Better Mortgage Gains Right to Reuse Bitcoin Collateral in New Coinbase Loan Program

Better Mortgage's bitcoin-backed loan product allows the lender to reuse pledged BTC for its own purposes, while borrowers cannot recover their crypto until the underlying conventional mortgage is fully repaid or refinanced.

Better Mortgage has launched a bitcoin-backed mortgage program in partnership with Coinbase that grants the lender unprecedented rights to reuse borrowers' cryptocurrency collateral, according to product terms disclosed this week. The arrangement marks a significant departure from traditional secured lending, where collateral typically remains segregated and untouched until a loan is satisfied.

Under the new program, homebuyers can pledge bitcoin as additional collateral alongside a conventional mortgage, potentially improving their loan terms or borrowing capacity. However, the fine print reveals that Better Mortgage retains the right to deploy that bitcoin for its own commercial purposes—including lending it out, using it as collateral for the company's own borrowing, or engaging in other revenue-generating activities.

Borrowers cannot withdraw or access their pledged bitcoin until the entire underlying mortgage is either paid off in full or refinanced through another lender. This creates a long-term lockup that could span decades for typical 30-year mortgages, exposing borrowers to both the opportunity cost of missing potential bitcoin price appreciation and the risk that the lender's reuse of their collateral could result in losses.

The practice, known as rehypothecation, is common in traditional securities lending but remains controversial in crypto markets where custody and control are foundational principles. Critics argue that allowing lenders to reuse customer assets introduces counterparty risk and undermines the self-sovereign ethos of cryptocurrency ownership.

Coinbase's role in the program appears to be primarily custodial and facilitative, providing the infrastructure to hold and track the bitcoin collateral. The exchange has not publicly commented on whether it receives any portion of the revenue generated from Better's reuse of the pledged assets, or what protections exist if Better becomes insolvent while customer bitcoin is deployed elsewhere.

For borrowers, the program offers a way to access home financing without selling bitcoin holdings, potentially preserving exposure to future price gains. However, the tradeoff is substantial: they bear the full downside risk if bitcoin's price falls while simultaneously ceding control and upside participation for the loan's duration. The bitcoin remains encumbered even if its value far exceeds the mortgage balance.

The product arrives as mortgage lenders seek differentiation in a competitive market and as crypto holders look for ways to unlock liquidity without triggering taxable events. Traditional home equity loans and securities-backed lending have long allowed asset owners to borrow against holdings, but the volatile nature of bitcoin and the multi-decade term of mortgages create a unique risk profile that may not be immediately apparent to all borrowers.