HUD issued an updated Section 8 Fact Sheet in September 2010, but HUD noted in a TRACS conference call recently that many owners are still using the Fact Sheet from July 2007.
There are differences in the two fact sheets that affect the rent calculation for Section 8 properties. The 2007 fact sheet excludes from income all scholarships funded under Title IV of the Higher Education Act of 1965. The revised fact sheet reflects the change in HUD rules that now requires counting any amount of educational assistance in excess of tuition as income.
If you have not done so already, get rid of the 2007 fact sheet and replace it with the 2010 edition. The 2010 form may be downloaded from http://www.hud.gov/offices/fheo/promotingfh/11-Fact-Sheet-S-8-English.pdf.