4868 Application for Extension of Time to
file Individual Income Tax Return
http://www.irs.gov/pub/irs-pdf/f4868.pdf
2688 Application for Additional Extension of Time to file Individual Income Tax Return
Click here: http://www.irs.gov/pub/irs-pdf/f2688.pdf
8453 US Individual Income Tax Declaration
for an IRS e-file Return
Click here: http://www.irs.gov/pub/irs-pdf/f8453.pdf
Publication 523 Selling your home
http://www.irs.gov/pub/irs-pdf/p523.pdf