12 U.S.C. § 4501 · FHFA conservatorship · Annual caps

GSE Multifamily Finance.

Fannie Mae DUS and Freddie Mac Optigo — the largest sources of permanent debt to the U.S. multifamily rental market overall (the majority of GSE volume is conventional/market-rate), with mandated mission-driven affordable channels (TAH, MTEB, TEL) that compete with FHA on 4% LIHTC + tax-exempt bond deals. Both GSEs operate under FHFA conservatorship and annual production caps.

$73B/yr
FHFA cap per enterprise (2025)
50%+
must be mission-driven affordable
MTEB/TEL
tax-exempt executions
2008
in conservatorship since
Updated May 11, 2026 · Post-OBBBA landscape

What GSE Multifamily does

Fannie Mae and Freddie Mac — the two government-sponsored enterprises (GSEs) — are the largest sources of permanent debt to the U.S. multifamily rental market. Together they finance more than $150 billion of multifamily mortgages per year through their delegated lender networks. Operating in conservatorship under the Federal Housing Finance Agency (FHFA) since September 2008, the GSEs are constrained by FHFA-set annual production caps and statutory mission requirements that direct a majority of their activity toward affordable rental housing.

For practitioners, the GSEs matter most as the providers of the permanent debt that takes out construction loans on 4% LIHTC + tax-exempt bond transactions. Fannie Mae's MTEB (Multifamily Tax-Exempt Bond) and TEL (Tax-Exempt Loan) executions, and Freddie Mac's TEL and tax-exempt bond credit enhancement, are the principal competitors to FHA insurance on 4% LIHTC deals.

The FHFA Multifamily Caps

FHFA sets an annual production cap for each enterprise's multifamily business. The 2025 cap was $73 billion per enterprise ($146 billion combined); the 2026 cap was raised to $88 billion per enterprise. At least 50% of each enterprise's multifamily volume must be "mission-driven affordable" — broadly defined to include LIHTC properties, properties with HUD or USDA rental assistance, properties below 60% AMI, and properties in rural or underserved areas. Workforce-housing volume above the cap is exempt under FHFA's current scorecard, which is why aggregate GSE multifamily production typically exceeds the headline cap number.

Fannie Mae DUS

The Delegated Underwriting and Servicing (DUS) program is Fannie Mae's principal multifamily channel. DUS lenders — approximately 25 firms nationally — underwrite, originate, and service loans under standardized Fannie Mae programs, sharing first-loss risk with the enterprise. Key DUS executions relevant to affordable practitioners:

  • DUS Affordable. Loans on properties with LIHTC, Section 8, or other affordability restrictions. Pricing includes a mission-driven incentive that often translates to 10-25 bps below market-rate DUS.
  • MTEB (Multifamily Tax-Exempt Bond). Fannie Mae credit-enhances tax-exempt bonds issued by a state or local issuer. The bonds are then placed with Fannie Mae or sold to investors with Fannie's credit support. The 4% LIHTC eligibility flows from the bond issuance under IRC § 42(h)(4). MTEB is a primary alternative to direct FHA insurance on the bonds.
  • TEL (Tax-Exempt Loan). A privately placed tax-exempt loan structured as a direct purchase by Fannie Mae or a Fannie Mae-eligible investor, eliminating the need for a public bond offering. TELs are typically cheaper and faster than MTEBs and have become the dominant Fannie execution on 4% LIHTC transactions since approximately 2018.
  • Forward Commitments. Fannie commits today to fund a permanent loan at construction completion, locking long-term rate during the construction period.

Freddie Mac Optigo

Freddie Mac multifamily operates through the Optigo platform, a network of Optigo Seller/Servicers that originate and service multifamily loans. The structure differs from Fannie DUS — Freddie typically retains the loan rather than sharing first-loss with the lender — but the practitioner-facing products parallel Fannie's. Principal Freddie affordable executions:

  • Targeted Affordable Housing (TAH). The umbrella label for Freddie's affordable products, including loans on LIHTC, Section 8, and RAD properties.
  • TAH Tax-Exempt Loan. The Freddie equivalent of Fannie's TEL — direct purchase of a tax-exempt loan with no public bond offering. Has dominated Freddie's affordable volume since the mid-2010s.
  • TAH Bond Credit Enhancement. The Freddie equivalent of MTEB — credit support on tax-exempt bonds issued by a public issuer.
  • Conventional Small. Freddie retired the Small Balance Loan (SBL) brand and replaced it with the Optigo Conventional Small product ($2M-$10M loan amount, effective April 15, 2026) — a streamlined execution for smaller properties, heavily used by small affordable developers and naturally-affordable workforce housing owners.
  • Forward Commitments and 4% Pricing Initiative. A 2019-launched program that locks favorable pricing for 4% LIHTC transactions in early development.

