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About Us

Since founding our accounting firm on Long Island in 1989, we have been providing clients in the New York tri-state area with the best accounting, tax, financial planning and business consulting services by matching our services to their specific needs. We take the time to learn your unique business, goals and objectives. Our experienced CPA‘s and Certified Financial Planners then apply their specialized industry knowledge to your unique situation to help you achieve financial success.

We can offer you this level of service because of our structure and size. We are large enough to enable our professionals to specialize, yet small enough to adapt nimbly to your unique situation. Our low staff-to-partner ratio assures our clients’ significant partner attention and continuity of personnel.

We take pride in the professionalism of our partners and staff. Our practice is regularly peer reviewed by the New York State Society of CPA’s. This assures our clients that we can meet our commitment to quality and service for our clients and that our professionals serve our clients in a way that is competent, objective and with due professional care.

We offer a wide range of accounting, tax and financial services for our individual and business clients with offices located in NYC and Lake Success, Nassau County, Long Island, NY and Connecticut. We are a registered Firm with the AICPA, NYSSCPA and the PCAOB, and have continued to receive our NYS/PCAOB peer review certification.

We'd like to provide you with an opportunity to get to know our staff as well as our firm's values before you come to see us. The following pages should give you an idea of what we're all about. We hope you enjoy them!

Our Mission
Michael C. Allen & Co., CPA's PLLC provides outstanding service to our clients because of our dedication to our underlying principles.
 
Meet Our Team
Michael C. Allen & Co., CPA's PLLC is a full-service Certified Public Accounting firm licensed in NY. All our CPA's hold valid NY State CPA Certificates.
Client Reviews
We strive to provide the best possible service for our clients. Please leave a review to let us know how we are doing and to share your experience with others.
 
COVID-19 Update
The health and safety of our Michael C. Allen & Co., CPA's PLLC team and clients in Lake Success, NY is our top priority. With the COVID-19 virus having an increasing impact in our community, we want to let you know how our business is addressing this situation. Currently, our offices are still open for appointments.
Make-A-Wish Foundation
Michael C. Allen & Co., CPA's PLLC is a proud sponsor of a child’s wish through the Make A Wish Foundation.
 
Employment Opportunities
Check this page from time to time for specific employment opportunities.
Blog
Read our company blog for interesting posts about our activities and thoughts on the latest financial news.
   

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Please call us today at (516) 775-3000


We take pride in the professionalism of our partners and staff. Our practice is regularly peer reviewed by the New York State Society of CPA’s. This assures our clients that we can meet our commitment to quality and service for our clients and that our professionals serve our clients in a way that is competent, objective and with due professional care.

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