Not necessarily. What is wrong on your return?
If you want to make changes or add a document to a tax return that has already been submitted, you should follow these guidelines.
Select your product below and follow the instructions.
Not sure - I received the 5071C Letter, I verified my identity. It's been a month already so I'm not sure if something needs to be amended.
You just need to wait then.
Have you checked Where's My Refund?