readiness, and multi-entity restructurings.
Executive Management Consulting
C-suite advisory for founders and executives navigating growth, transition, or transformation. Strategic planning, operational efficiency, board reporting, and organizational design.
Deep expertise
across key sectors
Generic accounting advice costs businesses money. We build sector-specific knowledge into every engagement - from SR&ED eligibility in tech to FIRPTA compliance in real estate - so your CPA understands your business, not just your books.
Our team has served clients across 12+ industries in Canada and the United States. Below are the sectors where we have the deepest concentration of experience.
Talk to a sector specialistTechnology & SaaS
Revenue recognition, SR&ED credits, stock option planning, and cross-border IP structuring for software and technology companies at every stage.
Real Estate
FIRPTA compliance, rental income reporting, capital gains planning, and entity structuring for investors, developers, and property managers in Canada and the US.
Healthcare
Professional corporation structuring, income splitting, and compliance for physicians, dentists, and allied health professionals operating in Ontario and Florida.
E-Commerce
Sales tax nexus analysis, cross-border inventory accounting, and multi-currency bookkeeping for DTC brands selling across North America and internationally.
Aviation
Aircraft ownership structuring, depreciation strategy, charter income reporting, and cross-border compliance for operators, owners, and aviation businesses.
Professional Services
Tax planning, incorporation strategy, and financial reporting for law firms, engineering firms, consultants, and other professional service organizations.
Also serving: Construction, Financial Services, Import/Export, Hospitality, Non-profits, and more.
From first call to year-round partnership
Free Consultation
A focused 30-minute call to understand your business, jurisdiction, and financial goals. No obligation, no sales pitch.
Tailored Proposal
We deliver a written engagement scope and flat-fee quote within 48 hours. You know exactly what you're getting and what it costs.
Onboarding in Days
Access your secure client portal, meet your dedicated CPA, and receive a 90-day priority roadmap - all within one week of signing.
Ongoing Partnership
Quarterly strategy calls, proactive deadline alerts, and real-time access to your financial data. We grow with your business.
Built differently to serve cross-border businesses better
Most accounting firms handle one side of the border. We were built from day one to handle both.
Dual-jurisdiction expertise on every file
Flat-fee pricing, disclosed upfront
No hourly billing surprises. Before any engagement begins, you receive a written scope and a fixed fee. A level of transparency that is uncommon in the accounting industry, and entirely intentional on our part.
CFO-level thinking, not just compliance
Dedicated CPA on every engagement
Secure, fully remote workflow
Proactive, not reactive
Understand your cross-border tax exposure in minutes
Whether you're a Canadian resident earning US income, a US resident with Canadian business interests, or someone who moved between countries this year - your tax situation is more complex than a single-country filer.
Our estimator uses 2024 federal and state/provincial tax rates, applies simplified US-Canada treaty credits, and flags the compliance obligations most commonly missed by cross-border individuals and business owners: FBAR, FATCA, T1135, and departure tax.
Estimates are for informational purposes only and do not constitute tax advice. Consult a licensed CPA for your actual filing.
Cross-Border Tax Estimator
Get a rough estimate of your combined US-Canada tax burden.
Estimates use 2024 tax rates. For actual filing, consult a licensed CPA.
Open full estimatorFinancial intelligence for growing businesses
View all articles
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Common Questions, Answered
Quick answers to what we hear most from prospective clients. Have something more specific? Book a free 30-minute consultation.