The verbiage you are using is confusing. What are you trying to do? It is not clear why you are talking about amending a "missing W-2".
Did you e-file already without one of your W-2's? And now you need to amend to add the W-2? Wait until the IRS has fully processed your return and then you can amend to add the W-2.
See this TurboTax support FAQ for amending a tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-a...
Or----do you mean that you do not have one of your W-2's because it got lost or was not sent to you? And now you are trying to figure out how to get a copy of it to complete your tax return?
TurboTax does not have your W-2. W-2’s come from employers. There is not a federal or national website that provides W-2’s. If your employer is partnered with TurboTax to allow the W-2 data to be imported into the software you can do that---but you need the actual W-2 so that you can enter the EIN and the amount from box 1 to import the other data from the W-2---which just saves you the little bit of keying in of the other information.
Every 2023 W-2 that you received must be reported on your 2023 tax return, even if they are for small amounts. Remember that each one of those W-2’s has your Social Security number on it, and that income was reported to the IRS by the employer. You do not want to get in trouble with the IRS for under-reporting your income or have your refund delayed by having missing income.
ALL of your W-2’s must be entered on the SAME tax return.
Go to Federal>Wages & Income to enter a W-2.
After you enter the first one, you click Add Another W-2.
W-2's come from your employer, and they have until January 31 to issue it. Some employers allow you to import the W-2 through the software, but for security reasons you still need information from the actual W-2 to import it. Some employers have payroll sites that will have your W-2. You might need to phone, drop in, email and/or snail mail an old employer to make sure they know where to send your W-2.
https://ttlc.intuit.com/questions/2561916-how-can-i-get-a-copy-of-my-w-2
https://ttlc.intuit.com/questions/1934390-how-do-i-import-my-W-2
https://ttlc.intuit.com/questions/2588751-why-can-t-i-import-my-w-2
https://ttlc.intuit.com/questions/2938482-how-do-i-take-a-picture-of-my-w-2-in-turbotax-online
And….SAVE YOUR OWN W-2! TURBOTAX DOES NOT SAVE IT FOR YOU. TurboTax will not have a copy of it in your account and will not have an image even if you snapped a photo or imported it. It is up to you to save it for your own records as stated on the back of the W-2.
You have 3 years to amend your return. Do I need to amend? You can get a wage transcript or pay for copies of your w-2s from SSA.