Coinbase Facilitates Initial Crypto-Backed Conforming Mortgages

Coinbase and Better Home & Finance have implemented the first conforming crypto-backed mortgage in U.S. history, enabling borrowers to use Bitcoin or USDC as collateral for a Fannie Mae-backed home loan without needing to liquidate their assets.

This product integrates directly into the $12 trillion U.S. residential mortgage sector, functioning not as a specialized private offering, but as a GSE-conforming instrument supported by the same federal framework that finances over half of American home purchases.

The headline is groundbreaking. However, the underlying mechanism reveals the actual trade-off. BTC is valued at 40% of market value for collateral purposes, while USDC is valued at 80%. A borrower who pledges $100,000 in Bitcoin receives $40,000 in usable down payment credit, a reduction that makes the calculations feasible for the GSEs but requires substantial overcollateralization from the borrower.

This article addresses the requirements for utilizing crypto to purchase a home within this framework and what the existence of this product indicates about the future direction of institutional mortgage infrastructure.

Key Takeaways:

• Policy Trigger: FHFA Director Bill Pulte instructed Fannie Mae and Freddie Mac on June 25, 2025, to create crypto-as-asset underwriting guidelines, establishing the regulatory basis for this product.
• Haircut Mechanism: BTC is assessed at 40% of market value; USDC at 80%. A $100,000 BTC asset results in $40,000 in qualifying collateral.
• First Mover: Coinbase and Better Home & Finance are executing the inaugural conforming loan under this framework; lender Newrez has subsequently introduced its own parallel crypto-backed initiative.
• Scope Limitation: Only assets maintained on U.S.-regulated exchanges with AML compliance and a 60-day holding history are eligible — cold wallets, DeFi positions, and staked assets are not included.

Discover: The best crypto presales gaining institutional momentum right now

How the Loan Structure Actually Works

The product is designed as two instruments combined: a primary conforming mortgage backed by Fannie Mae and a secondary mortgage that covers the down payment, secured by pledged crypto collateral. Coinbase retains custody of the pledged assets; borrowers do not transfer ownership, but the collateral is encumbered for the duration of the loan.

Get your house and keep your crypto.
Crypto-backed mortgages are here – increasing access to homeownership for millions of Americans.
Buy a home without converting your portfolio by using BTC or USDC as collateral for your down payment.
Offered by Better, powered by Coinbase. pic.twitter.com/9hfL3fVty5

— Coinbase (@coinbase) March 26, 2026

The haircut is the key limitation. To generate $80,000 in qualifying down payment credit using Bitcoin at the 40% valuation rate, a borrower must pledge $200,000 in BTC.

USDC’s 80% rate is more capital-efficient; $100,000 in USDC provides $80,000 in usable collateral, but still necessitates a significant overcollateralization buffer.

Fannie Mae’s volatility haircut framework is specifically designed to accommodate the price fluctuations of the asset class without triggering forced liquidations on the borrower’s part.

There are no margin calls. Collateral is not jeopardized by short-term price declines. The crypto position becomes actionable for the lender only after 60 or more days of delinquency, aligning with standard foreclosure timelines and intentionally separating the mortgage’s credit risk from the daily volatility of crypto.

Eligible assets must be held on a U.S.-regulated exchange with full AML compliance and a minimum 60-day documented holding history. Cold wallets are excluded. DeFi positions do not qualify. Staked assets are not included. The framework is intentionally narrow; it exchanges flexibility for GSE compatibility, which is the sole route to conforming status.

The policy framework behind this directly follows FHFA Director Pulte’s June 25, 2025, directive mandating Fannie Mae and Freddie Mac to establish formal underwriting guidelines for digital assets. Phase 1 framework proposals addressing volatility treatment and documentation standards are currently under FHFA review, with a 6-to-12-month timeline anticipated before the introduction of Phase 2 criteria.

Discover: The best crypto presales gaining institutional momentum right now

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