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Diamond CPA

Your Trusted Partner for Small Business Accounting & Bookkeeping in Calgary

Maximize your financial potential with expert accounting and tax services at Diamond CPA. We specialize in small business accounting and bookkeeping in Calgary, helping businesses maintain accurate financial records and stay organized. Our experienced Tax Consultants and trusted Chartered Professional Accountants provide strategic guidance to keep your business compliant and growth-focused. Join our satisfied clients and discover why many consider us among the best accountants in Calgary for building a successful financial future.

Denise Andersen profile picture
Denise Andersen
3 months ago
I started working with Diamond Adatia in 2024 on a limited basis but I was so impressed that in 2025 I contacted Diamond to help with filing personal taxes for both myself and my husband. We had complicated CRA returns as we are both dual citizens (CAN/USA) and own businesses in Alberta and in the USA. Diamond was extremely attentive and answered emails by at the latest the next day, if not within hours. He was also available by telephone. He was very knowable and 100% professional. I highly recommend the services of his firm.
Gagandeep singh profile picture
Gagandeep singh
4 months ago
I called Mr. Aditya with some questions about international taxes, specifically regarding filing Canadian taxes while living in the U.S. He was extremely helpful, knowledgeable, and clear in his explanations. It’s obvious he knows what he’s doing and takes the time to guide you properly. Highly recommend
Sunny Banipal profile picture
Sunny Banipal
5 months ago
Issa Amche profile picture
Issa Amche
5 months ago
Great welcoming every time, wonderful staff very helpful, very knowledgeable in his work, highly recommend
Nancy Samy profile picture
Nancy Samy
5 months ago
Diamond and his team has been my accountant for years. He’s always advised me on what’s best for me to be able to grow my business. They are very friendly and knowledgeable.
ahmed baki profile picture
ahmed baki
6 months ago
Very well organized and professional
Felipe Arroyo profile picture
Felipe Arroyo
1 year ago
Diamond was very knowledgeable and took the time to patiently answer all my questions about small business taxes. He provided clear, actionable advice tailored to my business. I’d definitely recommend him.
Shivam Kapoor profile picture
Shivam Kapoor
1 year ago
“Very knowledgeable and helpful. I’m 100% satisfied with his expertise. Highly recommend!”
Sp Singh profile picture
Sp Singh
1 year ago
Listed to my questions and queries patiently and advise accordingly.
Rajesh Sahota profile picture
Rajesh Sahota
1 year ago
Very professional, down to earth, hard working team. No words to express their quality of work and services. Highly recommended 👍
Sam Soboh profile picture
Sam Soboh
1 year ago
10/10 !
Steven Le profile picture
Steven Le
1 year ago
I've had the pleasure of working with Diamond, and I must say, his knowledge of accounting is exceptional. He has a deep understanding of complex financial concepts and is always up-to-date with the latest tax laws and regulations. Whether it's personal finance or business accounting, Diamond is able to explain everything in a clear, easy-to-understand manner. He takes the time to assess each situation thoroughly and provides tailored solutions to meet specific needs. I highly recommend him for anyone in need of a knowledgeable, reliable accountant.
Nishit Bhavsar profile picture
Nishit Bhavsar
2 years ago
Dimond Uncle's experience in tax planning, financial analysis, and budgeting has been invaluable to my business. They take the time to understand my unique needs and provide personalized solutions that have saved me time and money.

I highly recommend Dimond Uncle to anyone looking for a trustworthy and skilled accountant. They are a true asset to any business or individual seeking expert financial guidance.
Parvez Khoja profile picture
Parvez Khoja
2 years ago
Diamond has been an incredible guide and advisor for me. Their knowledge in accountability and taxation is impressive, but what truly stands out is their positive approach and dedication to ensuring I fully understand every aspect of my questions. Diamond not only provided me with a wealth of knowledge but also instilled in me a confidence that I hadn’t felt before. With patience, kindness, and genuine care, they took the time to make sure I was fully satisfied and at ease. A big salute to Diamond for their amazing support and for going above and beyond. Highly recommend them to anyone seeking a trustworthy, knowledgeable advisor!

Thanks 💎
Al Jetha profile picture
Al Jetha
2 years ago
I’ve been a client of Diamond for over Twenty years. I find Diamond to be very knowledgeable, ethical and professional. He provides different solutions for your situation.

Diamond is very patient and will walk you through the process. He will respond to your questions promptly. He’s been a partner in my success.

I would highly recommend him for your personal or business accounting needs.
ABDIWAHAB MAALIN profile picture
ABDIWAHAB MAALIN
2 years ago
I had the pleasure of meeting and working with Diamond, and I am extremely satisfied with the experience. He possesses exceptional knowledge and expertise in accounting and tax matters. His patience and dedication truly set him apart. I felt well-informed and comfortable with every decision. Diamond is professional, adaptable, and dedicated to high standards and customer satisfaction.

I highly recommend Diamond and his firm to anyone in need of top-notch accounting services.

