I was on a J1 visa since July 2017, I paper filed my taxes in the past three years as non-resident alien. I got married to US Citizen in 2020 and we are filing jointly for 2020 tax now. Am i a resident for tax purposes now as I am here for more than 3years? Some says J1 need 5years to be treated as resident for tax purposes: some says 3years. What is correct in my situation? Do we (me and my US citizen spouse) need to attach a letter stating that I would like to be treated as a resident when we file the tax married jointly for the year 2020? Can we e-file jointly? Please advise. Thanks so much.
