@egaurav22 , your wife came in on dependent visa ( H-4) and so her status would be same as yours. However once she changed to F-1 , she is on an independent status and files as married on form 1040-NR ( not supported by TurboTax ) and essentially treated as single for tax purposes. You file using your H- 1 visa as married filing separate and form 1040 ( supported by TurboTax). She has five years of exmption from counting days present from the time of change of status ( 2015? ) i.e. by the end of 2019 she starts counting days towards Substantial Presence Test.
So how did you file your 2016, 2017, 2018 returns ?
Namaste ji
