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“If you're looking for an accountant that specializes in navigating California / New York State taxes, Ian is your person.”
Best Accountants in Smithtown, NY
15 firms listed · 8 in Smithtown · 1 open 24/7 · 6 open weekends · 12 rated 4.5+
Data verified October 27, 2026
Edwin Casanova, CPA
“We have been working for 4 years now and he is always patient when walking us through the tax process and when gathering the proper info.”
Raisman CPA
“I have been working with Raisman for over 10 years now and could not have been happier.”
William Carpenter CPA
“He is right on top of everything and sends the latest information our way.”
Louis A. Soriano Cfp, EA - Navigator Financial
“Lou is truly the best and is willing to be as involved in your bookkeeping as you want.”
Craig Fitzsimmons & Michaels
The 15 firms listed for Smithtown, NY prepare accounts, statements and returns for businesses and individuals. What each says about its services and software comes from its own website; ratings and quotes come from public reviews.
Area overview: Smithtown, NY
Of the 15 firms we list here, 8 are in Smithtown itself and 7 come from towns including Hauppauge (1, 3 mi), Islandia (1, 5 mi) and Lake Grove (1, 5 mi). 13 of the firms on this page have a rating, from 4.2 to 5.0 across 1,621 reviews; 8 have 50 or more reviews and 12 are rated 4.5 or higher. The topics that come up most in reviews of the firms on this page are "efficient", "knowledge" and "expertise". 1 is open around the clock; 6 are open on Saturdays and 3 on Sundays. The services the firms on this page list most often on their websites are quickbooks services (4), tax services (4), business services (3), bookkeeping (2) and financial planning (2). 2 have a BBB rating of A or A+. 12 have ten or more years of experience, the longest 59 years. 1 offers urgent consultations; 2 offer payment plans; 3 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 accounting firms listed for Smithtown describe their services online?
All 15 firms on this page have a website on file. Most list the industries they serve and the bookkeeping software they support, which is the fastest way to find a fit. Everything there is the firm's own description of itself.
Dominic Marsicovetere & Co
“And when im out of town they send my taxes to me.”
Jeffrey T Spiegel CPA
Saranto
“He has helped me not only with saving money on my taxes but also has helped guide me with my financial goals for the future of my business.”
Kassman Accounting
“And it's not just the owner Myles Kassman who is incredible and a true professional, but if you read some of the reviews and see what people say about the other people at the company at many levels, starting with his son Marshall, it's not a one-man band of excellence- it's a total orchestra of men and women dedicated to understanding the tax laws, their incredible helpfulness and availability,...”
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Soloway Advisory - Tax Preparation Service
“I appreciate all the advice she gives me with my business taxes.”
SMG ABA
“!!!! No one comes close to this man's work ethic and dedication your doing yourself an injustice if you aren't using him as your accountant”
Castaldo CPA
“I have been using James Castaldo CPA & Associates for over eight years for my business, Adams Court Reporting, Inc.”
Cerini & Associates
“The NFP expertise Ken and Matt bring to the table is unparalleled.”
Cycle CPA
“I can now confidently make financial decisions about my business with the information she provides me on a monthly basis.”
Why these companies made our list
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