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Kassman Accounting
- Questions
- Informative
- Team
“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”
Best Tax Preparation Services near Islip, NY
We have one company in Islip on file, and it is on this list, along with 23 from towns including Central Islip (5, 3 mi), East Islip (3, 0 mi) and Bay Shore (2, 3 mi).
1 open 24/7 · 11 open weekends · 21 rated 4.5+ · 1 shows a license
Data verified October 18, 2026
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King and Associates, CPA
“Quality quick service would recommend them to any of my family members or business associates.”
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Don Coley & Associates
“Excellent people-oriented service!”
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James P Phelan CPA
“Everyone here is friendly and they care about serving their customers.”
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LOS Tres Ositos
“So professional all the stuff, very knowledgeable and they really have full and respectfully people I've been doing almost 15 years business with them definitely recommended for everyone”
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E-Taxman
“Both of my parents have recently passed away and Bill made the process of filing my parents taxes as easy as possible for me.”
The 24 companies listed for Islip, NY prepare and file tax returns for individuals and small businesses. What each says about its services and credentials comes from its own website; ratings and quotes come from public reviews.
Area overview: Islip, NY
23 of the 24 companies on this page have a rating, from 3.9 to 5.0 across 1,587 reviews; 11 have 50 or more reviews and 21 are rated 4.5 or higher. When clients rate these companies on specific qualities, they most often praise professionalism (95%), responsiveness (76%) and quality (71%). The topics that come up most in reviews of the companies on this page are "efficient", "knowledge" and "attention to detail". 1 is open around the clock; 11 are open on Saturdays and 5 on Sundays. The services the companies on this page list most often on their websites are tax services (8), quickbooks services (5), business services (4), payroll services (3) and services for individuals (3). 1 shows a license on its website. Domain records put 13 websites of the companies on this page at ten or more years old; the oldest dates from 1998. 1 offers urgent consultations; 3 offer payment plans; 6 offer a free initial consultation and 1 lists coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book a consultation.
Are any tax preparers listed for Islip open on Saturdays or Sundays?
11 of the 24 companies list weekend hours. Extended and weekend opening is common through the filing season and disappears afterward, so the hours shown here may not match what you find in the quiet part of the year. Call before you travel.
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TLN Services
“Highly recommended for her punctuality, kindness, and exceptional service”
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MAS TAX Services
“Very good people :)”
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George Fritz Tax Preparation
“He is friendly, very knowledgeable and follows through when he says he will.”
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Warenik-Serini Tax Services
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LCH Bookkeeping
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Notchbooks
- Questions
- Deductions
- Team
“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.”
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Lindenhurst CPA
- Tax Return
- Interactions
- Questions
“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
- Communication
- Small Business
- Questions
“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
- Finance
- Questions
“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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Taxmaster of Melville
- Accountant
- Call
- Questions
“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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Kyle F. Lester, CPA
- Knows
- Advisor
- 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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Soloway Advisory - Tax Preparation Service
- Team
- Company
- Questions
“Alisa has been doing my Taxes for about 10 ++years, her knowledge of the tax laws combined with her great personality lessens the pain of this wonderful annual experience of paying the government our hard earned money.”
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SMG ABA
- Financial
- Hospitality
- Team
“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
- Planning
- Team
“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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Property Tax Reduction Consultants
- Money
- Grievances
- Company
“I'm not being Critical of Your Process, I'm quite sure that you are doing your best, but If My Mortgage is still being Increased because of the Increase in My Taxes, what is the use of Protesting Them”
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Tait's Tax Service INC
- Season
- The Future
- Questions
“I used nick to do my taxes, as well as my moms…I used accountants in the past and he was by far the most professional, patient and detailed oriented I ever dealt with…not only that but he was prompt and responsive which is very strange to find during...”
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Sacco Tax Accounting
- Fair
“I fill out senior freeze forms left it at north Bergen library and had not received information as to when I should pick up firm there is a due date of October 31.”
Tax Preparation & Planning Services in Islip, NY Cost Estimates
Minimum cost
$309
Maximum cost
$3085
National Average
$556
Avg Per Hour Rates
$294
$371
$803
Average price range is based on 415 cost profiles
Why these companies made our list
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