For what purpose? It is years too late to get a better refund by amending a 2018 return. TurboTax no longer supports software for 2018, so you could seek local paid tax help, or get the form from the IRS site to prepare by hand
https://www.irs.gov/forms-pubs/prior-year
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
