I have my W-2 form but my wife's W-2 is not available. Can I file mine now and add my wife's later? I am filing as married jointly. Thank you.

[ErinH · Accepted solution]

No, you should wait until you have all of your tax forms to file. Trying to file early and then ending up having to amend because you used incorrect/incomplete information is counter-productive. Amendments have to be filed by mail and it will take months for the IRS to process your amended return. 

Also, the IRS has put out a notice that they will not be accepting any type of 2017 tax return until January 29, 2017 (unless they pull a few returns from tax preparation company servers for testing.)  Federal returns that have already been filed are sitting on the TurboTax servers waiting for the IRS to start accepting tax returns. There is no reason to file early without the necessary forms.