What happens if you forget to add a 1099 income form to your taxes after you filed already.?

Ok, so I filed my taxes electronically already and then I get in the mail another 1099 form, which decreases my refund after I input it into my software program. I know I need to ammend my return, but in the meantime, what does the IRS do? Do they still go forward with electronically giving me a refund? Or is it stuck in limbo until I file and the IRS processes the ammended return?

Just let the original return run its course and take the check. Then file your amended return. Write a check for the difference and send it to the IRS. But file your amended return as soon as possible to avoid interest.

We did that too, and here's what our tax guy told us...
You have to get it amended. There is a form for this to fill out, and then attach that and your form to copies of all the original information that you sent in, and send ALL of it in. It will take a few more months for that to get processed, but in the meantime you will recieve a refund for the original unamended amount.

I would wait a few weeks before filing the 1040x. If you failed to keep accurate records and forgot one 1099-Misc, you probably forgot others as well.

Be sure to attach the corrected schedule C and schedule SE's if this is "non-employee compensation" of more than $400.