What exactly did you do to amend----one hour after e-filing? Did you actually prepare a Form 1040X and send it in? (By the way------you should WAIT for an original return to be fully processed instead of panicking and trying to amend within minutes.) Did you e-file a 1040X or did you mail it?
Are you sure of what you are seeing on the amended return? In one sentence of your post you say you owe $600 and in another sentence you say it is $1600.
Going forward----we are here in the user forum to help-----before you panic and make more mistakes---ASK us what to do. We would have advised you to wait for that first return to be processed before you sent in an amended return. Now you say you did receive the first refund. We cannot tell if you really amended correctly --- but if indeed you owe the IRS for the additional income you can mail a check to the IRS or you can pay directly on the IRS web site.
Before you do any of that---please call in to customer support so someone can help sort out what you really did and if you filed an amended return the right way.
To call TurboTax customer support
https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number
Customer support is available from 5 a.m. to 5 p.m. Pacific time Monday-Saturday.
https://www.irs.gov/payments/direct-pay
https://ttlc.intuit.com/community/tax-payments/help/how-can-i-pay-my-federal-taxes/00/26212
https://ttlc.intuit.com/community/tax-payments/help/how-do-i-pay-my-irs-tax-due-with-a-check-or-mone...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
