Established in 1986, Sinco Data Processing Systems, located in Uniondale, also serves Nassau County, NY, Queens County, NY, and the surrounding areas. Specializing as a valuable resource in tax preparation services, we work diligently with our team of expert tax consultants to offer comprehensive business accounting and tax services. With over three decades of experience, we are committed to optimizing your tax and accounting processes while ensuring compliance and adding value to your business. Contact us today to optimize your financial performance and tax savings with Sinco Data Processing Systems.
