How Fannie Mae's New Policy Lets You Use Bitcoin as Collateral to Buy a Home
For years, Bitcoin holders faced an uncomfortable choice when buying a home: sell your crypto, trigger a taxable event, and lose exposure to future upside — or keep your holdings and scramble for a down payment from other sources.
That changed in March 2026 when Fannie Mae began accepting crypto-backed mortgages for the first time, opening a path for borrowers to pledge Bitcoin as collateral without liquidating it.
Here is how the new policy works, what it means for borrowers, and the technical details that matter most.
The Regulatory Backstory
The groundwork was laid in June 2025, when Federal Housing Finance Agency (FHFA) Director Bill Pulte directed Fannie Mae and Freddie Mac to prepare proposals for treating cryptocurrency held on regulated U.S. exchanges as eligible reserve assets in single-family mortgage risk assessments — without requiring conversion to U.S. dollars first.
The directive required both government-sponsored enterprises (GSEs) to submit proposals to their boards of directors and then to the FHFA for final review, with built-in adjustments to account for crypto's market volatility.
That directive has now culminated in a live product.
Through a partnership between mortgage lender Better Home & Finance and Coinbase, qualified borrowers can pledge Bitcoin (or the USDC stablecoin) as collateral to cover the down payment on a conforming mortgage — a loan that meets Fannie Mae's guidelines and can be purchased and guaranteed by the agency.
How the Two-Loan Structure Works
The product relies on a dual-loan architecture.
The first lien is a standard conforming mortgage originated by Better, designed to meet all of Fannie Mae's existing purchase eligibility requirements. It functions identically to any other conventional mortgage Fannie Mae might guarantee.
The second piece is a separately financed loan secured by the borrower's pledged Bitcoin or USDC. This second loan funds the down payment on the first, allowing the borrower to meet conforming loan-to-value requirements without converting their crypto to cash.
Better originates and services both loans, while Coinbase provides custody and infrastructure for the pledged digital assets through its Coinbase Prime institutional platform.
Because the first-lien mortgage itself conforms to Fannie Mae's standard guidelines, it carries the same borrower protections and underwriting standards that apply to any conventional home loan. The crypto-collateralised component sits alongside the primary mortgage rather than inside it.
Custody and Eligibility Requirements
Not all Bitcoin qualifies. Under the current framework, only crypto assets that can be evidenced and stored on a U.S.-regulated centralised exchange are eligible. At launch, Coinbase, Kraken, and Gemini meet this standard.
Self-custodied Bitcoin — whether in hardware wallets, multisig setups, or cold storage — is currently excluded.
Once pledged, the borrower's crypto is transferred into Better's Coinbase Prime account and locked for the life of the loan. The assets cannot be traded, withdrawn, or otherwise moved until the loan is repaid in full, at which point they are returned to the borrower.
The Volatility Haircut
Given Bitcoin's well-documented price swings, Fannie Mae's guidelines apply a significant volatility discount. A 50 to 60 percent haircut is imposed on the market value of pledged BTC, meaning that $100,000 worth of Bitcoin counts as only $40,000 to $50,000 toward reserve and down payment requirements.
This buffer is designed to insulate the mortgage's risk profile from short-term price drawdowns.
The haircut effectively means borrowers need to pledge roughly twice the dollar amount they would otherwise need in cash for a down payment. For many long-term holders sitting on substantial unrealised gains, however, this trade-off is far preferable to a taxable liquidation.
No Margin Calls, Higher Rates
One of the most notable features of the product is the absence of margin calls. Unlike typical crypto lending platforms, if the value of the pledged Bitcoin falls after origination, the terms of the first-lien mortgage do not change and no additional collateral is required.
The borrower's pledged crypto is only at risk of liquidation in the event of a 60-day payment delinquency — the same general timeline as conventional mortgage default proceedings.
The trade-off for this borrower-friendly structure is cost. Crypto-backed mortgages carry interest rates between 0.5 and 1.5 percentage points above standard 30-year fixed rates, depending on the borrower's credit profile and overall risk assessment. For a $400,000 loan, that translates to roughly $100 to $300 more per month compared to a traditional mortgage at prevailing rates.
What Comes Next
Better and Coinbase have signalled plans to expand the range of eligible collateral beyond Bitcoin and USDC. Tokenised equities, fixed income products, and tokenised real estate assets are all on the roadmap, contingent on market conditions and regulatory developments.
For now, the immediate significance is hard to overstate. Fannie Mae and Freddie Mac together guarantee more than half of all U.S. mortgages. By accepting Bitcoin as indirect collateral within a conforming loan framework, the housing finance system has granted digital assets a level of institutional legitimacy that did not exist even a year ago.
For Bitcoin holders who want to buy a home without selling their position, the math just changed.
