LIHTC with RAD and Section 8: how rental assistance changes the deal

LIHTC caps rents at 30% of an income limit, which is still too much for households far below that limit. Rental assistance closes the difference. For a developer it does more: a long-term contract turns an unpredictable restricted-rent income stream into a government-backed one that lenders will underwrite at better terms.

The rule that makes it work

Under IRC 42(g)(2)(B)(i), gross rent for the LIHTC rent test doesn’t include any payment under section 8 of the U.S. Housing Act of 1937 or any comparable rental assistance program. So:

	Amount (assumptions only)
LIHTC max gross rent, 2-bedroom at 60%	$1,500
Utility allowance	$120
Max tenant-paid rent under LIHTC	$1,380
Section 8 contract rent	$1,850
Tenant pays (about 30% of adjusted income)	$420
HAP paid by HUD or the PHA	$1,430
LIHTC gross rent test: $420 + $120 = $540 vs $1,500	Passes

The owner collects $1,850, more than the LIHTC limit, and the unit is compliant. One more rule protects assisted tenants whose income rises: 42(g)(2)(E) keeps a unit rent-restricted when the tenant’s higher payment is required by the federal assistance program, as long as the combined payment doesn’t exceed what it would have been at the income limit.

The kinds of assistance

Type	Who contracts	Typical LIHTC use	Rules
Project-based Section 8 (PBRA)	HUD Multifamily, through a HAP contract with the owner	Preservation of older assisted properties with 4% credits; renewals under MAHRA	HUD Multifamily
Project-based vouchers (PBV)	Public housing agency, under a HAP contract	New construction and rehab; also most RAD conversions	24 CFR Part 983
RAD	HUD, converting public housing (or legacy Mod Rehab and similar) to PBV or PBRA	Public housing redevelopment with 4% bonds or 9% credits	HUD RAD; Pub. L. 119-101 sec. 212
Section 811 Project Rental Assistance	HUD through state housing agencies	Integrated units for extremely low-income people with disabilities	HUD Section 811
USDA Section 521 rental assistance	USDA Rural Development	Section 515 rural preservation	7 CFR Part 3560
Tenant-based vouchers	PHAs	Any LIHTC unit; owner can’t refuse voucher holders	42(h)(6)(B)(iv)

RAD in 2026

The Rental Assistance Demonstration lets public housing agencies convert public housing operating and capital subsidy into long-term project-based Section 8 contracts, which can then secure private debt and tax credit equity. The 21st Century ROAD to Housing Act (Pub. L. 119-101 sec. 212, July 11, 2026):

• removed the “until September 30, 2029” limit, so RAD is authorized “for fiscal year 2012 and each fiscal year thereafter”;
• raised the cap on converted units from 455,000 to 555,000;
• authorized a mandatory tenant lease and management plan addendum for converted properties not otherwise covered;
• requires HUD to assess and publish annually the effects of conversions, including resident return rates and how much private investment conversions attract;
• lets HUD impose civil money penalties for material violations of RAD requirements;
• requires PHA-owned property to be used to replace, create, preserve, improve or expand affordable housing, and bars conversions for sporting, private or for-profit purposes other than those that maintain or expand housing supply, which may use an affordable housing tax credit.

RAD’s operating rules live in HUD’s current RAD notice and supplemental notices at hud.gov/rad. Check the notice in effect when you apply, because conversion rent setting, resident rights and ownership and control rules are set there.

How a RAD + 4% deal is put together

1. Commitment to Enter into a HAP (CHAP) from HUD sets the initial contract rents, usually constrained by the property’s current subsidy level unless rents are raised through other tools.
2. Financing plan submitted to HUD: 4% credits and bonds, a permanent loan sized to contract rents, PHA seller financing for the land and improvements, and often a ground lease from the PHA.
3. Ownership and control. The PHA or an affiliate typically keeps a role, through the ground lease, a GP interest or a right of first refusal, so the property stays public-serving.
4. Closing and conversion: the HAP contract is signed, the public housing declaration of trust is released and replaced by the RAD use agreement, and rehab begins.
5. Resident protections: right to return, no rescreening, and phase-in of any rent increase, per the RAD notice.

Underwriting to contract rents

Lenders size debt on contract rents rather than LIHTC rents when a long-term HAP contract covers the units, which can support a much larger loan. They look at:

• Contract term remaining and renewal rules. RAD PBV and PBRA contracts are long-term, with renewal required under the RAD statute and notice.
• Rent adjustment mechanism: annual operating cost adjustment factors, or rent comparability studies for PBRA.
• What happens at expiration: the Section 8 contract expiration data shows which properties face renewals.
• Fallback rents. If the contract weren’t renewed, would the debt still be covered at LIHTC rents? Many lenders size to a blend or require extra coverage.

HUD-insured loans can be underwritten to the contract, and FHA multifamily mortgage insurance premiums are a uniform 25 basis points for applications submitted or amended on or after October 1, 2025 (90 FR 45789). Compare options in permanent loans and forward commitments.

Compliance where both programs apply

Topic	LIHTC rule	Section 8 rule	Practical answer
Income at move-in	LIHTC limit for the unit	Section 8 eligibility (usually low-income, with targeting rules)	Test both; keep both certifications
Rent	Tenant share + UA within LIHTC max	Tenant pays the program’s total tenant payment	Use the program’s tenant payment; check it against the LIHTC max
Utility allowance	HUD-regulated buildings use the HUD allowance (26 CFR 1.42-10(b)(3))	HUD allowance	One allowance; see utility allowances
Recertification	Annual (waivable for 100% LIHTC buildings under 42(g)(8)(B))	Annual	One process, two sets of forms
Inspections	Agency inspections under 26 CFR 1.42-5	NSPIRE for HUD programs	Pub. L. 119-101 sec. 405 lets LIHTC inspections satisfy voucher inspection rules in some cases; check HUD guidance

Section 8 with LIHTC is how most deeply affordable deals pencil. The capital stack builder can model contract rents against LIHTC rents, and the Janover Capital desk can size debt to both.