Crypto-Backed Mortgages, Compared With Buying in Cash

Definition

A crypto-backed mortgage is a home loan collateralized by cryptocurrency: you pledge BTC, ETH, or stablecoins to a lender or custodian and borrow against them instead of selling. As of 2026 the market has two flavors:

  • Specialist crypto mortgage lenders (Milo, Peoples Reserve)
    The whole loan is secured by pledged crypto — Milo’s published rates run roughly 7–9%, and collateral requirements run near 100% of the property value.

  • The conforming dual-loan product (Better + Coinbase)
    A standard mortgage plus a separate Bitcoin-collateralized loan funding the down payment, with the coins held in custody on Coinbase. Announced in March 2026 as the first Fannie Mae-eligible structure of its kind; generally available since August 2026.

This page is about borrowing against your crypto — and whether you should. RealOpen doesn’t offer these loans or take part in them; we’re not a lender. If you want a traditional mortgage and just need crypto to qualify and fund the down payment, that’s a different (and simpler) path — and it doesn’t require surrendering self-custody to an exchange: see the crypto down payment guide. For all four purchase paths side by side, see ways to buy a home with crypto. And for our unvarnished read on the heavily marketed two-loan product, see the 250% fine print on crypto mortgages and its September follow-up on the rehypothecation clause.

Four Ways to Turn Crypto Into a House

Same starting point — a crypto position and a home you want. Four very different structures, costs, and failure modes. Watch the custody column.

StructureInterest costWhere your coins goCollateral riskTaxes
Specialist crypto-backed mortgageFrom ~8.25% (mid-2026, published specialist rates)Pledged to the lender or its custodian — roughly 100% of the property value. Self-custody ends at originationCollateral maintenance terms apply for the life of the loan; a deep drawdown means added collateral or restrictionsNo disposal while the loan performs
Conforming dual-loan (Fannie-accepted, 2026)Mortgage near market rate (high-6s mid-2026) + terms of the separate collateralized loanDown-payment collateral held at an exchange custodian — self-custody ends at originationTwo loans, two sets of fine print; coins locked at a custodian throughoutNo disposal at origination
Standard mortgage + crypto down payment (RealOpen)Mortgage at market rate — no second loan stacked on topSelf-custody the whole way — verified from your own wallet; you convert only what the down payment needsNothing pledged, nothing locked. The rest of your stack stays yours to hold, move, or harvestDisposal only on the amount converted for the down payment
Sell and close as a cash buyer (RealOpen)0% — no loan existsYour custody until closing day; converted at a locked rate when the deal fundsNone after closing — your downside risk ended at conversion, at a price you choseDisposal at conversion — a gain or, in a drawdown, a harvestable loss

The custody column is the one the headlines blur. The exchange-custody requirement belongs to the collateralized products — it was never a condition of qualifying for a conforming loan with crypto wealth. On the two RealOpen paths your coins stay in self-custody, verified from your own wallet, and you still qualify for the Fannie Mae mortgage and fund the down payment (or skip the loan entirely). Keys stay yours; see the crypto down payment guide.

The Part Nobody Puts in the Headline: Collateral Risk

Every crypto-collateralized loan is a bet that your collateral won’t fall far enough to matter. Bitcoin is down roughly half from its late-2025 high as of mid-2026. That is what “far enough” looks like.

The current generation of products advertises “no margin calls” — and to be fair, that’s a real improvement over the last cycle, when margin-called crypto loans wiped out borrowers at firms that no longer exist. But “no margin call” is a product term, not a law of nature. The collateral maintenance clauses still describe what happens when prices fall: added collateral, partial liquidation triggers, or restrictions on your account.

And even in the best case — no call, no liquidation — your coins spend the entire drawdown locked at a custodian securing the debt. You can’t sell the dip, can’t move to cold storage, can’t harvest the loss. You get all of the downside exposure and none of the optionality, while paying 7–8% for the privilege.

