Do you think theres going to be an issue if my only my last number is wrong on my w2 is wrong my employer fixed it on the system already .

[ToddL · Accepted solution]

Yes, there will be a problem if you attempt to file your return with an incorrect Form W-2 - even if one number is wrong. 

The return will likely get rejected if you try to e-file or file by mail. If it does go through (highly unlikely), you will almost certainly have a problem with any refund or payment due you.

If your employer has corrected this in their payroll system, they need to issue you a Corrected 2017 Form W-2. Yo u need to file your 2017 tax return with the corrected 2017 Form W-2  .