New Question on Amended Tax Return

I failed to include a 1099-DIV. I am going to have to amend the return as this reporting impacts my refund. The new twist is that originally I chose to apply the refund to next year's taxes. I understand that I should wait to file the amended return, but how do I know when to file the amended return - since I am not going to receive the refund? Do I check the IRS website for status?