Bitcoin Backed Mortgage: How to Buy a House Without Selling Your BTC

Bitcoin-backed mortgages are becoming a reality in the United States. In 2026, lenders began offering mortgage structures that allow qualified borrowers to use BTC as collateral for a home purchase without selling their holdings. The development follows Fannie Mae's acceptance of the product structure, which allows government-backed mortgages to be paired with digital asset collateral for the first time.

This article covers how the structure works, why lenders are building it now, what it means in practice for borrowers, and what the first completed transaction tells us about where this goes next.

What Is a Bitcoin Backed Mortgage?

A Bitcoin backed mortgage is a home loan where a borrower pledges Bitcoin as collateral to fund the down payment, rather than selling BTC to raise cash. The Bitcoin stays in custody. The borrower keeps full price exposure. 

A standard mortgage closes alongside the Bitcoin-secured loan as one combined structure.

On June 4, 2026, Joe, a software engineer, and Amy, a graduate student — a couple in their early 30s from Ann Arbor, Michigan — closed the first Fannie Mae-eligible mortgage using Bitcoin as collateral. No BTC was sold. No capital gains were triggered.

"Buying our first home has always been the goal, but I wasn't willing to give up a decade of investing to get there," Joe said. "We closed on our home and my Bitcoin stayed intact."

That transaction confirmed the product is live, regulated, and available to qualified borrowers across the US through a nationwide rollout in summer 2026.

How Does a Bitcoin Mortgage Work?

Joe and Amy didn't walk into a bank and hand over a wallet address. Better Home & Finance (NASDAQ: BETR) a regulated US mortgage lender already inside the Fannie Mae system, partnered with Coinbase to make it work. Here's what happened at closing on June 4, 2026.

• Two loans, one closing: Joe and Amy signed for a standard 15- or 30-year fixed-rate Fannie Mae mortgage on the house, same income checks, same credit requirements, same paperwork as anyone else buying a home. At the same time, a second loan opened, secured by their Bitcoin held in Better's custodial account on Coinbase Prime. That second loan funded the down payment. One closing, two loans, done.

• One bill at the end of the month: Both loans roll into a single monthly payment. No juggling two separate repayment schedules, it lands like a normal mortgage statement.

• Couple's Bitcoin didn't move: The BTC sits locked in Better's custodial account on Coinbase Prime for the life of the loan. Better values Bitcoin at 40% of its market value toward the down payment so $100,000 in BTC unlocks $40,000 toward the purchase. Joe can't trade it, move it, or touch it. What he didn't have to do is watch a decade of holdings get sold at whatever price the market offered the day they needed cash. 

• No margin call at any price, ever: Bitcoin dropping 30%, 50%, or 70% after closing changes nothing about the loan. Better's terms are explicit: price volatility has no impact on the mortgage or the down payment loan. No top-up required. No forced sale. Liquidation is only triggered by missed payments, not price movement. These are entirely separate mechanisms.

• One eligibility hurdle worth knowing: Borrowers must qualify under standard Fannie Mae underwriting income, DTI, credit score, and appraisal. According to program terms reviewed by BorrowOnBitcoin, the minimum FICO is 680, though you should confirm the current threshold directly with Better.

How Much Bitcoin Do You Need to Get a Mortgage?

Here is what the numbers look like.

• Advance rate: Not all collateral is treated equally. Better applies a discount to whatever is pledged. Bitcoin gets valued at 40 cents on the dollar, USDC at 80 cents. A $100,000 BTC position unlocks $40,000 toward the down payment. The same $100,000 in USDC unlocks $80,000. Bitcoin gets the steeper discount because its price moves far more than a stablecoin, the lender is pricing in that risk from day one.

• What that looks like on a real purchase: Buying a $500,000 home means coming up with a $100,000 down payment. To unlock that $100,000 through Bitcoin, $250,000 in BTC needs to sit in custody for the life of the loan. When both loans are fully repaid, the full stack comes back.

• Who this actually works for: Someone with a Bitcoin position, an income, and decent credit who doesn't want to sell. A thin Bitcoin position doesn't stretch far here because the 40% rate means the stack needs to be worth at least 2.5x the required down payment.

