After you file


@gcirigani wrote:

I need paper copies of my 2018 tax returns.

I am buying a house


Did you prepare the 2018 return online?  If so, log in and at the Tax Home go to the section "Your Tax Returns & Documents."    Expand that section, if necessary, and choose tax year 2018.   Then there should be a link "Download/print the PDF."

 

If you used desktop software (CD/download) to prepare the 2018 return, then it will not be in an online account.