Turbotax allowed me to begin and nearly complete an amendment although the IRS suggests waiting for any refund before doing so. I had not received a refund and luckily asked the IRS website about when/how to file an amendment just before completion online due to the fact that there were taxes the refund amount due to pay while having not yet received the refund to pay back with. I'd assumed TTax would see the refund not received yet and thus only ask the corrected amount due while notifying the IRS of the error before sending out any refund. It did not/does not distinguish.
This would be a helpful question to ask a user when they attempt to amend a return so they do not make a mistake or make the process more difficult.
"Did you/Have you received your refund? The IRS suggests waiting for any refund before amending your return as any refund error will be due to pay back immediately once we complete the amendment for filing."
