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.
Posted on Google Denise AndersenTrustindex verifies that the original source of the review is Google. 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.Posted on Google Gagandeep singhTrustindex verifies that the original source of the review is Google. 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 recommendPosted on Google Issa AmcheTrustindex verifies that the original source of the review is Google. Great welcoming every time, wonderful staff very helpful, very knowledgeable in his work, highly recommendPosted on Google Blink Eyewear-OptometryTrustindex verifies that the original source of the review is Google. 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.Posted on Google ahmed bakiTrustindex verifies that the original source of the review is Google. Very well organized and professionalPosted on Google Felipe ArroyoTrustindex verifies that the original source of the review is Google. 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.Posted on Google nishan singhTrustindex verifies that the original source of the review is Google. “Working with [Diamond] has been an outstanding experience. They are highly knowledgeable, detail-oriented, and always responsive to my questions. They helped me navigate complex tax issues and provided valuable financial planning advice. I truly appreciate their professionalism and transparency. I highly recommend their services to anyone looking for a trustworthy CPA.Posted on Google Sp SinghTrustindex verifies that the original source of the review is Google. Listed to my questions and queries patiently and advise accordingly.
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.
Thanks 💎
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.
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
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.

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.

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.

Confidential Tax
Expertise
We work closely with tax lawyers to handle complex matters, providing you with peace of mind and professional guidance.
12 Years
New home construction
5 Years
Retail and daycare ownership
2 Projects
Partnership of commercial development projects
5 Years
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.
President, Diamond K Adatia Professional Corporation
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Our mission & vision
- Empower businesses with expert financial guidance and unwavering support.
- Fostering success, providing impeccable service, and upholding the highest standards of professionalism and confidentiality.
- Commit to be the trusted partner that helps clients achieve their financial goals and thrive in their endeavors.
DIAMOND K ADATIA PROFESSIONAL ACCOUNTANT offers accounting, bookkeeping, tax services, new business setup, coaching for accountants, and more across Calgary, Alberta.
Our services
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.
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.
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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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.
- Every client is being advised from business startup, offer to lease, purchase or asset lease, Business insurance, Financial projection, loan applications, incorporations, who should own and why.
- Our passion is to see YOUR 2-5 years financial goal set for the company and personally.
- We look at the family and give advice on income splitting and tax deferral
- Investment through a holding company to avoid risk to the business.
- We have helped in mediating with the CRA at the Queen’s Bench level when the lawyers gave up.
- We have mediated with the City in case of negligence by the City.
- We help in mediating with the banks and landlords.
- We have helped mediate with the Lawyer in case of divorce settlement.
- We have filed for Canadian tax return credits for foreign residents.
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: