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Accounting Plus Financial Services
- Efficient
- Price
- Family
“Beside the high professionalism, Peter Edrey's office offers genuine kindness and approachability, making tax submitting a pleasant experience, not a scary yearly chore.”
Best Bookkeeping Services in Thornhill, ON
24 companies listed · 10 in Thornhill · 1 open 24/7 · 15 open weekends · 21 rated 4.5+
Data verified October 16, 2026
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Taraz, Chartered Professional Accountants
- Small Business
- Insights
- Questions
“I just arrived in Canada and was very worried about the administrative tasks I would have to deal with here, but fortunately, I got acquainted with some friends who had experience working with Mr”
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Parsian Accounting, Payroll, and Efile Tax Services.
- Professional Service
- Respectful
- Happy
“Shahpazir)has consistently provided exceptional accounting services, demonstrating a keen attention to detail and a deep understanding of financial principles.”
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Zen Tax
- Communication
- Bookkeeping
- Small Business
“I've used multiple accounting firms in the past for my personal and small business bookkeeping matters and I can say that Zen Tax is without a doubt, the best in the GTA.”
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Hpan Group Corp
“They are very knowledgeable, professional, had great communication and kept me in the loop the whole way through the process, not to mention they finished my accounting services in a timely manner.”
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Master Accounting & Tax Services
“We have been using Master Accounting and Tax Services for our family tax and small business needs, and we couldn't be happier with the exceptional service provided by Mitra.”
The 24 companies listed for Thornhill, ON handle day-to-day bookkeeping and sales tax filings for businesses. Details about packages and software come from each company's own website; ratings and quotes come from public reviews.
Area overview: Thornhill, ON
10 of the 24 companies we list are based in Thornhill; the other 14 serve Thornhill from towns including Mississauga, Scarborough and Toronto. 21 of the companies on this page have a rating, from 4.8 to 5.0 across 2,466 reviews; 17 have 50 or more reviews. When clients rate these companies on specific qualities, they most often praise professionalism (100%), responsiveness (67%) and quality (61%). The topics that come up most in reviews of the companies on this page are "knowledge", "efficient" and "expertise". 1 is open around the clock; 14 are open on Saturdays and 6 on Sundays. The services the companies on this page list most often on their websites are bookkeeping (6), payroll (4), accounting services (3), bookkeeping services (3) and accounting (2). 9 have ten or more years of experience, the longest 22 years. 1 offers urgent consultations; 1 offers payment plans; 9 offer a free initial consultation; 1 is family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 24 of the companies on this page; 20 publish a contact page; 22 list a public email and 5 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book a consultation.
Do any bookkeeping companies listed for Thornhill offer a free assessment?
9 of the 24 companies listed here offer a free initial meeting. Expect a quick look at the file, a count of monthly transactions and a quote. Bring access to the software, because a price given without seeing the books rarely survives contact with them.
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IQ Accounting Professionals Corp
“I have been using their service in last two years and I am extremely happy with their services.”
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Fiscal Expert
“I am also amazed at the tax strategy they have implemented over the last year that saved me money and significantly reduced my tax bill.”
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Saman Accounting Services
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Lynxpoint Business Management and Consulting
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BBS Accounting CPA
- Finances
- Work
- Corporate
“They stay on top of items requiring completion so I don't have to worry about it, and send me reminders for items required regularly so I don't need to worry about tracking it on my own.”
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Instaccountant
- Business Tax
- Saving
- The Future
“We have always filed our tax returns through them, they always respond very quickly and will provide their services as best as possible under any circumstances, highly recommend!”
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SAL Accounting
- Accountant
- Expert
- Border
“As a Canadian running a US e-commerce business, managing taxes can be quite complex, and having a reliable and competent accounting firm can make all the difference.”
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Think Accounting
- Expertise
- Advice
- Work
“Thanks to their advice we know we are paying the right amount to our government, we are getting all the tax credits and deductions we are allowed and we are happy.”
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Magic Accounting & Tax Services
- Communication
- Mind
- Tax Return
“Behbahani, while he carefully checked all my employment conditions, the results of the calculations were very satisfactory and all my questions were answered, especially the preparation of a summary .”
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Accountor CPA Accounting Bookkeeping and Tax Experts
- Information
- Savings
- Corporate Taxes
“They listened to my needs and also provided guidance in setting up our QuickBooks system to best suit my access to information as well as the needs for our US accountants.”
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Western CPA Tax
- Fees
- Organized
- Financial
“The speed and accuracy of their work is unparalleled in my experiences and I cannot recommend them highly enough for all your accounting and financial strategic needs!!”
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Diamond CPA - Chartered Professional Accountant
- Financial
- File
- Tax Filing
“BEST ACCOUNTANT I've met as Goutam sir is very innovative under every conditions, seeks innovative solutions, fosters a curiosity for innovative possibilities.”
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Webtaxonline
- Knowledge
- Understanding
- Questions
“He was quick to answer emails, patient in answering any questions I had, and very knowledgeable when preparing my returns to ensure they were properly done and filed on time.”
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SRJ Chartered Professional Accountants
- Season
- Partnership
- Efficient
“Shayan and his colleagues are experts in what they do and provide a full range of services including SRED claims , financials and general book keeping for business.”
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Prime Tax Solutions
- Service
- Business Tax
- Price
“10/10 Service :)”
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MA TAX Inc.
- Team
- Accountant
- File
“Their attention to detail, professional approach, and client-focused solutions make them a 5-star choice for anyone seeking reliable and efficient tax assistance.”
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Nazrul Accounting and Tax Professional Corporation
- Expertise
- Patience
- Company
“From start to finish, he demonstrated a high level of professionalism, expertise, and dedication to ensuring that my tax filing was done accurately and efficiently.”
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Honest Accounting
- Know
- Bookkeeping
- Team
“My Experience with Honest Accounting was fabulous as they provide good service and help anytime.”
Bookkeeping and Controller Services in Thornhill, ON Cost Estimates
Minimum cost
$500
Maximum cost
$7450
National Average
$1200
Avg Per Hour Rates
$45
$900
$2000
Typical price range is based on 335 cost profiles
Why these companies made our list
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