Download Form 1040 Instructions (PDF)

Federal Form 1040 Instructional Booklet updated 05/2012

Printable Federal Income Tax Form 1040 Instructions

This booklet includes instructions for filling out and filling (by mail or efile) your 1040 federal tax return. For more information, see the Federal Income Tax page.

Source: http://www.irs.gov/pub/irs-pdf/i1040gi.pdf