Definition of Filing status
One of four categories used by an individual in preparing his or her income taxes. The four categories include: (1) single, (2) head of household, (3) married filing a joint return, (4) married filing separate returns. The taxpayer’s filing status determines the tax rate schedule to be used in calculating the individual’s tax liability. The filing status with the most advantageous rate schedule is "married filing a joint return.”
That's the definition of Filing status in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.