Online Accountant for Ontario Small Business
Ontario is Canada’s biggest market — and its 13% HST and corporate rules have their own quirks. We handle it all online for incorporated Ontario owners, with fixed fees and a named CPA.
EverStone is a Canadian CPA firm serving Ontario small businesses online. Ontario uses a single 13% HST (no separate PST) and its own corporate rate. We handle your T2, HST and bookkeeping remotely with a dedicated CPA — video, CRA e-file — at fixed fees.
How business tax works in Ontario
Ontario is a harmonized (HST) province: you charge a single 13% HST that combines the federal and provincial portions, filed on one return. That’s simpler than BC’s GST-plus-PST split — but the place-of-supply rules still matter if you sell into other provinces.
Ontario’s small-business corporate rate is 12.2% combined (9% federal + 3.2% Ontario), with a general rate of 26.5%. Larger payrolls may also encounter the Employer Health Tax (EHT), which we factor into your planning.
| Sales tax | 13% HST (one combined return) |
| Small-business corporate rate | 12.2% combined (9% federal + 3.2% Ontario) |
| General corporate rate | 26.5% combined |
| Small-business limit | $500,000 |
Rates current as of 2026 (source: Canada Revenue Agency). General information, not advice specific to your situation.
Ontario industries we work with
We support owner-run Ontario businesses across the province’s major sectors:
Professional services & consulting
Toronto and Ottawa consultants, agencies and professional corporations optimizing owner pay.
Tech & e-commerce
Startups and online sellers managing multi-province HST and inventory.
Skilled trades & construction
Incorporated trades with holdbacks, T5018s and equipment.
Manufacturing & wholesale
Small manufacturers and distributors needing tight books and margins.
Full-service accounting, delivered online
- T2 corporate tax returns & year-end statements
- GST/HST & provincial sales tax filed correctly
- Bookkeeping & payroll on the cloud
- Personal T1 returns coordinated with your corporation
- Salary-vs-dividend planning for owners
- CRA support and year-round advice
Related services & tools
Keep exploring, or run your own numbers first.
Ontario accounting FAQ
Does Ontario have HST or PST?+
What is the small business tax rate in Ontario?+
Can a CPA outside Ontario file my Ontario corporate taxes?+
Do I need to worry about the Employer Health Tax?+
How does working remotely with you work?+
Trusted by Canadian business owners
Verified 5-star Google reviews from EverStone CPA clients.
“Very knowledgeable — saved me tons in taxes by restructuring my group of companies. The best accountant I have worked with in the last 10 years, after switching from 3 different accounting firms.”
“Highly recommend. We switched last year for both our personal and small business taxes — easy and seamless. Responsive, knowledgeable, and quick.”
“Personal. Professional. Responsive. Plus he saved me a bundle!”
Ready for an Ontario CPA who picks up?
Book a free consultation — T2, HST and bookkeeping handled online at a fixed fee, anywhere in Ontario.