Precision Accounting for Ontario's Business Leaders.
Greg Williams CPA delivers strategic tax planning, corporate compliance, and personalized financial advisory — built for entrepreneurs and high-net-worth professionals who expect more than a tax return.
Accounting That Works
As Hard As You Do.
Most business owners interact with their accountant twice a year — once at tax time, once when the invoice arrives. Greg Williams operates differently. His practice is built around ongoing relationships with owners who have too much at stake to accept generic, reactive advice.
Greg has built a reputation among Ontario's incorporated professionals and business owners for the kind of strategic, senior-level attention that most firms reserve for their largest accounts. Whatever your scale, that's the standard of care you'll receive.
A Proven Standard.
Greg Williams CPA has spent nearly a decade advising Ontario business owners with six and seven-figure operations — from incorporated professionals to multi-entity holding structures. Here's what sets this practice apart.
Strategic Tax Planning
Most accountants file what happened. Greg plans what will. Every engagement begins with a forward-looking strategy designed to reduce your tax exposure, optimize your corporate structure, and keep more of what you've earned — before filings are due, not after.
High-Net-Worth Experience
Greg has spent ten years advising clients with six and seven-figure net worths — from professional holding companies to complex ownership arrangements.
CRA Correspondence
When the CRA reaches out, Greg handles it — directly and completely. From routine requests to complex reviews, Greg manages all CRA correspondence on behalf of his clients so they never have to deal with the agency themselves. His meticulous approach to compliance and documentation means issues are resolved quickly and without surprises.
A Partner, Not Just a Preparer
Greg's clients aren't file numbers. You'll have his direct line, and you can expect a real answer — not a voicemail chain. This level of access and accountability is rare, and it's exactly what business owners with real stakes require.
A Full Suite of Services,
Tailored to You.
Year-round strategic tax positions for incorporated businesses — structured to reduce CRA exposure and maximize retained earnings.
→Comprehensive personal tax preparation and planning for business owners, executives, and high-income professionals.
→Counsel for operational strategy, growth decisions, and corporate restructuring.
→Accurate, timely remittances that keep you fully compliant and free from the penalties that follow careless filings.
→Clean, organized financial records that give you a real-time picture of your business and a strong foundation for growth.
→Ready to Work With a CPA Who Treats Your Business Like His Own?
Schedule a complimentary consultation and discover how Greg Williams CPA can position your business for a stronger financial future.
Comprehensive Accounting,
Calibrated to Your Goals.
From your first incorporation to complex multi-entity structures, Greg Williams CPA delivers solutions built around your specific situation — not a generic checklist.
Greg's corporate tax work begins with a deep review of your corporate structure, ownership arrangements, and multi-year income patterns to build a forward-looking strategy designed to reduce your annual tax burden.
Whether you operate through a single or multiple corporations, Greg brings the expertise to optimize your structure and keep you on the right side of the CRA — before filing deadlines, not after.
- Corporate tax return preparation (T2)
- Year-round tax planning strategy
- Corporate restructuring & optimization
- Salary vs. dividend planning
- Holding company strategies
- CRA correspondence & dispute resolution
For business owners and high-income professionals, personal tax is never simple. Investment income, capital gains, rental properties, corporate dividends, stock options — each layer requires careful planning to ensure you're not leaving money on the table.
Greg handles personal tax returns for clients across the income spectrum, with particular expertise in the complex situations that come with business ownership and substantial net worth.
- T1 personal tax return preparation
- Investment & capital gains reporting
- Rental property income
- Foreign income & asset reporting
- Self-employed & sole proprietor returns
- Shareholder loan planning
- RRSP, TFSA & FHSA optimization
- CRA audit representation
Numbers tell a story. Greg's advisory work helps business owners understand what their financials are actually saying — and what to do about it. Greg provides the strategic context that goes beyond compliance.
- Business plan & cash flow modelling
- Corporate structure review
- Acquisition due diligence support
- Financial analysis & KPI reporting
- New business incorporation guidance
- Owner-manager compensation strategy
Remittance obligations are unforgiving — miss a deadline or file incorrectly, and the penalties compound quickly. Greg's compliance services ensure your HST, payroll, and related obligations are filed accurately and on time, every time, so you can focus on running your business.
- HST/GST return preparation & filing
- Payroll setup & remittances
- T4, T5, T4A slip preparation
- WSIB compliance & reporting
- Input tax credit optimization
- CRA audit representation
Accurate books are the foundation of every good business decision. Greg's bookkeeping and reporting services provide clean, organized financial records that give you a real-time picture of your business — and a solid foundation for tax preparation, client and vendor relationships, and growth planning.
- Monthly & quarterly bookkeeping
- Bookkeeping software management
- Accounts payable and receivable management
- Bank & credit reconciliation
- Cash flow reporting & projections
- Compilation engagement (Notice to Reader) financial statements
Not Sure How to Stay Compliant?
Book a no-obligation consultation. Greg will take the time to understand your situation and recommend exactly what you need — nothing more, nothing less.
Business Owners Deserve an Accountant Who Is Genuinely Invested in Their Success.
A Different Kind of
Accounting Practice.
Greg began his practice with a clear vision: to create a firm that not only processes returns and issues statements, but one that actually understands the pressures, decisions and stakes involved in running a real business.
What sets Greg's practice apart isn't just technical competency — it's the quality of attention. His clients deal directly with Greg, not with a junior associate. They have his number. And when something comes up — whether it's a CRA review or significant financial decision — they know exactly who to call.
Greg holds his Chartered Professional Accountant designation and has built his expertise around corporate tax strategy, owner-manager compensation planning, and the kind of multi-layered personal and business tax situations that come with real wealth.
With Greg's disciplined and methodical approach to documentation and proactive planning, your organization will be more organized and compliant with CRA and financial reporting standards.
Three Principles That Guide Every Engagement.
Proactive Over Reactive
Greg doesn't wait for tax season to think about your situation. Year-round planning is the standard, not the exception. The goal is to engineer the best possible outcome before decisions are made — not to clean up after them.
Precision in Every Filing
Accuracy isn't optional — it's the whole job. Every return is treated with the same care and scrutiny, because the difference between a careful filing and a careless one can mean thousands of dollars and a CRA audit.
Relationships Over Transactions
The best financial advice comes from knowing someone's full picture — their goals, their family, their risks, their exit timeline. Greg builds long-term relationships precisely because that's the only way to give genuinely excellent advice.
Let's Start a Conversation.
The first step is simple — a no-obligation consultation to understand your situation and explore how Greg Williams CPA can help.
Let's Talk About Your Business.
Schedule a complimentary consultation with Greg Williams CPA. Whether you're looking for a new accountant, navigating a specific tax situation, or planning for growth — the conversation starts here.
Thank you. Greg will be in touch within one business day.