How do I file a 2017 W-2 along with my 2018 W-2s?

[KatrinaB · Accepted solution]

You cannot. You must file your 2017 W-2s on a separate return than your 2018 W-2s. You can file your 2018 tax return online, but you will need to purchase TurboTax 2017 to prepare last year's return. Please click the link below for information on purchasing this software.

https://turbotax.intuit.com/personal-taxes/past-years-products/

If you have already filed your 2017 tax return and need to add the W-2 form, you will need to file a 2017 amended tax return. Please view the link below for more information about filing an amended tax return.

https://turbotax.intuit.com/tax-tips/amend-return/how-to-correct-federal-tax-returns/L67t0F7il

[Edited 01/29/2018 I 2:10 PM]

[a-palmer]

Should I file for 2017 before I do 2018 return?

[a-palmer]

So since I left out one of my 2017 W-2s I wouldn't need to amend my 2017 return?

[KatrinaB]

Yes, you should file your 2017 return before your 2018 return. If you have already filed your 2017 tax return, then you will file a 2017 amended return to add the W-2.

[KatrinaB]

I have added additional information to my answer.