Accounting, Tax & Advisory for North York & GTA Businesses
A boutique CPA firm in North York helping owner-managed businesses across the GTA and Canada with bookkeeping, corporate tax, HST, payroll, compilation, and practical financial advice.
Eight services. One CPA team.
Everything an owner-managed business needs — from day-to-day bookkeeping to year-end compliance and CPA-led advice, handled by one team.
Monthly Bookkeeping & Cloud Accounting
Clean, reliable books with monthly reconciliations, reports, and QuickBooks Online support.
Corporate Tax & HST Filing
T2 corporate tax returns, HST filing, CRA correspondence, and year-end compliance.
Payroll, T4 & T5 Support
Payroll setup, source deductions, T4/T5 slips, and year-end payroll compliance.
Personal Tax & Self-Employed Tax
T1 returns, rental income, self-employment, investments, and family tax matters.
Compilation Engagements
CPA-prepared financial statements for corporations, lenders, and year-end reporting.
CFO Advisory & Business Growth
Cash flow planning, budgeting, forecasting, profitability review, and owner-manager advice.
T3 Trust & Estate, Not-for-Profit & Charity
T3 trust and estate return filings, NPO information returns, and T3010 registered charity returns.
Corporate Services
Business registration, incorporation, CRA account setup, annual returns, and practical start-up guidance.
Accounting support for businesses like yours.
We work with owner-managed businesses and incorporated professionals across the Greater Toronto Area. Tell us your industry and we'll tailor the books, tax, and advice to it.
Contractors & trades
Job costing, HST, subcontractor payments, and clean year-ends.
Restaurants & franchises
POS reconciliation, payroll, tips, and multi-location reporting.
Medical clinics
Professional corporations, payroll, and tax-efficient compensation.
Real estate agents
Commission income, incorporation, expenses, and HST done right.
Professional service firms
Bookkeeping, payroll, and advisory for agencies and consultancies.
Consultants & incorporated professionals
Salary vs. dividends, HST, and year-round tax planning.
Matt Mathitharan CPA, CGA
Matt Mathitharan is the founder of ADDO CPA Professional Corporation. He works with owner-managed businesses, professionals, and individuals across the GTA, providing practical accounting, tax, bookkeeping, and advisory support. His focus is simple: clean records, timely filings, clear advice, and long-term client relationships.
- CPA, CGA designation
- Hands-on small-business experience
- Corporate tax & bookkeeping focus
- North York office, serving the GTA
- Practical, advisory-led approach
Clean books, closed on time.
Every transaction categorized and reconciled, every account tied to a source document, and a clear monthly report you can actually use. No year-end scramble, no surprises from the CRA.
- Monthly reconciliations in QuickBooks Online
- Profit & loss and balance sheet you understand
- Receipt & invoice capture, A/P and A/R tracking
- CRA-ready records, every month
Tax planned all year, not just in April.
We keep your HST, payroll remittances, and corporate tax on a single compliance calendar — so deadlines are met, instalments are right, and there's time to plan the salary-vs-dividend decisions that actually save you money.
- T2 corporate tax and HST filings
- Payroll source deductions & remittances
- Salary vs. dividend & year-end planning
- CRA correspondence handled for you
One page for where you're going.
Advisory clients get a single, living plan that connects the big vision to this month's objectives — vision, one- and five-year targets, and the revenue, profit, and cash-flow drivers that get you there. We review it with you on a regular rhythm.
- Vision, one-year & five-year targets
- Revenue, profit & cash-flow drivers
- Monthly objectives & immediate next steps
- Reviewed together on a regular rhythm
A simple, stress-free client journey.
From your first call to a steady monthly rhythm — here's how we get your books, tax, and reporting under control.
Free discovery call
We understand your business, CRA situation, bookkeeping status, and upcoming deadlines.
Review & cleanup
We review prior records, reconcile accounts, and identify anything that's missing.
Setup & compliance calendar
We set up QuickBooks Online, HST, payroll, and T2, and map out who files what, and when.
Monthly reporting & advice
Monthly reports, tax reminders, and practical business advice — every month.
