I filled out my W2 and accidentally sent it in before I could add my other W2.

Q) I filled out my W2 and accidentally sent it in before I could add my other W2 from my other job.

A) If you have already submitted your W-2 to the IRS and your state, and you later realize that you made a mistake by not including another W-2, you will need to file an amended tax return.

To do this, you will need to file Form 1040-X, which is the Amended U.S. Individual Income Tax Return. This form is used to correct errors or make changes to your original tax return.

You should wait until you have received your original tax refund or paid any tax due before filing an amended return. The IRS will generally take up to 16 weeks to process amended returns.

It’s important to note that if you owe additional tax as a result of adding the missing W-2, you may be subject to interest and penalties on the unpaid tax. If you’re not sure how to proceed, you may want to consider consulting with a tax professional.