There is no more 1040A. 2017 was the last year. Now everyone uses the 1040 and new schedules.
Here is the IRS 2018 Form 1040https://www.irs.gov/pub/irs-prior/f1040--2018.pdf
And instructions https://www.irs.gov/pub/irs-prior/i1040gi--2018.pdf
2018 Tax and EIC Tables https://www.irs.gov/pub/irs-prior/i1040tt--2018.pdf
IRS 2018 Schedules 1 thru 6 (only if needed)https://www.irs.gov/pub/irs-prior/f1040s1--2018.pdfhttps://www.irs.gov/pub/irs-prior/f1040s2--2018.pdfhttps://www.irs.gov/pub/irs-prior/f1040s3--2018.pdfhttps://www.irs.gov/pub/irs-prior/f1040s4--2018.pdfhttps://www.irs.gov/pub/irs-prior/f1040s5--2018.pdfhttps://www.irs.gov/pub/irs-prior/f1040s6--2018.pdf