Thank you Mr Diamond for everything you’ve done for me
Yetunde Oyebanjo profile picture
Yetunde Oyebanjo
2 years ago
I met with Diamond after a couple of other due diligence sessions in search of the best Accounting & Tax Advisor for me. He came in highly recommended. I'm so glad I got the chance to speak with him- He brings to bare his wealth of experience and is very knowledgeable about accounting and tax matters. I usually have a lot of questions but he remained very patient with me. Each time, himself and his staff, Adrian would go above and beyond, showing their commitment to high standards. In my experience, I can verify that this firm is committed to high customer satisfaction, very adaptable and professional in their dealings. The rates are also very reasonable, compared to many others. I can sleep well at night, knowing I have the right Business Partners for my Accounting & Taxes. Would highly recommend anytime!

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Smart & stress-free accounting solutions

Managing your finances doesn’t have to be overwhelming. Our expert accounting services ensure accuracy, organization, and strategic tax planning, so you can focus on growing your business with confidence. From effortless monthly bookkeeping to year-end tax optimization and confidential tax expertise, we provide the guidance and precision you need to stay financially secure and successful.

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Effortless Monthly Accounting for Business Owners

Keep your finances in order with our professional monthly accounting services. We ensure precision and organization, allowing you to focus on what you do best – running your business.

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Year-End Tax Planning
Made Simple

Our team reorganizes and prepares your financial statements and tax returns efficiently. Discover strategic tax plans that reduce your tax burden and keep more of your hard-earned money.

“Professional team at Diamond K. Adatia CPA, offering accounting and tax services in Calgary

Confidential Tax
Expertise

We work closely with tax lawyers to handle complex matters, providing you with peace of mind and professional guidance.

12 Years

“Professional team at Diamond K. Adatia CPA, offering accounting and tax services in Calgary

New home construction

5 Years

“Professional team at Diamond K. Adatia CPA, offering accounting and tax services in Calgary

Retail and daycare ownership

2 Projects

“Professional team at Diamond K. Adatia CPA, offering accounting and tax services in Calgary

Partnership of commercial development projects

5 Years

“Professional team at Diamond K. Adatia CPA, offering accounting and tax services in Calgary

Cell phone franchise ownership

About Us

In 1980, I took a leap of faith. After working as a controller in manufacturing, I realized I wanted more—control over my time, my work, and my success. That’s when I started my own accounting practice.

With a small office in Southeast Calgary, no internet, and just a dial-up phone, I built my business from the ground up. Over the years, word of mouth and client trust fueled our growth. What started as a one-person operation is now a dedicated team, committed to providing expert guidance and immediate support.

At Diamond K Adatia Professional Corporation, we believe in professionalism, integrity, and personalized service. We collaborate with top experts to ensure our clients always receive the best advice. Our mission is simple: help businesses grow and succeed.

Portrait of a professional frameless accountant smiling in a suit and tie in an office setting
— Diamond K Adatia, CPA, CA

President, Diamond K Adatia Professional Corporation

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Our mission & vision

income tax experts

DIAMOND K ADATIA PROFESSIONAL ACCOUNTANT offers accounting, bookkeeping, tax services, new business setup, coaching for accountants, and more across Calgary, Alberta.

Our services

Income tax preparation Calgary
Starting a new business in Calgary opens the door to many opportunities, but it also comes with financial complexities. New Business Tax Advisory Services are essential for guiding entrepreneurs through the intricate tax regulations that govern businesses in Alberta
income tax Calgary
In North East Calgary’s dynamic economic landscape, tax consultants play a vital role for small and medium-sized businesses. As entrepreneurs and business owners navigate the complexities of small business taxes and tax planning, having a knowledgeable partner is essential. 
Personal income tax Calgary

Your search for reliable chartered professional accountants in Calgary ends here at DiamondCPA. We have handpicked some of the most qualified and brilliant chartered accountants in Calgary to provide thorough tax preparation services and business advisory to clients.

small-business-accounting-in-calgary-diamond-k-adatia-cpa

Running a company in Calgary offers opportunities, but it also requires careful financial management. From tracking expenses to preparing corporate tax filings, strong accounting systems shape how smoothly your business operates. At Diamond K Adatia, Chartered Professional Accountant, we provide small-business accounting in Calgary designed to keep your records accurate, organized, and ready for review at any time.

Bookkeeping in Calgary

Maintaining accurate financial records is essential for every business, regardless of size or industry. Organized bookkeeping helps business owners track income, monitor expenses, manage cash flow, and prepare for tax obligations with confidence. At Diamond K Adatia Chartered Professional Accountant, we provide professional Bookkeeping in Calgary designed to help businesses stay financially organized and focused on growth.

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income tax experts

We continually provide premium services to our clients. We can be of service to you regarding all of the below. Contact the office for information not listed; add them here and do them or find the contact who can help you. We will steer you in the right direction.



Smart & Stress-Free Accounting Solutions

From startups to tax strategies, we offer tailored financial and business solutions that secure your growth.

income tax experts

Most of all we have been there for the client whenever needed. And, we continue to give the client the best tax and financial advice. If it is beyond us, we involve tax lawyers to join hands with, but we do make sure the client wins! I know that we can give you our best to mutually benefit all of us!

Thank you for the pleasure of your Company today!

In over 40 years of service, I have come to know the needs of a variety of clients, from Professional to Retail to Construction, having been partnered in:

income tax experts