• When the pledge is made matters: The 40% rate applies to whatever BTC is worth on closing day. Pledge 1 BTC at $200,000 and $80,000 unlocks toward the down payment. Wait three months and pledge the same 1 BTC at $90,000 and only $36,000 unlocks. Same bitcoin, but timing changes everything.

For context on how Bitcoin compares to other global assets when measured in sats, see Bitcoin as a Unit of Account: Global Assets Priced in BTC.

Benefits of a Bitcoin Backed Mortgage

• No forced sale: BTC stays intact. No position reduction, no timing the market, no capital gains event at the point of purchase.

• Full price exposure retained: If bitcoin appreciates during the loan term, the borrower benefits from the full upside. Selling to fund a down payment permanently removes that position.

• Clean exit when ready: When the home is sold, proceeds clear both loans and 100% of the pledged BTC is released back into the Coinbase account. The holder leaves with the house equity and the full bitcoin position returned.

• Regulated structure: This is a Fannie Mae-eligible product, not a grey-market Bitcoin loan. The regulatory backbone is the same as a conventional mortgage.

• Solves a real gap: According to Better's own press release, 41% of its pre-approved customers qualify on income and credit but can't clear the down payment because their savings are in digital assets rather than cash. This product exists for exactly that group.

Risks of Using Bitcoin as Collateral for a Mortgage

• The BTC is locked: Pledged bitcoin sits in Better's custodial account on Coinbase and cannot be traded, moved, or accessed for the life of the loan. If BTC runs from $200,000 to $2,000,000 during the mortgage term, that upside is unreachable.

• The second loan also places a lien on the property: The down payment loan is secured by both the pledged Bitcoin and a second lien on the home itself. In a 60-day default scenario, Better has recourse to two separate collateral pools, the Bitcoin stack and a claim on the property's equity.

• Forced liquidation triggers a tax event: Pledging Bitcoin as collateral is not a taxable event. However, if Better liquidates the pledged BTC due to a 60-day payment delinquency, that liquidation is widely considered a taxable disposal under US capital gains rules. Consult a tax advisor for your specific situation.

• Self-custody doesn't qualify: Bitcoin in cold storage, hardware wallets, or any self-custody arrangement does not qualify. Better's product requires bitcoin to be held through Coinbase's institutional custody platform. The lender needs the asset to be visible, accessible, and held by a regulated custodian.

• 60 days of missed payments triggers liquidation: Delinquency begins the day after a missed payment. At day 60, Better may liquidate the pledged BTC to cover the outstanding down payment loan balance. At day 180, foreclosure proceedings on the property begin separately. The bitcoin and the house are two separate clocks. Source: Better product page.

• Advance rate locks at closing price: Whatever BTC is worth on closing day determines the purchasing power of the pledge. 1 BTC at $200,000 unlocks $80,000. The same 1 BTC at $90,000 unlocks only $36,000. Timing the pledge matters as much as having the stack.

• Opportunity cost: While pledged BTC remains exposed to price appreciation, it cannot be sold, transferred, used as collateral elsewhere, or deployed into other investments while the loan remains outstanding.

Can You Buy a House With Bitcoin Without Selling It?

Yes, but under specific conditions. The bitcoin must sit on a US-regulated centralised exchange, the borrower must qualify for a standard conforming mortgage on income and credit, and the position must be large enough that 40% of its value covers the required down payment.

Why Bitcoin Holders Are Buying Homes Without Selling

Before Bitcoin backed mortgages existed, a holder could sit on $100,000 in BTC and a bank would still size the loan entirely to fiat income. The Bitcoin didn't count.

Now the bank recognises the BTC at 40 cents on the dollar, but it counts.

A borrower who could only scrape together a $20,000 cash deposit before can now show up with $100,000 in BTC and unlock $40,000 toward a purchase. The monthly payment stays fixed. The BTC sits in custody. The main mortgage carries on as normal throughout.

The fiat system priced a generation out of homeownership. The Bitcoin backed mortgage is one of the first regulated mechanisms giving holders a way back in without needing to lose the bitcoin to get there.