@Ed McCauley1959 - are you simply reviewing your previously submitted 2018 tax return or just now preparing your 2018 tax return,
if preparing it, note that the window to obtain any refund from 2018 closed on April, 15, 2022, meaning the IRS will not refund anything upon submission. However, if you owe tax based on your 2018 tax return, you still owe it (plus penalties and interest).
