Yes, before filing an amended return, make sure the IRS has already processed the tax return you need to amend. If you've already received your tax refund, then you know the IRS has already processed your return.
You will also have to wait because the IRS normally does not release Form 1040X, which is the form used to do amended returns, until the end of February.
If you would like more information about amended returns, see the article below:
