Here are steps for adding your 2017 AGI to your 2018 tax return:

https://ttlc.intuit.com/replies/4168567

I need to add my agi to my takes so I can send them off I haven filed yet they didn't receive it in the mail

@Itiezza25 What tax year are you trying to file?  If you are trying to file 2018 or an earlier year, the AGI does not matter.  You only needed that to e-file and you cannot e-file any tax year except 2019--sometime in January.  Any other tax year has to be printed, signed and mailed.  You do not need your AGI to mail a 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/state received the return.

Federal and state returns must be mailed in separate envelopes to different addresses.

For what year?  It's to early to file 2019.  And it's too late to efile 2018 and prior.  Efiling closed back on Oct. 15.  So you have to print and mail 2018 now.  You don't need the AGI to print and mail. 

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.

im not mailing it I tried that they never got none of the three I did so im trying to add my agi number so I can send it 

 I file taxes this year and they never got them so now I got my agi number and now im trying to add it so I can efile 

Sorry you can NOT send it again.  You HAVE to print and mail it!  Why didn't they get it the first time?