I got married in december 2023 but I filed tax as single in 2023 and 2024. How do I amend it? My wife has never been to usa and do not have ssn or itin

[pk]

@ammon626  well congratulations  are in order.

(a) what is your own status--- US person ( citizen/GreenCard/ Resident for Tax purposes )  or NRA ?

(b) If you were not a  US person ( citizen/GreenCard/Resident for Tax purposes ), then we need to know  which country you are from ?  There may be  tax treaty considerations.

(c) To amend a return ( from single ) to MFJ, your spouse needs to have a tax id ( TIN --- SSN / ITIN ).  However, generally the TIN is not retroactive ( except for the  current filing season ).

(d) Also note that if you filed as single while being married ( and filing  form 1040 as a US person ), you may be subject to perjury jurat.

Having said all of the above , please answer my questions  and I will circle back and help -- yes ?