25 U.S.C. § 4101 · P.L. 104-330 · 24 CFR Part 1000

NAHASDA & Indian Housing Block Grant.

The federal block grant framework for affordable housing in Indian Country — IHBG formula allocations, Title VI loan guarantees, the Section 184 mortgage guarantee, and how tribal housing entities layer federal programs.

$1.11B
FY 2025 IHBG appropriation
1996
NAHASDA enacted
575
federally recognized tribes
5x
Title VI guarantee multiplier
Updated May 11, 2026 · Post-OBBBA landscape

What NAHASDA does

The Native American Housing Assistance and Self-Determination Act of 1996 consolidated several pre-existing HUD Indian housing programs into a single block grant: the Indian Housing Block Grant (IHBG). NAHASDA gave federally recognized Indian tribes and Tribally Designated Housing Entities (TDHEs) the authority to design and administer their own affordable housing programs through Indian Housing Plans (IHPs), with substantial deference to tribal self-determination.

NAHASDA replaced the prior project-based federal Indian housing system — which had operated through HUD Indian Housing Authorities under the U.S. Housing Act of 1937 — with a self-determined block grant model paralleling the structure of CDBG and HOME. The annual IHBG appropriation has been approximately $825 million to $1.1 billion in recent years; FY 2025 IHBG funding was approximately $1.11 billion, enacted under the Full-Year Continuing Appropriations and Extensions Act, 2025. NAHASDA has not been reauthorized since the 2008 reauthorization (which ran through FY 2013) — the program has operated on annual appropriations without a statutory reauthorization for over a decade.

Indian Housing Block Grant

IHBG funds are allocated annually by HUD's Office of Native American Programs (ONAP) to eligible tribes and TDHEs using a formula prescribed at 24 CFR § 1000.301. The formula weighs Formula Current Assisted Stock (FCAS — pre-NAHASDA project-based units the tribe inherited) and Need (a multi-component measure of low-income housing need on the tribe's formula area). Tribes receive funds directly and administer them under an Indian Housing Plan submitted to HUD annually.

Eligible activities

  • Indian Housing Assistance. Modernization, operation, and management of existing Indian housing stock — including FCAS units carrying over from the pre-NAHASDA program.
  • Development. New construction, acquisition, or rehabilitation of affordable rental or homeownership units, including under the Mutual Help Homeownership Opportunity Program.
  • Housing services. Rental assistance, housing counseling, self-sufficiency programs, supportive services.
  • Crime prevention and safety. Limited eligibility for community policing and security activities.
  • Model activities. Innovative housing approaches approved by HUD.

Title VI Loan Guarantees

Title VI of NAHASDA authorizes HUD to guarantee loans to tribes and TDHEs for affordable housing activities. The loan must be repayable from current and future IHBG funds. The statute sets the maximum aggregate guarantee at five times the total IHBG grant amount; in practice HUD describes the operational limit as up to five times the Need portion of the borrower's annual IHBG allocation (because the FCAS portion is typically already committed to operations and modernization of existing stock). Title VI is used to leverage IHBG into multi-year development pipelines that would otherwise exceed annual cash flow — a critical tool given the multi-year capital costs of new construction relative to annual IHBG sizing for smaller tribes.

Indian Community Development Block Grant (ICDBG)

ICDBG is a separate, smaller HUD program providing competitive grants to tribes for community and economic development activities including housing rehabilitation, public facilities, and economic development. ICDBG is authorized under the Housing and Community Development Act of 1974 and administered by ONAP. Annual appropriation is approximately $75 million.

Labor standards — tribal prevailing wage

NAHASDA-assisted construction is subject to labor standards under 24 CFR § 1000.16. Each tribe or TDHE may adopt and enforce tribally determined prevailing wage rates in lieu of federal Davis-Bacon rates when the tribe has a published tribal wage scale — a deliberate self-determination feature distinguishing NAHASDA from other HUD direct-financial-assistance programs. Where no tribal wage scale applies, federal Davis-Bacon governs the construction. Section 184 mortgage-guaranteed projects and ICDBG-funded construction follow standard HUD labor standards, not the tribal-rate alternative. State and local prevailing-wage laws may also apply for off-reservation activity.

LIHTC pairing

Tribes and Native American developers can pair IHBG funds with LIHTC, USDA Section 515, FHA insurance, and other federal programs. Three structural points to flag: (1) many state HFAs maintain a tribal set-aside in their QAPs — consult the relevant state QAP for percentage and scoring; (2) land status (trust land, allotted land, fee land) drives the feasibility of conventional financing — trust land cannot be mortgaged in the conventional sense, so the Section 184 Indian Home Loan Guarantee Program provides federal guarantees enabling mortgages on trust land; (3) NAHASDA-assisted units may have separate income and rent requirements from LIHTC — compliance must satisfy both regimes simultaneously, with the deeper restriction governing.

For full capital-stack mechanics including tribal-specific structuring considerations, see the LIHTC Deal Structures Guide.

Post-OBBBA implications

OBBBA did not amend NAHASDA. Indirect implications include the post-OBBBA Rural Opportunity Zone framework, which may include Native American reservation areas designated as rural OZs, potentially creating new equity capital channels for tribal housing development that did not exist pre-OBBBA. Practitioners should consult the latest IRS guidance on Rural OZ designations.

Sources

  • Native American Housing Assistance and Self-Determination Act of 1996, P.L. 104-330
  • 25 U.S.C. §§ 4101-4243 (NAHASDA codified)
  • 24 CFR Part 1000 (IHBG implementing regulations)
  • 24 CFR Part 1005 (Section 184 Indian Home Loan Guarantee)
  • 42 U.S.C. § 5306 (ICDBG authorization)
  • P.L. 119-21, One Big Beautiful Bill Act, enacted July 4, 2025

Disclaimer

NAHASDA programs are administered by federally recognized Indian tribes and TDHEs under each tribe's Indian Housing Plan. Eligibility, formula amounts, and program rules vary by recipient. Practitioners should consult HUD's Office of Native American Programs and the relevant tribe or TDHE before structuring a transaction. This is educational content and is not legal, tax, or financial advice.