Updated Checked by the Tax-Services.ca editorial team How we check
Looking for a tax accountant in Ottawa? Start with one fact: if you lived in Ontario on December 31, you pay Ontario provincial tax and file a single return with the CRA. The city matters less than the licence, the experience and the written quote.
Why does the province you live in on December 31 matter here?
Ottawa sits on the Quebec border, and plenty of people live on one side and work on the other. The CRA says you’re generally taxed by the province where you were resident on December 31. If you were resident in more than one, it’s the one where your residential ties are strongest.
That rule can change your bill. Here’s a self-employed person netting $50,000, using the self-employed tax calculator.
| Province on December 31 | Income tax | Pension contributions | Total |
|---|---|---|---|
| Ontario | $5,961.64 | $5,533.50 (CPP) | $11,495.14 |
| Quebec (estimate) | $6,665.17 | $6,241.00 (QPP and QPIP) | $12,906.17 |
The Quebec row is an estimate, since some Quebec inputs came from search summaries and not the official pages. Even so, the gap of about $1,400 shows why a move across the river is worth a talk with an accountant before you sign a lease.
How do you check a tax accountant in Ottawa?
CPA Ontario keeps public directories for members, firms and public accounting licence holders. Search the person and the firm. Members can be in good standing or under suspension, and the directory shows which.
Then ask the questions that sort good from average:
- Who will prepare my return, and who reviews it?
- How many clients do you have with my kind of income?
- What does the quote include, and what costs extra?
- How do you handle a CRA letter or review?
We couldn’t confirm typical fees, or compare any Ottawa firm, from an official source. So we don’t name prices or firms. Get two written quotes and read the scope line by line. The cheaper one often leaves things out.
What does self-employed income in Ontario cost you?
Most of the people who look for a tax accountant in Ottawa have income no employer handles for them. Freelancers, contractors and small business owners are in that group. Nobody withholds tax or CPP, so you set it aside. These figures are from the same calculator, for Ontario.
| Net business income | Income tax | CPP, both halves | Share of income |
|---|---|---|---|
| $50,000 | $5,961.64 | $5,533.50 | 23.0% |
| $80,000 | $13,233.57 | $8,892.90 | 27.7% |
| $90,000 | $16,079.97 | $9,292.90 | 28.2% |
Look at the last two rows. An extra $10,000 of income adds $3,246.40 of tax and CPP. Turn that around and you can see what an allowed $10,000 expense is worth: about that much. It’s why receipts matter, and why our guide to small business tax deductions in Canada is a good next read.
When should you book, and what should you bring?
Earlier than you think. The self-employed had until June 15, 2026 to file for 2025, but any balance was due April 30, 2026. So the useful conversations happen well before spring. If you’ll owe more than $3,000, the tax instalments calculator splits it into four payments.
Bring last year’s return and assessment, your slips, income and expense records and your business number. The CRA says records must be kept for six years from the end of the last tax year they relate to.
What goes wrong when people hire?
Price is the loudest factor, and it misleads. A low quote for a return isn’t a low quote if you then pay extra for the bookkeeping, the GST/HST or a response to the CRA. People also forget that an accountant estimates what you tell them. Give partial numbers and you’ll get partial answers.
Finally, don’t lean on a calculator when your case is complicated. Corporations with several owners, rental property and foreign income are beyond these tools. For a wider look at your own tax, try the income tax calculator first, then take the result to your meeting.
Where the numbers come from
The residence rule, filing dates and record-keeping period come from the Canada Revenue Agency. Directory details come from CPA Ontario. Examples use this site’s calculators with 2026 data checked on September 29, 2026, and they are estimates. This site has no link with any government body or accounting firm.
Frequently asked questions
Which province taxes me if I live in Ottawa?
Ontario, if you were resident there on December 31. The CRA taxes you where you lived on that date.
How do I check a tax accountant in Ottawa?
Use the CPA Ontario member, firm and public accounting licence directories, and check whether the person is in good standing.
How much does an Ottawa tax accountant charge?
We couldn't confirm typical fees from an official source. Get two written quotes that list what's included.
What does an $80,000 self-employed income cost in Ontario?
Income tax of $13,233.57 plus CPP of $8,892.90, or $22,126.47 in all, by our calculator.
How long should I keep my records?
The CRA says six years from the end of the last tax year they relate to.
- How to choose a tax preparer in Canada
How to decide if you need a tax preparer, what a preparer does, the questions to ask before you hire one and where to find free help in Canada
- Ontario income tax and sales tax in 2026
How Ontario income tax works in 2026: the five brackets, the surtax and health premium, the 13% HST, and the calculators that switch to Ontario
Information only. This page is general information, not tax, legal or accounting advice. Tax-Services.ca is an independent publisher: we don't prepare or file tax returns or offer tax services, and we have no connection with the CRA, Revenu Québec, any government or any company named on this page. Check the figures that matter with an official source or a qualified professional.