The original return and the amended returns have totally separate processing paths ... your original return has been ACCEPTED (not approved) for processing ... once the return has completed processing then the IRS may APPROVE the refund for dispersal.
Until you get the original refund you do not know for sure if the IRS will adjust the return and send a different amount. It is imperative that you do NOT mail in the amended return until you get the ORIGINAL refund ... once you have the original refund in hand only then should you mail in the amended return ... if you have a balance due on line 20 a payment must be sent with the 1040X which represents the excess paid to you on the original refund.
Look at the form 1040X …
Column A should have the figures from the original return, Column C the corrected figures and Column B the differences between the other 2 which needs an explanation on page 2 of the form 1040X.
If you completed it correctly you will see an entry on either line 16 OR 18:
On line 16 should be the amount you paid with your original return.
On line 18 should be the amount of your original refund you received.
Then you will see your extra refund on line 22 OR the new balance due you need to pay on line 20.
