DSJ CPA is a full-service accounting firm with a staff of highly trained and dedicated accounting and bookkeeping professionals. We provide a wide range of accounting and tax expertise to individuals, businesses, not-for-profit organizations, schools and other agencies. The firm, established in 1972, has been built on the highest standards of knowledge in the fields of business management, financial planning and taxes pertaining to estates, trusts and businesses, as well as individuals. From our offices in Massapequa, New York we service clients throughout Long Island, the five boroughs of New York City, Westchester County, Connecticut and New Jersey.