You cannot e-file your 2018 tax return now. You missed the deadline for e-filing which was October 15, 2019, Now you have to print, sign and mail a 2018 tax return.
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 UPS or certified mail so you will know the IRS and/or your state received the return.
Remember that federal and state returns go in separate envelopes and get mailed to separate addresses.
You bought the 2018 program? You have to download it and install it on your computer. It is too late to efile 2018 and earlier.
You have to print and mail prior year returns. 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 UPS or certified mail so you will know the IRS received the return. Don’t forget state.
How to file a prior year