"I lost my w2 taxes for 2018"
Do you mean that you lost the actual W-2's that you received from your employers? You need those in order to file your 2018 returns. Not only do you need all of the income information, but since you are required to file 2018 by mail, you have to attach copies of the W-2's to the tax return. You will have to make every effort to get copies from the employer(s) in order to prepare your 2018 return.
W-2's come from your employer, You might need to phone, email and/or snail mail an old employer to make sure they know where to send your W-2.
Other ways to get W-2’s:
Pay Social Security $86 per W-2:
You can get a wage and income transcript from the IRS: It will not show the actual W-2, 1099’s, etc, but will show the income information the IRS received. It will not, however, show your state information. It will only show the federal information.
When you obtain your W-2's here is how to prepare and file your 2018 return:
Online preparation and e-filing for 2018 is permanently closed.
To file a return for a prior tax year
If you need to prepare a return for 2016, 2017, or 2018 you can purchase and download desktop software to do it, then print, sign, and mail the return(s)
Remember to prepare your state return as well—if you live in a state that has a state income tax.
When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s. Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS/state received the return.
Note: The desktop software you need to prepare the prior year return must be installed/downloaded to a full PC or Mac. It cannot be used on a mobile device.
If you are getting a refund, there is not a penalty for filing past the deadline. If you owe taxes, the interest/penalties will be calculated by the IRS based on how much you owe and when they receive your return and payment. The IRS will bill you for this; it will not be calculated by TurboTax.