After you file

you may be REJECTED again, because it takes some time for the IRS to sync up with that change.

 

You have till May 17th to file.

OR, Oct 15 if you request an extension.

you can't amend what the IRS does not have.

 

You want to e-File, not mail, because paper returns are way backed up.

OF COURSE, Oct 15 is along way off.