In 2017 for example, the minimum for single filing status if under age 65 is $ 10,400. (hrblock.com)
2Net investment income may be subject to an additional 3.8 % Medicare tax, applicable to certain individual taxpayers to the extent their modified adjusted gross income exceeds $ 200,000 for those with single filing status, and $ 250,000 for joint filers. (amgfunds.com)
If the divorce is not yet final, you are not allowed use the single filing status. (sapling.com)