1. Determine if you are required to file a tax return. You are required to file a federal income tax return if you are a citizen or resident of the United States or a resident of Puerto Rico. Your marital status, age, filing method, and income all affect whether or not you are required to file taxes.
proficiency testing. proficiency testing. a program in which specimens of quality control material are periodically sent to members of a group of laboratories for analysis, with each laboratory's results compared with those of its peers. See also: proficiency samples.
software. a program written in a computer language telling a computer to perform a given task. database access software programs that make it easier to use regular online systems by providing an interface between the user and these systems. This interface can translate a search statement into the command language of the system, and sometimes provide automatic dialing, access, and so on.