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Seguin Financial
- Understand
- Corporation
- Team
“He has amalgamated our our e-commerce platforms, made submitting our expenses so easy we simply take a picture with our phone and payroll is no longer is a bothersome task.”
Best Accountants near Cornwall, ON
3 of these firms are based in Cornwall; the others serve Cornwall from towns including Salaberry-de-Valleyfield, QC (54 km), Vaudreuil-Dorion, QC (69 km) and Casselman (41 km).
1 open 24/7 · 3 open weekends · 19 rated 4.5+
Data verified October 20, 2026
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Small-Books
- Questions
- Small Business
- Season
“Great experience and time was taken to answer my questions even though it was at the end of a very busy tax season.”
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A&T Desrosiers Services
- Small Business
- Asset
“She is efficient, takes time to teach me new things, and always responds in an appropriate amount of time.”
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Tohme Accounting
- Writing
- Books
- Questions
“Not only he respond and do his job in a effective and fast manner but he also doing constant follow-up with you to ensure that everything is completed.”
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Bloomworks Accounting
- Small Business
- Money
- Tax Return
“Daven prepared all the paperwork for my request to CRA, even made sure I was sending it to the correct address, amazing attention to the small details.”
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Martin Lepage Professional Corporation
“Great professional service recommended from my very capable bookkeeper.”
The 24 firms listed for Cornwall, ON handle year-end statements, corporate filings and personal returns. Details about sectors and software come from each firm's own website; ratings and quotes come from public reviews.
Area overview: Cornwall, ON
23 of the 24 firms on this page have a rating, from 3.7 to 5.0 across 315 reviews; 2 have 50 or more reviews and 19 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (94%), responsiveness (82%) and value (70%). 1 is open around the clock; 3 are open on Saturdays and 1 on Sundays. 6 have ten or more years of experience, the longest 22 years. 1 offers urgent consultations; 1 offers a free initial consultation and 1 is family- or locally-owned. We have a website on file for 23 of the firms on this page; 16 publish a contact page; 19 list a public email and 4 take bookings online. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book a consultation.
Why are accounting firms outside Cornwall listed on this page?
3 of the 24 firms are in Cornwall itself, and the rest come from other towns within 70 km. What matters more than the drive is whether the firm knows your province and your sector. Distances are straight-line.
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Mainville & Associates/Associés
“Overall exceptional services.”
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Jojos Accounting Svc
“Goes over and above to help”
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MTC Formation & Comptabilité
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Icjc Valleyfield
- Office
- Date
- Rapidity
“I really appreciated the excellent service of this accounting office, efficiency, speed and satisfaction are the words that define the services I received to do my taxes.”
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Rodina Professional Corporation
“David ensured that the documents were fully explained to us and also offered business and tax planning advice from both a personal and corporate perspective.”
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Padgett Business Services Montreal / Vaudreuil-Dorion
“I did business with the accountant Ashraf Gerges and I am very happy with it because thanks to his advice and supervision , I was able to overcome the problems of covid 19 despite the difficult situation”
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Logicompte | Comptable-Conseil et Impôts
- Service
“Fast and effective.”
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Stratégie CPA - Comptables Professionnels Agréés
“A professional team, which works with incredible efficiency, friendly, available and listens to the needs of its customers.”
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Ringuette & Associés
“I have been doing business with this company for several years now, I have always received excellent, fast and courteous service from Denis Ringuette and Jocelyne Beauchamps.”
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Martin Pepin Séguin Inc.
“The team is professional, courteous and was able to answer all my questions clearly.”
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CTB Solutions Comptables
“Excellent quality service”
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Sanani Consulting
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Grondin & Bélanger
- Service
“Excellent service, fast and courteous.”
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Rachelle Laferriere CGA Professional Corporation
“She is knowledgeable and very helpful, always cheerful and will take time to answer a quick question, never making you feel as if the question is trivial or silly (even if it has been on occasion!”
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GD Comptabilité Accounting
“Always Happy with the Services of GD Comptabilité”
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Guy Bedard
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Gestion Dici - Impots
“Perfect service”
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Gerhard Schmid CPA Auditor, CGA
Accounting Services in Cornwall, ON Cost Estimates
Minimum cost
$337
Maximum cost
$3675
National Average
$521
Avg Per Hour Rates
$292
$429
$919
Typical price range is based on 411 cost profiles
Why these companies made our list
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