When do I amend?

[tarabplus3]

I accidentally filed my 2017 W2 on my 2018 return. I was placed on a 45 day review starting 3/4 and just realized what I did yesterday. So I called the IRS and the lady told me I would need to amend. Do I wait until my review is over to amend or do it now? And would the IRS fix the issue internally during the 45 day review process? 

[KittyM]

If the IRS agent told you to amend your return, you should go ahead and amend your return to remove your 2017 W-2 from your 2018 filing.  Here is a link to the instructions to Amend My Return in TurboTax.  

If you did not include your 2017 W-2 in your 2017 filing, you should also amend or file your 2017 return.  Here's a link to our Past Years Products.

[tarabplus3]

I did my 2017 already and it was done correctly, so that one is fine. I'm just afraid if I amend now before my review is over then it will cause even more of a delay.

[KittyM]

Normally, we would expect an amendment to delay the IRS, but if the agent told you to amend, I would take their advice. However, it's *only* a month until the 45-day review process is over, no rush, unless you will owe the IRS some money back.