Annual Adjustment Factors

The Department of Housing and Urban Development establishes the rent adjustment factors — called Annual Adjustment Factors (AAFs) — on the basis of Consumer Price Index (CPI) data relating to changes in residential rent and utility costs.

***Microdata: Yes Level of Analysis: Local - county Variables Present: Yes File Layout: 1998 - 2005: pdf, 2006-18: doc, 2019-25: doc, xslxCodebook: No Methods: Yes -
link: https://www.huduser.gov/portal/datasets/aaf/AAFMETH1_2025.docx#:~:text=The%20AAFs%20are%20based%20on....Weights (with appropriate documentation): Yes - (included in methods link) Publications: 1998-99: No, 2000-01: Yes, 2002-25: No Aggregate Data: No