The Low-Income Housing Tax Credit (LIHTC) is the most important resource for creating affordable housing in the United States today. The LIHTC database, created by HUD and available to the public since 1997, contains information on 48,672 projects and 3.23 million housing units placed in service since 1987. Low-Income Housing Tax Credit Qualified Census Tracts must have 50 percent of households with incomes below 60 percent of the Area Median Gross Income (AMGI) or have a poverty rate of 25 percent or more. Difficult Development Areas (DDA) are areas with high land, construction and utility costs relative to the area median income and are based on Fair Market Rents, income limits, the 2010 census counts, and 5-year American Community Survey (ACS) data.

Difficult Development Areas (DDA) for the Low Income Housing Tax Credit program are designated by U.S. Department of Housing and Urban Development (HUD) and defined in statute as areas with high construction, land, and utility costs relative to its Area Median Gross Income (AMGI). DDAs in metropolitan areas are designated along Census ZIP Code Tabulation Area (ZCTA) boundaries. DDAs in non-metropolitan areas are designated along county boundaries. DDAs may not contain more than 20% of the aggregate population of metropolitan and non-metropolitan areas, which are designated separately. To learn more about Difficult Development Areas (DDA) visit: https://www.huduser.gov/portal/datasets/qct.html, for questions about the spatial attribution of this dataset, please reach out to us at GISHelpdesk@hud.gov. Data Dictionary: DD_Difficult Development Areas Date of Coverage: 2024-2025Last Updated: 01-2025

The Low Income Housing Tax Credit (LIHTC) is a tax incentive intended to increase the availability of low income housing. Section 42 provides an income tax credit to owners of newly constructed or substantially rehabilitated low-income rental housing projects. The dollar amount of the LIHTC available for allocation by each state (the "credit ceiling") is limited by population. Each state is allocated credit based on $1.25 per resident. States may carry forward unused or returned credit derived from the credit ceiling for one year; if not used by then, credit goes into a national pool to be allocated to states as additional credit. State and local housing agencies allocate the state's credit ceiling among low-income housing buildings whose owners have applied for the credit. The LIHTC reduces income tax liability. It is taken annually for a term of ten years and is intended to yield a present value of either (1) 70 percent of the "qualified basis" for new construction or rehabilitation that are not federally subsidized (i.e., financed with tax-exempt bonds or below-market federal loans), or (2) 30 percent of the qualified basis for the cost of acquiring certain existing projects or projects that are federally subsidized. The actual credit rates are adjusted monthly for projects placed in service after 1987. The qualified basis represents the product of the "applicable fraction" of the building and the "eligible basis" of the building. The applicable fraction is based on the number of low income units in the building as a percentage of the total number of units, or based on the floor space of low income units as a percentage of the total floor space of residential units in the building. The eligible basis is the adjusted basis attributable to acquisition, rehabilitation, or new construction costs (depending on the type of LIHTC involved). In the case of buildings located in designated Qualified Census Tracts or designated Difficult Development Areas (DDA), eligible basis can be increased up to 130 percent of what it would otherwise be. This means that the available credit also can be increased by up to 30 percent. For example, if the 70 percent credit is available, it effectively could be increased up to 91 percent. There is a limit on the number of Qualified Census Tracts in any Metropolitan Statistical Area (MSA) or Primary Metropolitan Statistical Area (PMSA) that may be designated to receive an increase in eligible basis: all of the designated census tracts within a given MSA/PMSA may not together contain more than 20 percent of the total population of the MSA/PMSA. For purposes of HUD designations of Qualified Census Tracts, all non-metropolitan areas in a state are treated as if they constituted a single metropolitan area.To learn more, go to: https://www.huduser.org/portal/datasets/qct.html

community-development-programs dda difficult-development-areas hud hud-official-content lihtc low-income-housing-tax-credit polygon qct qualified-census-tracts u-s-department-of-housing-and-urban-development

This service contains a list of census tracts that qualify for the American Rescue Plan Act (ARPA) . The list was provided to EGIS by BMS. The data used to produce this service can be found at Qualified Census Tracts and Difficult Development Areas | HUD USER.Low-Income Housing Tax Credit Qualified Census Tracts must have 50 percent of households with incomes below 60 percent of the Area Median Gross Income (AMGI) or have a poverty rate of 25 percent or more. Difficult Development Areas (DDA) are areas with high land, construction and utility costs relative to the area median income and are based on Fair Market Rents, income limits, the 2010 census counts, and 5-year American Community Survey (ACS) data. Maps of Qualified Census Tracts and Difficult Development Areas are available at: huduser.gov/sadda/sadda_qct.html.Qualified Census Tracts - Generate QCT Tables for Individual Areas (Also Includes DDA Information)This data was created by the Department of Housing and Urban Development in 2022. This data is updated on a yearly basis.