Updated Checked by the Tax-Services.ca editorial team How we check
No official source publishes an average CPA tax preparation cost, so any single figure you find online is a guess. What the CRA does confirm is who can deduct the fee: if you have business, rental or investment income, a reasonable preparation fee reduces your tax, and for a salaried employee it usually doesn’t.
Why isn’t there an average fee here?
Each firm sets its own fees, and they depend on the local market and on your file. We couldn’t confirm a reliable range from an official or neutral source, so we don’t print one. A page that quotes a tidy average is usually repeating another site. Compare real quotes instead, and get at least two.
What makes a quote go up?
Ask any preparer how they price the work. Certain things make a return longer, and it pays to mention them up front:
- Business or self-employment income, with expenses to sort.
- Rental property, with several units or shared ownership.
- Sales of shares, crypto or property during the year.
- Income or accounts outside Canada.
- Several years of missed returns to file at once.
- A spouse or partner whose return should be planned with yours.
A single T4 with a few receipts is a much lighter job. Say which case you’re in before you ask for a price. Fatima, who drives for a ride app and rents a parking spot, will get a different quote from her sister, who has one T4 and a tuition slip, even if they use the same office.
Can you deduct the fee?
| Your situation | Fee for preparing your return |
|---|---|
| Sole proprietor with business income | Deductible as a business expense (professional fees line, form T2125) |
| Business or property income, reported as an individual | Reasonable fees can go on line 22100 (carrying charges) |
| Salaried employee | Not claimable as an employment expense |
| Commission employee | Reasonable accounting fees for help with your return may be claimed |
| Fee to prepare an objection or appeal | Deductible on line 23200, after any reimbursement |
What does a $500 fee cost a self-employed person after tax?
The $500 is an assumed fee, not a market price. Start with net business income of $80,000 in Ontario. The self-employed tax calculator shows $13,233.57 of income tax and $8,892.90 of CPP, $22,126.47 in all. Enter $500 as a deduction and income tax falls to $13,085.32, so your total drops to $21,978.22 and the fee costs you about $351.75 after tax. CPP doesn’t move, because this calculator counts the deduction against income tax only.
Put another way, the taxman covers about $148 of the $500, which is a little under a third. It’s a help, not a rescue, so don’t pick a preparer just for the write-off.
To see how a change in income moves your tax, try the marginal tax rate calculator. The tax refund calculator gives a quick check of what your return should show, and a preparer whose result lands far from it should explain why.
Do you need a CPA at all?
Not always. Certified tax software handles a salary, a pension or a bit of interest without any trouble, and for those returns paying a CPA mostly buys reassurance. The case for a CPA gets stronger as the file gets messier: a business with expenses to defend, a rental with repairs and improvements mixed together, or several years of catching up. Ask yourself one thing. If the CRA wrote to you next spring, would you know how to answer? If not, the fee may be cheap insurance.
What should you ask before you hire?
- Is the price fixed, hourly or by the form? What could raise it?
- Does it include filing, slips review, and answers if the CRA writes to you?
- Who will actually prepare the return, and who signs off?
- Will you see the full return before it’s filed?
- How will you get your own copy afterwards?
Check the credentials of the person you deal with through the provincial CPA body. And if a preparer wants to sign in to your CRA account, note that the CRA says anyone acting for another person must use Represent a Client. Don’t share your own login details. The CRA’s page on using a professional tax preparer covers what to expect from the process.
Where do people get burned?
Picking the lowest quote without asking what it covers.
Paying a preparer who bases the fee on the size of your refund is another one to avoid. Keep a copy of the engagement terms and the invoice, because they support the deduction if you have business income. Fees for buying capital property such as equipment aren’t deducted at once, they’re added to its cost.
Free help exists as well. The CRA says free tax clinics serve people with a modest income and a simple tax situation, and it offers a clinic locator on its site, on its free tax clinics page. Each clinic sets its own limits, so call before you go. Check your deductions first with the tax deductions and credits calculator.
Related reading: certified tax preparers, checking a preparer’s EFILE status and free tax filing in Canada.
Where this information comes from
Fee deduction rules come from Canada Revenue Agency pages on professional fees for business income, line 22100, line 22900 and free tax clinics, read in September 2026. The tax figures in the example come from this site’s 2026 Ontario and federal tax data. Prices are not confirmed, and this site has no link with the CRA or any government.
Frequently asked questions
Is there an official price for a CPA tax return?
No. Each firm sets its own fee, and we found no official or neutral source for an average, so we do not quote one. Ask for the price and what it covers before you agree, and compare two or three firms on the same scope.
Can I deduct the fee for my tax return?
If you have business or property income, reasonable fees are deductible against that income. A salaried employee cannot claim them as an employment expense. Keep the invoice and the engagement terms, because they support the deduction if the CRA asks.
Is there a free option?
The CRA says free tax clinics serve people with a modest income and a simple tax situation. Its clinic locator helps you find one. Each clinic sets its own rules and hours, so check them before you go and bring your slips.
Should the fee depend on my refund?
Better to pay for the work than for a share of the refund. A fee tied to the refund gives the preparer a reason to push for a larger one. Ask for the price and what it covers before you agree.
Can my preparer see my CRA account?
The CRA says anyone signing in for another person must use Represent a Client. Do not hand over your own login details, because you stay responsible for what is done under your name. Authorize a representative, and cancel it when the job ends.
- How to choose a tax preparer in Canada
Do you need a tax preparer in Canada? How to decide, what a preparer does, the questions to ask before you hire one and where to find free help