You wrote: "First time filling need a I’d number"
If you're not referring to the less-common 6-digit IP PIN that the IRS provides for victims of ID theft as discussed above, please define what you mean by "ID number." We're not sure what you mean.
Are you by any chance referring to the 5-digit PIN or 2018 AGI that people use to verify their return during efiling? If so, then since you didn't file a 2018 return, you won't have any PIN or AGI to enter. If you tell TurboTax (when it asks) that you didn't file a return in 2018, it should enter an AGI of 0 for you in the background.
