Multitaxservices
“She is very good in explaining details and steps, prompt with responses and very professional which makes accounting easy with minimal stress.”
Best Tax Preparation Services in London, ON
22 companies listed · all 22 in London · 1 open 24/7 · 6 open weekends · 18 rated 4.5+
Data verified October 21, 2026
C & V
“Got my taxes done today and was in and out very quickly!”
Tax Max Services
“He responds promptly to any questions thrown his way and he does a great job of explaining every step of the tax return process.”
Canadian Accounting & Financial Services
“Thank you Shaza for doing my late brother's income tax in such a professional, friendly manner.”
NG Chartered Professional Accountants
“NG Chartered Professional Accountants exceeded all my expectations and were prompt and response to every query.”
Century Accountants
“Mr Shadab is very knowledgeable, professional and patient person to help clients in all their taxation needs.”
The 22 companies listed for London, ON prepare personal and business tax returns for clients. Details about services and credentials come from each company's own website; ratings and quotes come from public reviews.
Area overview: London, ON
All 22 companies we list here are in London itself. We have 33 companies in London on file; this page shows the highest-rated 22. 19 of the companies on this page have a rating, from 4.2 to 5.0 across 1,230 reviews; 5 have 50 or more reviews and 18 are rated 4.5 or higher. When clients rate these companies on specific qualities, they most often praise professionalism (91%), responsiveness (79%) and quality (70%). The topics that come up most in reviews of the companies on this page are "expertise", "communication" and "efficient". 1 is open around the clock; 6 are open on Saturdays and 2 on Sundays. 1 lists staff certifications (CFP). 3 have ten or more years of experience, the longest 24 years. 1 offers urgent consultations; 1 offers payment plans; 5 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for 19 of the companies on this page; 14 publish a contact page; 12 list a public email and 1 takes 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 tax preparers listed for London offer a free first consultation?
5 of the 22 companies listed here offer a free first meeting. Expect a discussion of what your return involves and a price, rather than advice on your position. Bring last year's return and assessment so the estimate is based on something real.
Advantage Tax Solutions
“I am really appreciated , his work is very neat and accurate , without any hassle we were able to get our taxes returns on time.”
Ayad Accounting & Management
“Ayad was amazing, he provides a professional service that is fast and easy, he responded so fast to all of my questions in a timely manner.”
Simple Tax Solutions London
“We appreciated his authenticity and care for customer service through the experience.”
Synergy Tax and Business Solutions
“Sarah and her team provide some of the best accounting services in London and surrounding area.”
Major Tax & Accounting, CPA
“Indira is great to work with, she is professional, knowledgeable, and a pleasure to work with.”
Financial Tax Services
“He completed my small business income tax filing efficiently and accurately and answered all of my questions in a friendly and professional manner.”
A & E Tax Services
“The girls at A&E are always helpful when discussing my returns and can be relied on to provide professional top notch service.”
Maclean Investment Group
“Over the past few years with them, I have received great advice and frequent updates and recommendations on diversifying my portfolio.”
Practical Planner - Financial Planning ~ Tax Preparation
“Michael responds promptly to questions via email and diligently asks for information to ensure that the corporative and personal tax returns are filled correctly.”
Prival Tax Station
“They were extremely knowledgeable and helpful, both with my business taxes and my wife's personal taxes.”
DX Accounting
“Always checking to make sure you can get the best return possible.”
Cloud Accounting
Bernie Keim, CPA
Tax Minds Consulting
“This was my first time tax filing by Tax Minds and I was very happy.”
Loeffler Accounting Svc
“Fast and efficient and well priced.”
Elliott & Associates
Why these companies made our list
What clients say about companies in London
- “The entire staff was friendly and accommodating. I highly recommend C and V for tax filing services.” — client of C & V
- “They are also honest and professional and saved us money in the very first tax filing season.” — client of NG Chartered Professional Accountants
- “Tax season used to be stressful but Synergy makes it such a smooth and easy process.” — client of Synergy Tax and Business Solutions
Excerpts from public reviews of the companies listed on this page.
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