Federal Housing Finance Agency — GSE Oversight & Housing Finance

The Federal Housing Finance Agency is the regulator and conservator of Fannie Mae and Freddie Mac — two government-sponsored enterprises (GSEs) that together guarantee approximately $7 trillion in mortgage-backed securities, forming the financial backbone of the U.S. mortgage market. Created by the Housing and Economic Recovery Act of 2008 (HERA, 12 U.S.C. § 4511 et seq.) by merging the Office of Federal Housing Enterprise Oversight (OFHEO) and the Federal Housing Finance Board, FHFA was immediately tested: within weeks of its creation, it placed both Fannie Mae and Freddie Mac into federal conservatorship — a legal status they have occupied ever since, making them the longest-running government conservatorships in U.S. history and the unresolved centerpiece of housing finance reform debates. FHFA also regulates the 11 Federal Home Loan Banks (FHLBs), a cooperative network of regional banks that provide liquidity to mortgage lenders and which drew attention in 2023 when they provided emergency advances to failing banks. FHFA's director is Senate-confirmed and was the subject of Collins v. Yellen (2021), in which the Supreme Court held that the Director's for-cause removal protection was unconstitutional — making FHFA an at-will agency similar to the post-Seila Law CFPB.

Legal Authority

• 12 U.S.C. §§ 4501–4641 — Federal Housing Enterprises Financial Safety and Soundness Act, as amended by HERA 2008: creates FHFA as the safety and soundness regulator for Fannie Mae, Freddie Mac, and the Federal Home Loan Banks; authorizes FHFA to place GSEs into conservatorship or receivership
• 12 U.S.C. § 4617 — Conservatorship and receivership authority: authorizes FHFA to place a regulated entity into conservatorship (retaining the entity as a going concern) or receivership (winding it down); the basis for the 2008 Fannie/Freddie conservatorship
• Collins v. Yellen, 594 U.S. 220 (2021) — FHFA Director's for-cause removal protection held unconstitutional; the Director is now an at-will appointee removable by the President without cause, consistent with Seila Law v. CFPB

Key Mechanics

FHFA has two distinct roles. As safety and soundness regulator, it oversees Fannie Mae, Freddie Mac, and the 11 Federal Home Loan Banks — setting capital requirements, mission requirements, examination standards, and limits on their activities. As conservator of Fannie Mae and Freddie Mac (since September 2008), FHFA exercises the full powers of the GSE boards of directors and management, operating the enterprises as going concerns under federal control while their future structure — private recapitalization vs. continued government operation vs. wind-down — remains unresolved. The conservatorship's Senior Preferred Stock Purchase Agreements (PSPAs) with Treasury give Treasury priority on GSE earnings; in 2019 these were amended to allow the GSEs to retain capital, beginning a capital restoration process that could eventually support a return to private status. The Federal Home Loan Banks, which provide liquidity to over 6,000 member financial institutions through collateralized advances, gained new attention in the 2023 banking crisis when SVB and Signature Bank had drawn $30+ billion in FHLB advances in their final months.

Organization & Structure

FHFA is a single-director independent agency whose director is now removable at will after Collins v. Yellen held unconstitutional the statutory language limiting removal to "for cause." The agency is organized into divisions covering enterprise regulation (Fannie/Freddie examination and oversight), FHLB regulation, housing mission and goals, and conservatorship operations. FHFA's small staff relative to its regulated entities' size — Fannie and Freddie together have over 14,000 employees — means FHFA relies heavily on embedded examination teams and regular engagement with GSE management.

Key Functions & Authorities

Conservatorship of Fannie Mae and Freddie Mac — FHFA has been the conservator of Fannie Mae and Freddie Mac since September 7, 2008, when both were placed into conservatorship with Treasury providing unlimited backstop support in exchange for senior preferred stock. As conservator, FHFA exercises the powers of the boards of directors of both enterprises, sets their strategic direction, and oversees their operations. Under the Senior Preferred Stock Purchase Agreements (PSPAs) with Treasury, the GSEs' capital is subject to Treasury-FHFA agreement; the terms of those agreements — including profit sweeps that sent all GSE earnings to Treasury from 2012 to 2019, drawing legal challenges from shareholders — have been modified multiple times. The path to GSE conservatorship exit (what form Fannie and Freddie would take if released from conservatorship, and whether they would retain implicit government backing) is one of the longest-unresolved questions in U.S. financial policy.

