Castaldo CPA is a Long Island CPA firm 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.

Growing and preserving your wealth for future generations requires a comprehensive estate plan.
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We'll draw on our wealth of tax planning experience and offer advice on what choices make the most financial sense.
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Our Certified QuickBooks® ProAdvisors are well-versed in the routine and advanced features of QuickBooks software.
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Schedule your consultation today and get a free copy of our guide, "7 Beautiful Ways to Lower Taxes - One Big Beautiful Bill New Tax Law"
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