At HAS we provide customized, personal bookkeeping solutions for small businesses. We use a holistic approach to business accounting, considering your entire organization processes, policies, and technology to help you reach your true profit potential.

Anytime, anywhere, from any device

Running a company can be both rewarding and challenging. Business owners need to focus on their business as opposed to spending their day handling bookkeeping matters.

At HAS, we use the latest progressive technology and software, including Intuit and QuickBooks Online cloud solutions. It allows you to manage your accounts anytime, anywhere, from any device.

Anytime, anywhere, from any device

Running a company can be both rewarding and challenging. Business owners need to focus on their business as opposed to spending their day handling bookkeeping matters. 


“I’ve been in accounting for over 30 years. Making sure business owners remain in compliance with current laws is a standard practice for most firms, including HAS. But what sets us apart is that we take an active interest in each of our clients, inspiring a trust that everyone seeks in their accountant.

We don’t just focus on one part of your business, such as bookkeeping or tax. We look at how ALL of your processes work together to contribute to the success and profitability of your business.

Our clients are our partners and our friends.”

Kathy Heintzelman, Founder

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What Our Clients Say

  • steve-stallard-blis-testimonial
    During 2014 our quickly growing West Michigan specialty food manufacturing company needed to transition from our out-of-state CPA firm to a local accounting firm. Heintzelman Accounting came highly recommended and their dedicated team did not disappoint. HAS handles all of our bookkeeping, accounting, payroll, and tax needs leaving us time to focus on our passion - creating new, innovative flavors. We were excited to find a firm that provides the flexibility and variety of services that we needed and always meets timelines in thorough detail. The staff of HAS is friendly and has a positive attitude which creates a pleasant accounting firm to work with. It is a testament to the great work culture at Heintzelman Accounting Services.
  • bill-padding-testomonial
    I have been a client of Heintzelman Accounting Services, Inc since April of 2010. I am very happy and pleased with the professional and personal services regularly provided to me for the past eight years. HAS manages all of my corporation and individual taxation needs in a professional yet personal manner, providing payroll services on a monthly basis and year-end accounting for preparation and filing of Form 1120S Tax Returns. With tax laws and requirements ever changing, the team of professionals at HAS maintains solid and clear communication with me on how changes impact my business and personal tax requirements and ensures that all required forms are filed in a timely manner. The staff is knowledgeable and efficient in providing solid, ethical services in a confidential manner. The personal service I receive throughout the year helps me to feel that I am more than just a "file folder" tucked away somewhere in a file cabinet in a back office.
  • catherine-lazarock-symplicity-communications
    It is my good fortune that I was introduced to Heintzelman Accounting Services Inc. to provide professional accounting services to my company. Kathy and her staff are talented, hardworking individuals, which has made working with them a pleasure. Their QuickBooks training is easily tailored to a business’s needs and extremely affordable. They definitely provide excellent client services. I absolutely recommend Heintzelman Accounting Services to anyone that is considering their service.
    Catherine Behrenbrinker, President
    Symplicity Communications, Inc.
  • feeney-law-firm_original
    "We began working with Heintzelman Accounting almost four years ago when they were brought on to help us with monthly bookkeeping. Since then, they have become a true partner and the accounting arm to my firm. They assist us with QuickBooks (QBO) training and support, monthly ledger, asset management and financial statement preparation, payroll, including tax filings for 3 states, end of year tax preparation, as well as cash flow projects and forecasting. What makes them truly unique and exceptional is their ability to work under our deadlines, getting us what we need, when we need it."
  • jim-baker-testimonial-
    Heintzelman Accounting Services has been involved with DeWitt Packaging since its inception more than 20 years ago. Their experience, expertise and knowledge have been invaluable to us. Even though they have been an independent accounting firm throughout our relationship, we consider them outstanding members of the DeWitt Packaging team.
    Jim Baker, President/Owner
    DeWitt Packaging Corporation
  • rhoda-kreuzer-partners-in-action-review-
    Kathy and her team do an excellent job. They have provided great service to my clients and cleared up complex financial issues for them. They are timely, professional, responsive, and willing to assist entrepreneurs in understanding their financial statements. They stay on the cutting edge and provide proven, practical advice. They are very easy to approach and understand the challenges many business owners face.
    Rhoda Kreuzer, President
    Partners In Action, Inc.

Ready to Simplify
Your Accounting?

Let's meet for coffee or schedule a video chat to find out how a partnership with HAS could help your business.