One Accounting is a professional accounting firm serving clients across Toronto, Oakville, Hamilton, Mississauga, Waterdown, Calgary, and Burlington. We provide a wide range of accounting services for corporations and small businesses, including bookkeeping, tax preparation, payroll, and financial advisory services. In addition to our local support, we also offer remote accounting and tax filing services across Canada, making it easy for clients nationwide to manage their finances with confidence.
Accounting Made Simple for Canadian Businesses
Our Services
Work with top-rated business accountants providing expert services across Canada. We offer personalized tax planning, bookkeeping, compliance, and business advisory to help individuals and businesses achieve financial success.
Our accountants in Canada offer bookkeeping services that streamline your financial processes, reduce errors, and provide valuable insights.
Our tax services include tax planning and filing, minimizing your company's tax liability while maximizing deductions.
We handle employee salary calculations, deductions, taxes, benefits, and other Canadian payroll compliance requirements.
Advisory
We offer expert guidance and
strategic solutions to help small
businesses achieve their objectives and overcome challenges.
Why Choose Us?
Top Accountants for Your Financial Needs
We understand that every business accounting need is unique, with its own objectives and financial conditions. Therefore, as experienced accountants, we take pride in providing personalized support. In particular, we take the time to fully comprehend your company before developing strategies specifically tailored to meet your goals.
- One-Stop Firm
- Dedicated CPAs
- Small Business Accountants
- Reasonable Pricing
- Professional Expertise
- Error-free Reporting
- No Hidden Fees
- Quick Support
FREE CONSULTATION
"I believe that behind every financial statement is a journey of hard work and dedication. Therefore, our mission is to be the architects of financial success for our clients. Moreover, trust is the cornerstone of every successful partnership. As a result, we take pride in fostering trust through transparency, reliability, and a commitment to excellence. Ultimately, your success is our success, and we are honored to be a part of your financial journey."
Sunith Varkey CPA, CAFounder 
Why Do Clients Choose One Accounting?
Looking for a reliable accountant in Canada? Then look no further! One Accounting is a well-established professional accounting firm based in Toronto, with offices across Oakville, Hamilton, Mississauga, Waterdown, Calgary, and Burlington.
Our experienced accountants provide comprehensive financial services for individuals and businesses, offering everything under one roof. Moreover, by using advanced accounting software and modern technology, we streamline financial processes, improve accuracy, and deliver real-time insights to support better decision-making.
CPA Accountants for All Businesses
At One Accounting, our experienced CPA accountants in Canada, based in Toronto (HQ) and supporting clients in Oakville, Hamilton, Mississauga, Waterdown, Calgary, and Burlington, deliver complete accounting, bookkeeping, and financial solutions with professionalism and expertise.
Our accountants are highly trained CPAs and CAs with decades of experience, providing expert support in bookkeeping, business accounting, Canadian tax, and provincial compliance. They ensure accurate, reliable, and professional handling of all your financial matters.
Awards 2024
Meet Our Team
Get Expert Services from Professional Accountants
Our Priority: Clients
The main priority will always be our customers, and we work diligently to deliver reliable bookkeeping, business accounting, and tax services while respecting your priorities and guiding you toward the decisions that matter most.
Technology-Driven Accountants
We use modern cloud accounting tools and automation to streamline bookkeeping, improve accuracy, and give you real-time visibility into your business finances. In fact, automation and the right technologies save both time and costs. We implement these tools effectively to support your business operations.
Response Times
We understand that your time is valuable, so we won’t keep you waiting. To ensure prompt communication, we offer a guaranteed response time of 8 hours for emails. Additionally, we always make sure you are kept in the loop about the progress of any work being done for you.
We Focus On Simplicity
As a small business owner, you deserve the right solution to the challenges you face every day. With this in mind, we simplify your bookkeeping, business accounting, and financial processes, helping you focus on running your business with confidence.
What Our Clients Say
"Very knowledgeable and simple to collaborate with. Wonderful Business!!!"
Diane CochraneFounder & CEO, Stocked Cellars 
"Outstanding level of service. Highly recommend"
Layth Ashoo Managing Partner, Golden Spruce Capital 
I wanted to take a moment to share my incredible experience. As a small business owner, I always found managing my finances to be a daunting task and tax season was a source of anxiety. I now approach tax season with confidence, knowing that I have a dedicated team of experts supporting me every step of the way.
Steve AllenDirector Of Operations, Knew Sales Group 
We have been getting our taxes filed, books maintained from one accounting and the kind of understanding they have, the way they explain about taxes is really amazing and helpful!
Pulkit DhandaWhiterose Janitorial 
Very professional and friendly service. I Would highly recommend to all my friends. I am grateful for their dedication, transparency, and the peace of mind that comes with having reliable financial advisors.
Smitha MaryWellCare Urgent Care 
I am pleased to provide my wholehearted recommendation for One Accounting, whose services have been invaluable to our non-profit organization. One Accounting has consistently demonstrated professionalism, reliability, and a keen attention to detail in all aspects of bookkeeping.
Their team effectively handles all our financial records, ensuring that every transaction is accurately recorded and that our financial reports are prepared with precision. They have also been proactive in offering insightful recommendations to improve our financial practices and maintain compliance with various regulations that govern non-profit organizations.
The level of transparency and communication provided by One Accounting has been outstanding. Their timely updates and ability to explain complex financial matters in clear, understandable terms have greatly enhanced our internal processes. They truly understand the unique needs of non-profit organizations, and their expertise has been crucial in helping us maintain financial stability and make informed decisions.
Overall, One Accounting’s services have been an essential part of our financial operations, and I am confident that their support will continue to play a key role in our future success. I highly recommend them to any organization looking for top-notch bookkeeping services.
Nick Caione 
Google Reviews
Software Partners
Accounting FAQs: Your Questions Answered
One Accounting has a team of dedicated accountants who provide professional financial management solutions tailored to small businesses and corporations. Specifically, we specialize in maximizing returns, minimizing tax burdens, and ensuring accurate bookkeeping, timely tax preparation, and strategic financial planning. Moreover, One Accounting connects you with Toronto accountants, ensuring expert financial management for businesses of all sizes. Let us be your trusted partner in navigating the complexities of your business finances, providing clarity and confidence every step of the way.
How Can One Accounting Help You?
Our experienced CPAs and CAs combine strong technical knowledge with a deep understanding of your business to deliver accurate, compliant, and reliable accounting support across all provinces of Canada.
What Services Do Accounting Firms Offer to Your Business?
Whether you need tax planning, bookkeeping, or business advisory, our Toronto accountants at One Accounting are here to help. Additionally, we provide expert advice on tax compliance, budgeting, and strategies to improve profitability and streamline financial operations, ensuring your business stays on the path to success.
What types of accounting services do you offer?
One Accounting offers bookkeeping, corporate tax, payroll, advisory, tax planning, compliance, and financial reporting services for businesses and individuals. We also provide startup support, cloud accounting, and personal tax filing services
Do you offer virtual or cloud-based bookkeeping?
Yes. One Accounting offers virtual and cloud-based bookkeeping services across Canada. We use cloud accounting tools to provide real-time financial access, automation, and remote support.
Does One Accounting provide personal tax filing services?
Yes, One Accounting offers personal tax filing services in Canada for individuals with employment income, self-employment income, rental income, and investment income. We help clients file their taxes accurately, maximize eligible deductions, and stay compliant with Canadian tax rules.
One Accounting proudly serves clients with offices in Toronto, Oakville, Hamilton, Mississauga, Waterdown, Calgary, and Burlington, delivering expert financial solutions across multiple regions. By expanding our reach, we ensure businesses in these locations receive the highest level of financial expertise and support.
The cost of hiring a Canadian accountant varies depending on the services required, with hourly rates typically ranging from $100 to $400. Additionally, factors such as the complexity of your financial needs, the accountant’s experience, and whether you require specialized services like tax planning or corporate accounting can significantly influence the final price.
As CPAs in Toronto, we bring advanced qualifications, extensive training, and a commitment to ongoing professional development, ensuring a higher standard of financial expertise. Moreover, we are equipped to handle complex financial challenges, provide strategic business advice, and ensure full compliance with regulations, making us a reliable choice for your financial needs.
Yes. We offer GST/HST filing support, HST recovery, and tax credit-related services in Canada. Our team ensures your filings are accurate, timely, and aligned with current tax requirements.
One Accounting serves a range of industries, including real estate, small business, import/export, self-employed professionals, consultants, and doctors. They position their services as industry-specific accounting support.
Competitive Advantage
Reliable - 24/7 Support
To answer your questions, you have access to a dedicated team of experienced professionals. Specifically, our team of accountants includes CPAs, tax specialists, information technology experts, and payroll specialists, ensuring comprehensive support for all your financial needs.
Fixed Pricing (Monthly or Quarterly)
We agree to a fixed price upfront, which is only adjusted if your business changes significantly. Furthermore, there are no hidden fees, cancellation fees, or long-term obligations. For added flexibility, you can cancel at any time with 30 days’ notice.
Cloud-Based Solutions
Our professional accountants use the best cloud-based tools to interact with you digitally while providing up-to-date financial information in real-time. By leveraging automation, we streamline transaction categorization and reconciliation, helping you save time and reduce the risk of errors.
