7 Accountants in Islandia, NY

Browse verified accountants in Islandia, New York. Compare providers and find contact information.

SMG ABA LLC

★★★★★ (127 reviews)
300 Corporate Plaza, Islandia, NY 11749
(631) 481-8600
Website: smgaba.com
Hours: {"Friday":["8:45 AM–5:30 PM"],"Monday":["8:45 AM–5:30 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["8:45 AM–5:30 PM"],"Tuesday":["8:45 AM–5:30 PM"],"Wednesday":["8:45 AM–5:30 PM"]}

Slawski Carolyn D CPA

★★★★★ (8 reviews)
1757 Veterans Memorial Hwy, Islandia, NY 11749
(631) 234-2350
Website: www.carolynslawskicpa.com
Hours: {"Friday":["9 AM–5 PM"],"Monday":["9 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}

Garritano CPAs, CFOs

★★★★½ (9 reviews)
1601 Veterans Memorial Hwy # 315, Islandia, NY 11749
(631) 218-6800
Website: www.gsgcpa.com
Hours: {"Friday":["9 AM–5 PM"],"Monday":["9 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}

Owen Petersen & Co., LLP

★★★★★ (3 reviews)
1757 Veterans Memorial Hwy #14, Islandia, NY 11749
(631) 321-9800
Website: owenpetersen.com
Hours: {"Friday":["9 AM–5 PM"],"Monday":["9 AM–5 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}

Ferrera Destefano & Caporusso Certified Public Accountants, P.C.

★★★★★ (3 reviews)
50 Corporate Plaza, Islandia, NY 11749
(631) 348-0700
Website: www.fdccpa.com
Hours: {"Friday":["9 AM–6 PM"],"Monday":["9 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–6 PM"],"Tuesday":["9 AM–6 PM"],"Wednesday":["9 AM–6 PM"]}

Abrams Robert S CPA

★★★☆☆ (4 reviews)
3033 Express Dr N, Islandia, NY 11749
(631) 234-4444
Hours: {"Friday":["9 AM–6 PM"],"Monday":["9 AM–6 PM"],"Saturday":["Closed"],"Sunday":["Closed"],"Thursday":["9 AM–6 PM"],"Tuesday":["9 AM–6 PM"],"Wednesday":["9 AM–6 PM"]}

Balog & Associate, CPAs, PLLC

★★★½☆ (3 reviews)
1440 Veterans Memorial Hwy, Islandia, NY 11749
(516) 472-2631
Website: www.markbalog.com
Hours: {"Friday":["9 AM–5 PM"],"Monday":["9 AM–5 PM"],"Saturday":["9 AM–5 PM"],"Sunday":["Closed"],"Thursday":["9 AM–5 PM"],"Tuesday":["9 AM–5 PM"],"Wednesday":["9 AM–5 PM"]}

About Accountants in Islandia, NY

Islandia, New York, is a vibrant hub for business and industry, home to corporate headquarters like Canon USA and a mix of retail and service companies. Its proximity to Long Island’s major highways makes it a strategic location for entrepreneurs, small business owners, and professionals. Whether you run a local shop or manage a growing firm, Islandia’s active economy creates unique tax situations—from sales tax compliance to multi-state filings.

You might need an accountant in Islandia to navigate complex tax codes, maximize deductions, or handle payroll for seasonal staff. Even for individuals, the area’s higher cost of living means careful planning around property taxes or investment income can make a real difference. A local accountant understands New York state regulations and can help you avoid costly mistakes.

At BeforeTaxUSA.com, we connect you with qualified tax professionals in Islandia who know the community and its financial landscape. No matter your situation, having the right guidance ensures you stay compliant and keep more of what you earn.

Frequently Asked Questions

What services does an accountant provide?

Accountants typically offer bookkeeping, financial statement preparation, tax planning and preparation, payroll services, accounts payable and receivable management, and general financial consulting for both individuals and businesses.

How do I choose the right accountant?

Look for an accountant with experience in your industry or tax situation, check their credentials and references, ask about their availability during tax season, and make sure they use modern accounting software. A good accountant should be proactive about finding deductions and keeping you compliant.

What is the difference between an accountant and a bookkeeper?

A bookkeeper records daily financial transactions, while an accountant analyzes financial data, prepares tax returns, and provides strategic financial advice. Many accounting firms offer both services, with bookkeepers handling the day-to-day work and accountants overseeing the bigger financial picture.

BeforeTaxUSA.com is a free informational directory. Listings are compiled from publicly available data and do not constitute an endorsement or recommendation. Verify credentials, licensing, and reviews independently before engaging any professional. Listings appear in no particular order unless otherwise noted.

Business owners: to update or remove a listing, email info@beforetaxusa.com.

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