first I'm surprised that the IRS did not catch the Single filing status on her return. from your return they should have noted the error on her return. do use your current address. you may want to call the IRS to make sure then don't have a correction notice in process or maybe mailed it to your old address which then was not forwarded. if they do ask them for the steps to take if you are going to change to MFJ. if you're going to stick with MFS then take steps to update the address so you get the notice and probably an additional refund.
MFJ may be better than two MFS returns
here are the steps and what the IRS says
- Print a copy of both separate returns that were filed and accepted by the IRS and/or state.
- Select one of the two returns to amend, and enter the data for the other spouse into that return in the TT program.
- Print the combined return and carefully compare it to each of the separate returns to ensure ALL information has been combined on the amended return.
- Complete the amendment explaining the change
- Submit a copy of both original Federal returns with the amendment (Form 1040X) as this will help the IRS to track the combining of those two returns.
