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Notchbooks
- Questions
- Small Business
- Tax Return
“I highly recommend this team service if you are single, married, divorce, have kids, multiple jobs, or whatever is going on with you, he will get you on track to achieve your goals.”
Best QuickBooks Consulting & Training in Smithtown, NY
24 firms listed · 4 in Smithtown · 2 open 24/7 · 12 open weekends · 22 rated 4.5+
Data verified October 16, 2026
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Edwin Casanova, CPA
- Communication
- Understanding
- File
“I found them at a crucial time in my new business, my accountant had passed away from Covid and they helped me navigate through that time with such compassion.”
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Ross & Company, CPA
- Knowledge
- Responsive
- Office
“In addition to being my most trusted CPA I also consider him a super sound and very relatable advisor and friend and I sleep super sound at night knowing that I've got him in my proverbial pocket.”
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Raisman CPA
- Generations
“Have had the pleasure and privilege of working with Raisman CPA since the late 1970's directly with Myron Raisman and after he retired, with Connie Ryan; and have been with them ever since.....”
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Support HQ
- Bookkeeping
“Support HQ has been instrumental in helping me with my taxes every year but now they have helped me establish my business and best practices for book keeping and payroll.”
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Nick J. Giannitsas CPA
“His attention to detail and tax expertise, along with being a really nice guy makes him 5 stars.”
The 24 firms listed for Smithtown, NY set up, repair and teach accounting software for businesses. What each says about certifications and supported platforms comes from its own website; ratings and quotes come from public reviews.
Area overview: Smithtown, NY
Of the 24 firms we list here, 4 are in Smithtown itself and 20 come from towns including Melville (5, 12 mi), Massapequa (3, 18 mi) and Nesconset (1, 4 mi). The firms on this page are rated from 4.0 to 5.0 across 1,548 reviews; 9 have 50 or more reviews and 22 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (96%), responsiveness (85%) and quality (66%). 2 are open around the clock; 12 are open on Saturdays and 4 on Sundays. The services the firms on this page list most often on their websites are tax services (11), business services (8), quickbooks services (6), services for individuals (6) and estate planning (4). 1 has a BBB rating of A or A+. Domain records put 16 websites of the firms on this page at ten or more years old; the oldest dates from 1999. 2 offer urgent consultations; 9 offer payment plans; 11 offer a free initial consultation and 1 lists coupons or special offers. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book a consultation.
Which software consultants listed for Smithtown list their certifications?
All 24 firms on this page have a website on file, and most name their certifications and the platforms they support. Certification status can be checked on the vendor's own directory, which is worth doing before the first call.
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Lindenhurst CPA
- Tax Return
- Prep
- Company
“And if I would recommend anyone for this job I am telling you wholeheartedly and let Christ be my witness that he would be the answer you would want to seek for any tax related purposes”
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Kyle F. Lester, CPA
- Knows
- Questions
- Tax Return
“Putting the effort into finding a legal and tax expert who could make the process easy for me, answer my questions, and help me understand things, was a much smarter investment of my time and money than utilizing an online service.”
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Taxmaster of Melville
- Accountant
- Team
- Company
“It's great to have a tax professional reach out to me all during the year to update me on any tax changes or just to touch base to make sure I am on track with what we planned.”
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Kassman Accounting
- Questions
- Tax Return
- Job
“Myles is extremely knowledgeable and with his expertise you can save a lot of money Don't pay for promises Kassman and Company delivers I strongly recommend them”
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SMG ABA
- Financial
- Management
- Expertise
“I have tried to pinch pennies here and there to run a profitable business and have been very successful in those areas but it took me a while to learn that I didn't want to skimp or short change my accounting team as they have saved and helped me mak...”
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Saranto Calamas Office
- Job
- Decision
- Knowledge
“I have used several accounting services in my life but none combine the up to the minute knowledgeable accounting with old time friendly customer service that you won't find anywhere.”
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James Castaldo CPA & Associates
“James Castaldo has been preparing my taxes for several years, with great planning James has been saving me more money on my taxes than my overall fee, I recommend James Castaldo to all my friends and I get constant compliments on his results.”
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Bookkeeper360
“!! From my Onboarding Crew who helped me through a TOUGH transition (Hailey Ford and Dave Bornt) to our Tax Prep team who juggles A LOT for us (Ryan Anvari and Hiram Chan) to Brandon Cooperman and Steven Muller”
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Long Island Tax, Accounting, & Advisory Services
- Communication
- Team
- Interest
“The personal service I received made me feel valued as a client and I recommend their services to everyone I know who is tired of receiving sub-par service from their tax and accounting provider.”
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Herman P Ortiz CPA
- Informative
- Tax Returns
- Financial
“Ortiz's services and vast knowledge of the extensive US tax codes & laws were a huge help when starting my business in 2014 and would not have been able to get started without him.”
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Fine & Clear Tax Solutions
- Tax Return
- Emails
- Job
“Guy is really helpful, I had a question related to EV tax credit and how to file taxes, he seemed really knowledgeable and was able to direct me to the right website and also his newsletter is of great resource.”
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O'Neill & Associates
- Tax Advantage
- Calls
- Tax Returns
“I have gone here for years and the service is great, the work is accurate, and the staff is extremely responsive to requests/questions.”
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Ambrosio & Bellotti, Cpas
“Very attentive to details and they always go above and beyond!”
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John Lepore, CPA
- Stress
- Tax Return
- Pay
“I found John about a year ago and he has been incredibly helpful, patient, and does a great job explaining and fixed some of those previous mistakes for me as well.”
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Michels & Hanley Cpas
- Questions
- Small Business
- Team
“But, more than that, the tax advantages you will realize from dealing with such knowledgeable professionals in the very overwhelming world of tax preparation and planning, not to mention the wealth of knowledge you will receive yourself from your int...”
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Bright and Morning Star Accounting Services
- Small Business
- Quickbooks
- Financial Statements
“Bright and Morning Star Accounting got me all setup and Quick Books and currently I can properly job cost and calculate percentage of completion on my construction jobs.”
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Anne Napolitano Consulting
- Needs
- Small Business
- Knowledge
“Anne Napolitano Consulting takes the time to understand my business, listen to my needs, and provide solutions that streamline my operations and improve my business.”
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Edward Helm CPA
“It is nice to know there is a reliable source that takes a personal interest in my finances and has provided useful recommendations and tips on investment options that would suit my needs.”
Why these companies made our list
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