GSE mission and affordable housing — FHFA sets the housing finance mission priorities for the GSEs through their Duty to Serve requirements, housing goals (targets for GSE mortgage purchases in underserved markets and for affordable and very low-income housing), and affordable housing program allocations from the Federal Home Loan Banks. The GSEs' housing goals — requiring a percentage of their mortgage purchases to serve low- and moderate-income borrowers — are a primary policy lever for expanding homeownership access. FHFA can sanction GSEs that miss their goals and can revise goal targets through rulemaking.

Conforming loan limits — FHFA annually sets the conforming loan limit (CLL) — the maximum mortgage balance that Fannie Mae and Freddie Mac can purchase or guarantee. For 2026, the baseline CLL is $832,750 (up from $806,500 in 2025), with higher limits in high-cost areas (up to $1,249,125 in the highest-cost markets). The CLL effectively defines the "conforming" mortgage market where GSE-backed financing is available at favorable rates; loans above the CLL are "jumbo" loans that do not receive GSE backing and carry higher rates. Annual CLL adjustments — now formula-based on FHFA's House Price Index — determine the boundary between the conforming and jumbo mortgage markets.

Federal Home Loan Bank oversight — FHFA regulates the 11 Federal Home Loan Banks, cooperative financial institutions owned by their member banks, credit unions, insurance companies, and community development financial institutions. The FHLBs advance funds to their members using their callable capital stock and AAA-rated bond issuances; members pledge collateral (primarily mortgages) to borrow from the FHLB for liquidity purposes. FHLB advances to failing banks in 2023 (Silicon Valley Bank and Signature Bank borrowed heavily from FHLBs in the days before failure) prompted FHFA to review FHLB governance and mission alignment, resulting in a 2023 FHFA report calling for reform of FHLB lending practices and mission focus.

House Price Index (HPI) — FHFA publishes the FHFA House Price Index (HPI), based on repeat-sales data from conforming mortgage transactions, which is the statutory basis for annual CLL adjustments and one of the primary government measures of residential real estate price trends. The FHFA HPI covers all 50 states, metropolitan areas, and census divisions at monthly and quarterly frequencies.

How It Affects You

If you are a citizen or voter: The conforming loan limit directly affects whether you can access a Fannie/Freddie-backed mortgage at competitive rates or must use more expensive jumbo financing. GSE mortgage guarantee fees ("g-fees") are embedded in mortgage rates and affect the cost of homeownership for millions of Americans. The GSEs' conservatorship status and housing goals shape which mortgage products are available and at what price across different income levels and geographies. FHFA's housing finance reform decisions — whether and how to release Fannie and Freddie from conservatorship — will affect mortgage market structure and rates for decades.

If you are a business or regulated entity: Mortgage lenders (banks, credit unions, and nonbank originators) must sell conforming loans to Fannie and Freddie under the GSEs' seller/servicer guide requirements — detailed standards governing underwriting, appraisal, servicing, and representations and warranties. GSE seller/servicer approvals and the threat of repurchase demands (GSE buyback requests for loans that violated reps and warranties) are major risk management issues for originators. FHLB members (approximately 6,500 institutions) use FHLB advances for liquidity management; FHFA's collateral and capital requirements for FHLB borrowing directly affect their cost of funds.

If you work at a federal agency: FHFA coordinates with Treasury (which holds the Senior Preferred Stock in the GSEs and has contractual rights under the PSPAs); the Federal Reserve (on systemic risk and FHLB stability); HUD (on GSE housing mission and affordable housing goals); and the CFPB (on mortgage origination and servicing standards that affect GSE-eligible loans). FHFA's conforming loan limit decisions affect HUD/FHA loan limits (which generally mirror GSE limits) and the broader federal housing finance architecture.

If you are a journalist, researcher, or policy analyst: FHFA publishes the monthly and quarterly House Price Index (fhfa.gov/data/hpi), which is the primary government measure of national home price trends and is used for CLL adjustment. FHFA's supervisory examination results for the GSEs are not fully public, but annual reports on housing goals performance, affordable housing allocations, and stress test results provide public accountability information. The FHFA Inspector General publishes reports on conservatorship management and FHLB governance. GSE annual reports (10-Ks filed with the SEC) provide detailed financial and operational information.

