HUD published its FY 2013 income limits for multifamily housing and are effective immediately. The FY 2013 income limits may be found here: http://www.huduser.org/portal/datasets/il/il13/index.html
The new income limits must be used for all new move-in transactions starting with move-ins effective December 4, 2012. Income limits do not apply to existing residents (annual and interim certifications) since income eligibility is determined at move-in.
Please note that, due to the Housing and Economic Recovery Act of 2008 (Public Law 110-289), the data presented in this system may not be applicable to projects financed with Section 42 Low Income Housing Tax Credits (LIHTC) or section 142 tax exempt private equity bonds. These projects should use the Multifamily Tax Subsidy Project Income Limits available at Multifamily Tax Subsidy Project Income Limits, located here: http://www.huduser.org/portal/datasets/mtsp.html