CoinDesk
Better Mortgage and Coinbase Prime have pulled in $360 million in pre-applications since opening their bitcoin-backed mortgage product to the general public last week, up from the $260 million projected on the earlier waitlist, Better told CoinDesk.
The structure pairs a standard Fannie Mae-conforming first mortgage with a second lien that funds the cash down payment, secured by bitcoin pledged at a 250% ratio. At closing, the BTC moves from the borrower's Coinbase account into Better's custody account on Coinbase Prime. Coinbase acts only as custodian and technology provider, not as a credit decision-maker or liquidator.
Why it matters
The product links a regulated, agency-eligible mortgage with a crypto-collateralized second loan in a way the US housing market has not seen at scale. Fannie Mae rules still govern the first mortgage's qualification, so bitcoin does not replace income, credit, or DTI checks. It only solves the cash-for-down-payment problem, as Better put it.
That framing lets BTC plug into the existing US housing finance stack without asking Fannie or Freddie to amend their credit boxes. The Coinbase Prime custody layer is what makes it operationally viable: a regulated, institutional-grade venue already wired into prime brokerage, settlement, and reporting.
Market impact
The most debated term is rehypothecation. Better disclosed it may reuse pledged bitcoin as long as equivalent BTC remains on hand, meaning borrowers are promised an equivalent quantity, not specific coins, when the loan ends. In a post-FTX market where proof of reserves has become a cultural benchmark, that cuts both ways: Better can put the collateral to work, but the borrower carries exposure to Better's ability to return equivalent BTC decades later.
Liquidation mechanics also differ from typical crypto lending. There are no margin calls on BTC price drops. The pledged bitcoin is only sold after 60 days of missed combined payments, with home foreclosure available after 180 days under Fannie guidelines. Better must pursue the bitcoin first, with standard lending remedies as backstop.
Frequently asked questions
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How does Better's bitcoin-backed mortgage actually work?
Borrowers get a standard Fannie Mae-conforming first mortgage plus a second lien secured by bitcoin pledged at a 250% ratio. The BTC funds the down payment; the conforming mortgage still requires normal income, credit, and DTI checks.
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What does rehypothecation mean for borrowers in this product?
Better disclosed it may reuse pledged bitcoin as long as it keeps equivalent BTC on hand, meaning borrowers are promised an equivalent quantity at payoff, not specific coins. The arrangement exposes them to Better's ability to return that BTC decades later.
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Are there margin calls if bitcoin's price drops?
No. Declines in BTC's price do not trigger margin calls or automatic sales. The pledged bitcoin is only sold after 60 days of missed combined payments, with home foreclosure available after 180 days under Fannie Mae guidelines.
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How much demand has the product seen so far?
Better told CoinDesk pre-applications reached $360 million since the general launch last week, up from a $260 million projection on its earlier waitlist. About 35.9% of current applicants hold more than $500,000 in crypto.
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Is USDC accepted as collateral too?
Not yet. The original March announcement named USDC alongside bitcoin, but Coinbase said the partners launched with BTC alone while they evaluate other collateral for a later phase.
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