Implementing Regulations

FHFA's regulatory framework for Fannie Mae, Freddie Mac, and the Federal Home Loan Banks is codified primarily in 12 CFR Chapter XII (Parts 1200–1299):

• 12 CFR Part 1221 — Margin and Capital Requirements for Covered Swap Entities: implements the Dodd-Frank Act's Title VII margin and capital requirements for covered swap entities — Fannie Mae and Freddie Mac acting as swap dealers or major swap participants. Because the GSEs use derivatives (interest rate swaps, credit default swaps) extensively to hedge mortgage portfolio risk, they are regulated by FHFA (not the CFTC or Federal Reserve) for their swap margin and capital requirements. Key provisions:

  • § 1221.3 — Initial margin requirements: covered swap entities must collect and post initial margin (a performance bond calculated under FHFA-approved models) for non-cleared swap transactions with covered counterparties; initial margin must be held by a third-party custodian, not held directly by either party; minimum transfer amounts and collection thresholds limit the administrative burden for small transactions
  • § 1221.4 — Variation margin: covered swap entities must exchange variation margin (marking-to-market daily cash settlements reflecting changes in swap value) for all non-cleared swaps with financial end users; variation margin must be in the form of cash or highly liquid securities
  • § 1221.10 — Documentation: covered swap entities must execute Credit Support Annexes (CSAs) or other trading documentation with each covered counterparty specifying collateral terms before transacting non-cleared swaps; undocumented swaps are prohibited
  • § 1221.12 — Capital: covered swap entities must comply with FHFA-specified capital requirements applicable to their swap activities, consistent with 12 U.S.C. § 4611

• 12 CFR Part 1227 — Suspended Counterparty Program: the FHFA's debarment mechanism for the regulated entities — prohibiting Fannie Mae, Freddie Mac, and the FHLBs from transacting business with persons who have committed fraud, misrepresentation, or other misconduct in connection with mortgage-related activities. FHFA modeled the program on the federal suspension and debarment system but tailored it to the mortgage industry context:

  • § 1227.3 — Suspension orders: FHFA's suspending official may issue a final suspension order to all regulated entities directing them to cease any covered transaction (loan sales, servicing transfers, security issuances) with a specific person; the order is FHFA-wide, covering all three GSEs and all 11 FHLBs simultaneously
  • § 1227.4 — Mandatory reporting: a regulated entity that learns a counterparty has been subject to an administrative sanction, criminal conviction, or civil money penalty involving fraud in mortgage lending must report to FHFA within a specified period; the reporting obligation creates an information pipeline from the regulated entities back to FHFA's suspension authority
  • § 1227.10 — Exceptions: a regulated entity may seek an exception to a suspension order in extraordinary circumstances — for example, if refusing to transact with a suspended counterparty would prevent a legitimate borrower from obtaining a mortgage modification or would disrupt a transaction already in progress; exceptions are narrow and must be pre-approved

• 12 CFR Part 1238 — Stress Testing of Regulated Entities: implements Dodd-Frank § 165(i) stress testing requirements for Fannie Mae and Freddie Mac (as non-bank systemically important financial institutions prior to their removal from the SIFI designation). Each Enterprise must conduct an annual stress test based on December 31 data, applying FHFA-prescribed scenarios:

  • § 1238.3 — Annual test: each Enterprise applies adverse and severely adverse economic scenarios prescribed by FHFA (comparable to Federal Reserve DFAST scenarios) to its balance sheet, projecting credit losses on its mortgage guarantee and investment portfolio, derivative mark-to-market impacts, and operational expenses over a 9-quarter planning horizon
  • § 1238.4 — Methodology: Enterprises must calculate the potential impact on capital, earnings, and risk-weighted assets under each scenario; the methodology must account for the credit quality of guaranteed loans, geographic concentration, product type mix, and counterparty risk from servicers and derivatives counterparties
  • § 1238.5 — Reporting: stress test results must be submitted to both FHFA and the Federal Reserve by May 20 each year; FHFA publishes a public summary of the results showing whether the Enterprises would maintain positive net worth under the adverse scenarios; this public disclosure allows market participants to assess GSE capital adequacy during conservatorship

• 12 CFR Part 1239 — Responsibilities of Boards of Directors, Corporate Practices, and Corporate Governance: FHFA's comprehensive corporate governance framework for regulated entities, establishing minimum standards for board composition, risk management, compliance, and strategic planning:

