Stop Stressing Over Your Books.
Get professional bookkeeping that keeps your finances clean, your taxes optimized, and your business growing.
Claim Your Free Audit
Get a detailed report on your QuickBooks setup + 2 months free bookkeeping
See How We Help Business Owners Like You
Watch this short video to learn how our bookkeeping services can save you time, reduce stress, and optimize your taxes.
Click to watch (2 min)
Sound Familiar?
Running a Business Shouldn't Mean
Drowning in Paperwork
Messy Books = Tax Nightmares
Disorganized records lead to costly errors, missed deductions, and CRA headaches you don't need.
Wasting Hours on DIY
Every hour you spend on bookkeeping is an hour not spent growing your business or with your family.
Paying More Tax Than You Should
Without proper planning, you're likely leaving money on the table at tax time.
No Financial Clarity
Flying blind without clear financial reports means you can't make smart business decisions.
You didn't start your business to become an accountant. Let us handle the numbers.
Our Services
Everything You Need to Stay
Financially Organized
From day-to-day bookkeeping to year-end taxes, we've got you covered.
Monthly Bookkeeping
Clean, accurate books every month so you always know where you stand.
- Transaction categorization
- Bank & credit card reconciliation
- Monthly financial reports
- QuickBooks management
Corporate Taxes
Strategic tax preparation that minimizes what you owe—legally.
- T2 corporate tax returns
- Year-end planning
- CRA compliance
- Tax optimization strategies
Financial Statements
Professional compilations your bank and investors will trust.
- Compilation engagements
- Review engagements
- Financial statement prep
- Lender-ready reports
Tax Planning
Proactive strategies to keep more money in your pocket.
- Quarterly reviews
- Op Co / Holdco structuring
- Income splitting strategies
- Year-round guidance
Trusted by professionals across Greater Vancouver
[Professional Photo of Shawn]
Meet Your CPA
Shawn Sitthikoun, CPA
Founder & Principal, ONYX CPA
With over a decade of experience in accounting and finance, I founded ONYX CPA with a simple mission: to help business owners like you focus on what you do best while we handle the numbers.
I've worked with businesses across healthcare, construction, real estate, tech, and professional services. What I've learned is that most business owners don't need a complicated accounting setup—they need a reliable partner who keeps things simple, accurate, and optimized for taxes.
At ONYX CPA, we're not just about compliance. We're about giving you the clarity and confidence to make smart financial decisions. When your books are clean and your taxes are planned, you can focus on growth.
10+
Years Experience
100+
Clients Served
CPA
Certified
Client Stories
Business Owners Love Working
With ONYX CPA
“Shawn and the ONYX team completely transformed our bookkeeping. We went from dreading tax season to actually understanding our finances. The peace of mind is worth every penny.”
[Client Name]
Owner, Construction Company
“As a realtor, my income is unpredictable. ONYX CPA helped me set up a system that keeps my books clean all year. Their tax planning saved me thousands.”
[Client Name]
Real Estate Professional
“I used to spend every weekend doing my own books. Now I spend that time with my family. Best business decision I've made.”
[Client Name]
Healthcare Professional
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Ready to Get Started?
Let's Talk About Your
Financial Goals
Book your free consultation and QuickBooks audit. We'll show you exactly where your books stand and how we can help.