TEB/TEL versus FHA — the practitioner choice

On a 4% LIHTC + tax-exempt bond deal, the financing team usually faces a choice between FHA insurance on the bonds (or a tax-exempt loan FHA-insured) and a GSE TEB/TEL execution. The choice is rarely close once a sponsor evaluates the trade-offs:

  • FHA. Lower interest rate (typically 50-100 bps below GSE), 40-year fully amortizing term, non-recourse, but Davis-Bacon prevailing wage on construction, longer processing timeline (8-12 months firm commitment to closing), and stricter rehab standards.
  • GSE TEL. Higher interest rate, 15-35 year amortization (rarely 40), non-recourse with standard carve-outs, no Davis-Bacon, faster processing (3-5 months from rate lock to closing), more underwriting flexibility on rehab and post-stabilization metrics.

The trade is usually framed as rate versus speed and flexibility. Davis-Bacon labor costs alone can erase the FHA rate advantage on smaller new-construction deals, which has driven a shift toward GSE TEL executions on smaller 4% transactions since approximately 2018.

Conservatorship status

Fannie Mae and Freddie Mac have been in FHFA conservatorship since September 6, 2008. The conservatorship constrains both enterprises' business decisions through FHFA's annual conservatorship scorecard and through the Senior Preferred Stock Purchase Agreements with Treasury. While there has been ongoing policy debate about ending the conservatorship — the Trump administration explored release in 2019-2020 and again in 2025 — no statutory or administrative action has ended it as of May 2026.

Labor standards — Davis-Bacon

GSE multifamily loans are private secondary-market purchases (Fannie Mae or Freddie Mac buys the loan from a delegated lender), not direct federal financial assistance. GSE financing on its own does NOT trigger federal Davis-Bacon prevailing wage requirements. This is one of the principal practitioner advantages of GSE TEL/TAH executions over FHA 221(d)(4) insurance on new-construction deals, where FHA insurance does trigger Davis-Bacon via Section 212 of the National Housing Act. Deals layered with HOME, CDBG, HUD insurance, or other direct federal grants/loans carry Davis-Bacon through those layered programs, not through the GSE financing. State and local prevailing-wage laws apply independently.

Post-OBBBA implications

OBBBA did not directly amend the GSE charters. The post-OBBBA 25% PAB financed-by test (reduced from 50% for properties placed in service after December 31, 2025, provided ≥5% of aggregate basis is from bonds issued after that date) has the indirect effect of increasing the supply of 4% LIHTC transactions that can be financed with lower volume-cap allocations — which expands the addressable market for GSE TEL and TAH-TEL executions. Practitioners should expect GSE affordable volume to continue growing through 2027 as state HFAs work through the larger pipeline the lower threshold enables.

LIHTC pairing

On 4% LIHTC + tax-exempt bond deals, GSE TEL and MTEB executions compete head-to-head with FHA 221(d)(4)/223(f) insurance for the permanent debt slot. The trade is typically rate vs. speed and flexibility — FHA delivers a lower rate but with Davis-Bacon on construction and a 8–12 month underwriting timeline; GSE delivers a higher rate but no Davis-Bacon, faster processing (3–5 months), and more rehab flexibility.

For full deal-structure mechanics — FHA vs GSE economic comparison, MTEB vs TEL choice, forward-commitment pricing, and TAH stack assembly — see the dedicated guide: LIHTC Deal Structures Guide.

Sources

  • Federal Housing Enterprises Financial Safety and Soundness Act, 12 U.S.C. § 4501 et seq.
  • Housing and Economic Recovery Act of 2008, P.L. 110-289 (creating FHFA and conservatorship authority)
  • FHFA 2025 Multifamily Cap Memorandum (November 2024)
  • FHFA Conservatorship Scorecards, annual
  • Fannie Mae Multifamily Selling and Servicing Guide
  • Freddie Mac Multifamily Seller/Servicer Guide
  • P.L. 119-21, One Big Beautiful Bill Act, enacted July 4, 2025

Disclaimer

GSE multifamily products and pricing change frequently. Specific terms, caps, and mission-driven set-asides are governed by FHFA's annual conservatorship scorecard and each enterprise's product guides. Practitioners should consult an approved DUS or Optigo lender for current pricing and underwriting parameters. This page is educational content and is not financial, tax, or legal advice.