Federal Student Aid has announced we should plan for the IRS Data Retrieval Tool (IRS DRT) to be offline until the start of the next FAFSA season.
FAFSA and IRS Data Retrieval Tutorials
If you are filling out the FAFSA you can manually input your tax information using a copy of your 2015 income tax return. If a copy is not available, you can get one from the tax software you used or request one from your tax preparer. You can also request a tax return transcript from the IRS: www.irs.gov/transcript.
2015 Tax Information for the 2016-17 and 2017-18 FAFSA (click on picture to zoom in):
How to use the IRS Data Retrieval Tool
USPS Address Help
-FAFSA and IRS Data Retrieval Tutorials