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King and Associates, CPA
“Quality quick service would recommend them to any of my family members or business associates.”
Best CPAs near Islip, NY
These firms serve Islip from nearby bases in towns including Melville, East Islip and Smithtown.
24 firms listed · 1 open 24/7 · 10 open weekends · 23 rated 4.5+ · 1 shows a license
Data verified October 21, 2026
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Mlcpas
“Every year my return have some intricacies ranging from multiple state taxes, double taxation, ITIN application, child tax credit to Foreign earned income reporting.”
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James P Phelan CPA
“Everyone here is friendly and they care about serving their customers.”
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Lindenhurst CPA
- Interactions
- Communication
- Prep
“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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Edwin Casanova, CPA
- Small Business
- Tax Return
- Understanding
“I used Edwin to review my solar panel taxes last year and he was able to amend my previous years taxes and get me a few thousand dollars my last guy missed.”
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Ross & Company, CPA
- Finance
- Team
- Responsive
“One of the best parts, besides everything described above, is Glen's willingness to answer questions and to offer help throughout the year for any new tax questions at no extra charge (e.”
The 24 firms listed for Islip, NY are accounting practices that serve businesses and organizations. What each states about its CPA license and assurance work comes from its own website; ratings and quotes come from public reviews.
Area overview: Islip, NY
The 24 firms on this page are rated from 4.0 to 5.0 across 1,028 reviews; 6 have 50 or more reviews and 23 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (97%), responsiveness (81%) and quality (70%). The topics that come up most in reviews of the firms on this page are "efficient", "communication" and "knowledge". 1 is open around the clock; 10 are open on Saturdays and 2 on Sundays. The services the firms on this page list most often on their websites are tax services (12), business services (7), quickbooks services (6), services for individuals (6) and estate planning (4). 1 shows a license on its website and 3 have a BBB rating of A or A+. 19 have ten or more years of experience, the longest 33 years. 1 offers urgent consultations; 6 offer payment plans and 11 offer a free initial consultation. We have a website on file for all 24 of the firms on this page; all 24 publish a contact page; 17 list a public email and 3 take bookings online. We count these figures across the firms on this page; hours and prices change, so confirm the details with the firm before you book a consultation.
Which CPA firms listed for Islip list their assurance services?
Website details are held for all 24 firms on this page. Most name the engagement types they perform and the industries they serve, which is the quickest way to see whether audit work is core business or an occasional job for them.
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Kyle F. Lester, CPA
- Tax Return
- Questions
- Knows
“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
- Call
- Knows
- Team
“He not only helped organize my taxes with in coming in from multiple counties, but he also personally assisted in the creation of my new self employed company in person.”
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SMG ABA
- Hospitality
- Questions
- Management
“Wes is always there without doubt and David is such a great person to work with from understanding your needs to helping you get to where you need to go!”
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Saranto Calamas Office
- Planning
- Questions
- Decision
“My organization the Long Island Advancement of Small Business, a Not for Profit organization is not a simple matter with the continued changes to the IRS laws on a yearly basis.”
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James Castaldo CPA & Associates
“James Castaldo has been my accountant for over a year and has taken care of all my tax and accounting needs from my business to my personal and ever my family taxes.”
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Herman P Ortiz CPA
- Financial
- Tax Returns
- Informative
“They've done an excellent job, are readily available whenever I have questions and offer advice and solutions to benefit myself and business, that I otherwise wouldn't know.”
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Fine & Clear Tax Solutions
- Questions
- Emails
- Tax Return
“Guy Finocchiaro not only handled my IRS mess, was able to correct, rework, significantly reduce what I owed back then, and getting refunds instead of my normal owing year after year.”
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Ambrosio & Bellotti, Cpas
“Very attentive to details and they always go above and beyond!”
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Francis Tax and Accounting Service
- Efficient
- Call
- Tax & Accounting
“I am a retired IRS Employee and could do my own taxes but I know she is that second set of eyes to keep me doing my tax obligations and not paying more than I have to.”
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Jones, Little & Co., Cpa's
- My Business
- Law
- Companies
“I highly recommend their services to anyone seeking not only professional expertise but also a level of care and dedication that is hard to find elsewhere.”
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Thomas Brown CPA
- Number
- Financial
“Thomas Brown and his staff are always courteous, knowledgeable, responsive, appropriate, creative, and helpful and all within the parameters of the rules and regulations governing taxation.”
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Raisman CPA
- Generations
“I have this respect for Al and the firm because no matter what comes up requiring their services, I know it will be handled proffessionally and thoroughly.”
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Michels & Hanley Cpas
- Communication
- Small Business
- Questions
“They are uniquely focused on the needs of the Small Business Owner and Professional Individuals, and are willing to go the extra mile to ensure that make sure I get the guidance I need for my specific situation.”
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Cerini & Associates
“Ken and his associates are extremely knowledgeable in the SED Preschool Special Education world and are always very willing to share information across the state.”
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Joseph Scarpa CPA
- Financial
- Insight
- Corporate
“If you want more insight into your business than you've ever dreamed, while maximizing your net-after-tax income, get in contact with Joe - you'll be very glad you did!”
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Rost & Company, Cpas
- Tax Return
- Questions
- Documents
“Such a seamless transaction through their secure portal where you just sign in and upload all of your documents, and they handle the rest with nothing to worry about.”
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Weisman & Co., Cpa's
- Mind
- Company
- Personal Financial
“Lanny, Along with your team of professionals, your skills and talents have kept us on an even keel for 25 years without drastic tax burdens at any one time.”
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Sales Tax Defense
“I have referred them numerous times and always received very happy notes from grateful clients.”
Financial Statement Audit Services in Islip, NY Cost Estimates
Minimum cost
$1234
Maximum cost
$4319
National Average
$2468
Avg Per Hour Rates
$371
$2222
$3085
Typical price range is based on 291 cost profiles
Why these companies made our list
What clients say about firms near Islip
- “I have been using Raisman CPA for many years, both at a personal and company level, and can say that they have been outstanding.” — client of Raisman CPA
- “Very happy with James Castaldo CPA & Associates! The firm is very professional, efficient and friendly.” — client of James Castaldo CPA & Associates
- “I would not hesitate to recommend Joseph Scarpa CPA to anyone looking for a qualified and personable individual to help guide them through the complicated tax laws that exist.” — client of Joseph Scarpa CPA
Excerpts from public reviews of the firms listed on this page.
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