You should wait for all your forms before you file. You cannot just come back and refile with another form. Once you transmit your returns or put them in the mail you would have to amend your return to add any additional information. Amended forms must be mailed & can take 8 to 16 weeks to process.
Also, the IRS gets copies of all W-2's, if you filed without all your income information the IRS could send you a letter asking for the missing W-2, that can delay the processing of your return. Please wait!
