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Rossman Tax Service, Inc.
16 Roosevelt Avenue
Port Jeff Station, NY 11776

(631) 473-2022

(631) 473-0521

We're currently closed.We're open again on Wednesday (July 24, 2024) from 8:00 am to 8:00 pm

Business Hours

Sun. Closed
Mon. 8:00 am – 8:00 pm
Tue. 8:00 am – 8:00 pm
Wed. 8:00 am – 8:00 pm
Thu. 8:00 am – 8:00 pm
Fri. 8:00 am – 8:00 pm
Sat. 8:00 am – 4:00 pm
In 1979, after working seven years for the Internal Revenue Service, Howard Rossman started Rossman Tax Service. Through first class customer service, Rossman Tax Service began to grow rapidly. Shortly after the business started, Adria Rossman joined the business in order to implement computers into our service. In 2001, after three years of working for Arthur Andersen and obtaining his license, Joshua Rossman began working for Rossman Tax Service. Currently we service clients living in 36 states and 8 countries.

Rossman Tax Service is an independent and family oriented accounting and consulting firm located on the North Shore of Long Island, New York. We offer a wide array of personal and business services, from income tax preparation to cash flow analysis. Our commitment to customer care is unmatched; and the quality and pride we take in our work immediately distinguishes us from any other tax firm on Long Island.

Please take a moment to continue browsing our site. There are many useful tax forms conveniently available in the “Rossman Tax Service Forms” section, and a “Contact Us” section where you can email us with any questions or concerns you have.

If you are one of our many satisfied clients, please take a look at either our Personal or Corporate Appointment Checklist page for some useful forms for you to bring to your next appointment. By doing so, you will help us to improve the timeliness of our service.

Whether you are seeking assistance with tax preparation or with starting a business, we believe that we can offer you the professional guidance, as well as the time and money saving solutions you’ve been looking for.

Thank you for being a part of our rich tradition.

Adria Rossman

Howard Rossman


howie_adria_rossmanA message from Adria Rossman, President & CEO regarding our Founder, Howard Rossman:
” Rossman Tax Service was founded by Howard Rossman in 1979. Howard graduated from Queens College in 1971 and was employed by the Internal Revenue Service for 9 years. Howard left the Internal Revenue Service and inherited the business from his uncle who had started the practice in New York City during 1950s. When Howard began with the business he would travel to New York City on weekends to meet with his clients in rented Travel Agency. As the business grew Howard began to see the clients in our home. We remained working from our home until 2009 when we moved the business to our current location at 16 Roosevelt Avenue in Port Jefferson Station NY.

Howard’s main focus was always his clients; they were his family. He would often be found in the waiting room sitting with the clients exchanging stories or telling jokes. He was often heard saying to the clients “Don’t Worry, Taxes Are Fun” Howard would also tell his clients “You are the most important person in the world to me at this moment” and he meant it! To Howard this business was as he used to say “more than just taxes”. He truly loved his clients and in turn they loved him. His legacy to this business is the compassion and care we continue to give to the Rossman Tax Service client. Howard was also beloved by the staff and he was looked at as a mentor and friend. Many of them called him Uncle Howie. His sense of humor and good nature made what could otherwise be a very stressful job into a fun and loving place to work. Howard would always walk around the office and talk to the staff or call them to his office when he saw that they needed a compassionate and encouraging voice. Sadly, Howard passed away in June 2015. I am very grateful for having had this wonderful man in my life. He was a wonderful father, husband, business partner and friend. He is truly missed by us all. He left a wonderful legacy and we will keep it and his name alive forever. ”

-Adria Rossman

Adria Rossman


adria_rossmanAdria Rossman, mother of 2, graduated from Nursing School in 1983. Early in her career as a nurse she also worked during tax season with her husband Howard in the tax practice. New to the tax industry Adria’s main focus was Customer Service and Operations. In 1990 Adria left nursing to pursue a full-time career with Rossman Tax Service. Initially she assumed the role of Office Manager, due to her success in this role Adria became President of Rossman Tax Service. Working alongside with Howard, Adria introduced and implemented new innovative ideas that vastly improved the overall production of the company. Adria also recognized the importance of technology and launched the modernization of computerized software in order to improve and meet the needs of our clients. As the business expanded Adria studied for and passed the Enrolled Agent Exam. As an Enrolled Agent (EA) Adria is a federally-authorized tax practitioner who has technical expertise in the field of taxation and who is empowered by the U.S. Department of the Treasury to represent taxpayers before all administrative levels—examination, collection, and appeals—of the Internal Revenue Service. Along with her son Joshua, Adria continues to introduce new ideas to the company and always places customer service as her highest priority.
My goal for the future of this business is to have the legacy my husband Howard started with this company to continue with my children and hopefully my grandchildren and have them service our clients for many years to come

-Adria Rossman, President & CEO

Joshua Rossman

Vice President

joshua_rossman Joshua Rossman, CPA is a Senior Executive at Rossman Tax Service Inc.  After receiving his Bachelor’s degree from Boston University, Magna Cum Laude in 1998, Joshua Rossman worked at Arthur Andersen LLP for 3 years.  Joshua received his license in 2001 and then joined Rossman Tax Service Inc.
Joshua’s areas of practice include income, sales, gift, and estate taxes both for individuals and businesses.  He has handled the preparation of thousands of tax returns, far more than the average practitioner.  Joshua is also experienced in handing audits and collection matters with IRS, New York State Taxation, New York City Taxation, and New York State Department of Labor.
Joshua’s vast experience gives him a commanding understanding of tax law as well as its application in the real world.  Joshua’s clients benefit from his obsession for customer service and his genuine interest in showing clients how to save money.

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If you need to make an appointment, please call our office at 631-473-2022.
Appointments cannot be made through the Contact Us form.