Monthly Bookkeeping Packages.
Structured monthly service — not just year-end tax work. Every engagement is scoped after a short review.
- Monthly bookkeeping & reconciliation
- HST filing support
- Year-end ready records
- Everything in Starter
- Payroll, T4 & T5 support
- Monthly reports & year-end
- Everything in Growth
- Cash flow review & budgeting
- CPA advisory & planning sessions
Pricing depends on transaction volume, payroll, reporting needs, and filing requirements. Book a consultation for a customized quote.
Rated 5.0 on Google by local clients.
Reviews from owner-managed businesses across the GTA. Read them all on our Google profile.
Matt was absolutely fantastic. After years of searching for a reliable accountant in the Durham region, I finally found someone who truly checks all the boxes. Incredibly knowledgeable, with a user-friendly web portal that makes everything easy.
I've been working with Matt for years now, and I can't recommend him highly enough. Every tax season, he does an outstanding job handling my taxes with precision and expertise.
I found this office via driving by, and thought I would try it out for filing my 2023 income taxes. Matt made the process seamless, easy, and stress-free. I'll confidently continue to use their accounting services!
This is my second year filing taxes with Matt at ADDO CPA. He's incredibly thorough and professional. My taxes were completed promptly, and I'm extremely pleased with the results.
Excellent experience with Matt — professional, easy to work with, and made the process completely stress-free. Highly recommend to anyone looking for a great accountant!
Matt was absolutely fantastic. After years of searching for a reliable accountant in the Durham region, I finally found someone who truly checks all the boxes. Incredibly knowledgeable, with a user-friendly web portal that makes everything easy.
I've been working with Matt for years now, and I can't recommend him highly enough. Every tax season, he does an outstanding job handling my taxes with precision and expertise.
I found this office via driving by, and thought I would try it out for filing my 2023 income taxes. Matt made the process seamless, easy, and stress-free. I'll confidently continue to use their accounting services!
This is my second year filing taxes with Matt at ADDO CPA. He's incredibly thorough and professional. My taxes were completed promptly, and I'm extremely pleased with the results.
Excellent experience with Matt — professional, easy to work with, and made the process completely stress-free. Highly recommend to anyone looking for a great accountant!
I did my personal taxes with them in past years, and they were on time and very easy to work with. Mr. Mathi and the staff are very professional, and prices are reasonable. Highly recommend them for any tax matter or company accounting.
I had a time-sensitive business filing to be taken care of. Matt was prompt, and I appreciate him taking care of the business in a timely fashion.
Matt, thank you so much for guiding us through and providing your valuable expertise to maximise my tax rebate and child benefits.
Great experience, the filing process was very smooth and Mr. Mathitharan took the time to explain the returns. Would recommend the services to anyone interested in filing.
Mr. Matt is super attentive, friendly and professional. I highly recommend him for your tax returns and other services.
I did my personal taxes with them in past years, and they were on time and very easy to work with. Mr. Mathi and the staff are very professional, and prices are reasonable. Highly recommend them for any tax matter or company accounting.
I had a time-sensitive business filing to be taken care of. Matt was prompt, and I appreciate him taking care of the business in a timely fashion.
Matt, thank you so much for guiding us through and providing your valuable expertise to maximise my tax rebate and child benefits.
Great experience, the filing process was very smooth and Mr. Mathitharan took the time to explain the returns. Would recommend the services to anyone interested in filing.
Mr. Matt is super attentive, friendly and professional. I highly recommend him for your tax returns and other services.
Let's talk about your numbers.
Book a consultation, request a quote, or send us your question. A CPA replies within one business day.
Visit the office
ADDO CPA Professional Corporation
1275 Finch Ave W, Ste 409
North York, ON M3J 0L5
How can we help?
Choose what you need and we'll point you to the right place — or just send us your question.
Questions, answered.
Can't find what you're looking for? Book a consultation — we reply to every message within one business day.
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Let's make your numbers work for you.
A free, no-pressure consultation about your books, your deadlines, and what could be cleaner. We make numbers work for you.