Coinbase and Better Mortgage have opened crypto-backed mortgages to general availability, allowing borrowers to use bitcoin holdings as collateral for down payments on home loans backed by Fannie Mae. The partnership requires 250% bitcoin collateral, meaning a borrower must hold $250,000 in bitcoin to secure a $100,000 down payment.
The announcement came on August 26, 2026. The mortgages are conforming loans, the standard product purchased by the government-sponsored enterprises that dominate the U.S. secondary mortgage market. Fannie Mae's backing means the loans meet federal underwriting standards and can be sold into the secondary market, a critical distinction from niche lenders.
Better Mortgage, a digital lender founded in 2016, processes mortgages online and has originated roughly $100 billion in loans to date. Coinbase is using its Coinbase One membership program to connect borrowers holding crypto assets to Better's origination platform. The 250% collateral requirement creates a haircut mechanism: bitcoin volatility is managed by requiring borrowers to over-collateralize relative to the down payment they seek.
The product addresses a gap in mortgage lending where borrowers with substantial crypto holdings have historically faced friction converting those assets into down payments. Traditional lenders do not accept crypto as collateral or proof of funds. This partnership chains bitcoin holdings directly to the loan application without requiring a sale into fiat currency.
Fannie Mae has publicly accepted crypto collateral in recent policy guidance. The agency's backing here means underwriters have accepted the 250% collateral ratio as meeting loan-to-value and borrower qualification standards.
The waitlist for the product exceeded 260 million dollars in requested down payments before general availability launched. Borrowers holding bitcoin and purchasing homes face logistical barriers when liquidating crypto through traditional exchanges.
One conforming lender entering the space with a government-sponsored enterprise's backing represents the first time bitcoin collateral has been integrated into the standard mortgage pipeline rather than held in a parallel finance structure. The mechanism test here is whether the 250% haircut proves sustainable as bitcoin's price moves, and whether other conforming lenders replicate the model.
The number to watch is the origination volume in the product's first 12 months. If Better originates fewer than $50 million in crypto-backed mortgages by August 2027, the partnership will have failed to move beyond niche demand among Coinbase's user base.