  • § 1239.10 — Code of conduct and ethics: each regulated entity must maintain a written code of conduct and ethics program; the code must cover conflicts of interest, confidentiality of supervisory information, and the standards of conduct required of directors and officers; FHFA may review and require changes to the code
  • § 1239.11 — Risk management: the board must approve, maintain, and periodically review a risk management program covering credit risk, market risk, liquidity risk, operational risk, and model risk; risk limits and governance structures must be documented; risk appetite must be established and reviewed annually
  • § 1239.12 — Compliance program: regulated entities must establish and maintain a compliance program that identifies applicable legal requirements, assesses compliance risk, and monitors adherence; the compliance function must have sufficient independence to report material deficiencies directly to the board
  • § 1239.14 — Strategic business plan: boards must adopt and maintain a strategic business plan for each calendar year, updated in prior calendar year; the plan must define mission, business objectives, capital targets, and risk strategies; for Fannie and Freddie, the strategic plan must be reviewed by FHFA given their conservatorship status

• 12 CFR Part 1242 — Resolution Planning: requires Fannie Mae and Freddie Mac to submit credible resolution plans to FHFA — the GSE equivalent of bank living wills. Each Enterprise must identify its core business lines, financial interconnections, critical services, and how an FHFA-managed receivership could wind down the entity in an orderly manner:

  • § 1242.4 — Plan frequency: credible resolution plans must be submitted at the frequency and in the format specified by FHFA; initial plans and updates must assess how FHFA as conservator or receiver could facilitate the transfer of mission-critical functions (mortgage guarantee issuance, MBS servicing) without disruption to the mortgage market
  • § 1242.5 — Required content: plans must include an inventory of core business lines, maps of financial interconnections with counterparties and servicers, an analysis of derivative positions and netting arrangements, an assessment of data systems needed to manage resolution operations, and options for disposing of assets in resolution
  • Required and prohibited assumptions are specified — plans must assume the Enterprise's failure occurs in a baseline economic environment (not a severe stress scenario), preventing plans from assuming away the most plausible failure scenarios

• 12 CFR Part 1253 — Prior Approval for Enterprise Products: implements 12 U.S.C. § 4541, which requires FHFA approval before Fannie Mae or Freddie Mac introduce any new product — a new type of mortgage guarantee, new financial instrument, new business activity, or significant enhancement to an existing product. The prior approval requirement is a core conservatorship control mechanism: it prevents the Enterprises from unilaterally expanding into new business lines without FHFA's assessment of safety and soundness risk:

  • § 1253.3 — New activity definition: any business line, business practice, offering, service, or guarantee not engaged in by the Enterprise before February 27, 2023 (the regulatory baseline date) constitutes a new activity requiring prior approval; significant enhancements to existing activities (adding features, changing terms, expanding to new markets) may also require approval depending on their novelty and risk implications
  • § 1253.10 — Public disclosure: FHFA publishes public notices when the Director approves new Enterprise products, creating transparency about what new mortgage guarantee structures and financial instruments are being authorized during conservatorship
  • § 1253.11 — Preservation of authority: approval of a new product does not limit FHFA's conservatorship authority to subsequently modify, restrict, or terminate the product if safety and soundness concerns emerge

Recent Developments

• 2025 — The Trump administration's FHFA Director (a new political appointee given the at-will removal authority established in Collins) announced plans to develop a GSE conservatorship exit framework — the first concrete administration commitment to GSE reform in years; housing finance advocates debated whether release without explicit government guarantee would raise mortgage rates; Treasury and FHFA began a joint review of the PSPAs.
• 2023 — FHFA's review of the Federal Home Loan Bank system (its first comprehensive review since HERA) found that the FHLBs had drifted from their housing mission, with large advance volumes to non-depository institutions and insurance companies; FHFA issued a report recommending FHLBs increase housing mission activities to 10% of net income and establish explicit policies preventing advances to "troubled" institutions — proposals that would reshape the FHLB system's use as an emergency lender.
• 2022 — FHFA updated the GSE credit score requirements (moving from exclusive use of FICO Classic to also accepting VantageScore 4.0 and the updated FICO Score 10T), a change expected to modestly expand mortgage credit access by incorporating alternative credit data.
• 2021 — Collins v. Yellen — the Supreme Court held 7-2 that FHFA's single-director structure with for-cause removal protection was unconstitutional (following Seila Law), and remedied it by severing the for-cause provision, making the FHFA Director removable at will; the Court also remanded the GSE shareholders' challenge to the profit sweep arrangement, though lower courts ultimately rejected the underlying claim.
• 2008 — FHFA placed Fannie Mae and Freddie Mac into federal conservatorship on September 7, 2008, as their capital was depleted by losses on subprime and Alt-A mortgages; Treasury provided $187.5 billion in support to keep both solvent through 2012; subsequent earnings have repaid Treasury far more than the initial support, but the GSEs remain under conservatorship with no legislated exit framework.