You need to amend your return.
However, slow down. The amended return form 1040-X will not be available until mid-February.
You CANNOT e-file an amended return, you must PRINT and MAIL it --it usually takes the IRS 2-4 months to process an amended return.
Finally, you need to WAIT until you find out if your return has be REJECTED or ACCEPTED.
If it has been rejected that you can simply make the corrections required to fix the rejection AND at the same time add the information for your spouse, and re-submit your CORRECTED e-filed return.
If it has been accepted you will have to prepare and mail an amended return ---BUT WAIT until you receive your refund before filing the amended return.
