James Castaldo CPA & Associates | 631-302-1945
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At James Castaldo CPA & Associates, we provide personalized support.



Proactive tax strategies that are legal, ethical, and highly effective.

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Helping businesses select the right business structure to minimize tax liabilities.

Accounting strategies


Request a consultation to find out what we can do for you and your business

Long Island CPA Accounting Services

James Castaldo CPA & Associates is a Long Island CPA firm located in Lake Grove, offering comprehensive accounting and tax services for small businesses and individuals. We provide tax preparation, outsourced accounting and bookkeeping, retirement and estate planning, new business advisement and more.

In addition to our wide range of accounting and bookkeeping services, we also work with new businesses to select the best entity and develop a sound business plan so they start off on the right foot. We can devise tax planning strategies that retain more of your profits and provide tax preparation services for both businesses and individuals.

For all of our clients, our goal is to form a long-standing professional relationship. We’ll take the time to listen carefully to your concerns then forge a plan to meet all your accounting, bookkeeping and tax needs. Please call us today at 631-302-1945 and accept our invitation for a free initial consultation. We look forward to hearing from you.

Tax and Accounting Services

accounting service

Business Accounting

If your small business needs its bookkeeping and accounting needs to be taken care of, our experienced CPA firm can lend you a hand.

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tax services

Tax Services

From income tax preparation for individuals to tax planning services for small businesses in Long Island, we'll provide the tax services you need.

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Setting up QuickBooks for the first time? Need to learn how to use QuickBooks to help your business? Or do you need us to review your data files?

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new business

New Business Advisor

If you're starting a new business, it's important to choose the right entity that will work for you. Our experienced accountants will know what's best for your situation.

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enhancer our offices

Lake Grove

6 Forest Avenue

Lake Grove, NY 11755

Telephone: 631-302-1945

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68 South Service Rd

Melville, NY 11747

Telephone: 631-440-5447

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150 Motor Parkway

Hauppauge, NY 11788

Telephone: 631-824-0046

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