You will need to print it again, sign and date it ink, and mail it.
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 certified mail so you will know the IRS/state received the return.
Federal and state returns must be in separate envelopes and they are mailed to different addresses. Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.
Yes. I you filed your 2023 by mail but forgot to sign it, the IRS will return it back to you (meaning, nothing has been processed in their system). You will need to print again, make sure you sign it and mail it back to them. Make sure you include all forms and schedules with it.
Thank you so much for your answer. My home address has changed since then, which is the reason why I lost the document. Should I used the old address for the resent tax return or should I used my current address?
@NgocDuong Use the address you want the IRS to use if they need to mail you a letter or a check.