In September 2026 the conforming dual-loan product disclosed the clause the launch coverage skipped: pledged bitcoin moves into the lender’s own custodial account at closing and may be rehypothecated — re-lent or re-pledged to third parties while you still owe. It is released only when the entire conforming mortgage is repaid or refinanced; a sale of the house pays off the down-payment loan before any coins come back; and 60 days of delinquency permits liquidation. “Keep your bitcoin” means, precisely, keep a claim on it. The clause-by-clause read is in your bitcoin is now their IOU.

A cash buyer’s worst case already happened — once, at conversion, at a price they chose and locked. There is no clause on page 14 that can make it worse later.

What the Fannie Mae News Actually Changed

In June 2025, the FHFA directed Fannie Mae and Freddie Mac to count crypto held on regulated exchanges as mortgage reserve assets without converting to dollars. In March 2026, Fannie Mae accepted the first crypto-backed conforming product — a dual-loan structure that pairs a standard mortgage with a separate crypto-collateralized loan funding the down payment, coins custodied at the partner exchange. Nationwide rollout began in summer 2026.

That is genuine legitimization — of the asset. Regulators now agree crypto is real wealth that counts toward buying a home, which is the argument crypto buyers have been making for years. What it does not legitimize is the debt: Senate critics have compared the dual-loan structure to crisis-era piggyback loans, and the criticism lands — two loans, two sets of fine print, a mortgage near 7%, and your coins surrendered to a custodian.

The irony: the same directive that recognized crypto as reserves makes the cash path stronger too. If your crypto counts as documented, verifiable wealth, you can present as a cash buyer — see how a crypto proof of funds works — without borrowing anything from anyone. Lender documentation rules for crypto are covered in the Fannie Mae crypto guidelines explainer.

Who Actually Lends Against Crypto in 2026

If you’re shopping crypto mortgage lenders, the field is smaller than the headlines suggest — three categories as of mid-2026:

  • Specialist crypto mortgage lenders. Milo is the best known: a 30-year mortgage against pledged BTC or ETH, up to 100% financing, published rates roughly 7–9%, collateral near 100% of property value, more than $100 million originated, limited state licensing. Peoples Reserve launched a Bitcoin-secured mortgage in July 2026. Side by side: RealOpen vs. Milo.
  • Better + Coinbase. The conforming dual-loan product — a standard mortgage plus a Bitcoin-collateralized down-payment loan, announced March 2026, generally available since August 2026, coins held in custody on Coinbase. Side by side: RealOpen vs. Better + Coinbase.
  • General crypto lenders and DeFi protocols. Ledn, SALT, Figure, and Strike lend dollars against crypto; DeFi protocols lend stablecoins onchain. None of these is a mortgage, and the proceeds still need sourcing documentation before any escrow will treat them as good funds.

A separate group doesn’t lend against crypto at all but now counts it when you apply for an ordinary loan — Newrez, Rate, and Newfi among them. That is the traditional lane, where verified holdings matter more than pledged ones: see crypto assets as mortgage reserves.

Every one of them is competing against a fourth option that isn’t a lender at all: selling exactly what the house costs and closing in cash. Whatever list you’re comparing, put 0% interest on it.

When a Crypto-Backed Mortgage Actually Makes Sense

We’re contrarian, not dishonest: there are cases where borrowing against crypto is rational.

  • You are confident your crypto will appreciate faster than ~7–8% a year, after tax, over the loan term
  • Selling would realize large long-held gains you have a strategic reason to defer
  • The purchase is small relative to your portfolio, so collateral stress is unlikely to bite

If that’s you, go in with eyes open and read the collateral clauses. For everyone else — especially in a market where many positions carry losses, not gains — the math usually favors converting exactly what the house costs, keeping the rest in cold storage, and closing as a cash buyer. See how RealOpen works for what that path looks like end to end.

Frequently asked questions