As a preeminent provider of state and local tax services, DSF combines knowledge, experience and technology to provide the highest quality personalized service. With over 60 years combined experience, DSF’s partners and associates have provided superior client service. We focus on the following state & local tax programs Income/franchise based tax credits and incentives, including: Business and Manufacturing Investments Enterprise/Empowerment Zone Activities Research and Development Local – cities and counties Sales and use taxes Gross receipts taxes Federal and state excise taxes Local taxes Other miscellaneous taxes