How a Crypto-Backed Mortgage Actually Works in 2026

A crypto-backed mortgage lets you buy a home using bitcoin or other digital assets as collateral instead of selling them for a cash down payment. In mid-2026 this is no longer theoretical: on March 26, 2026, Fannie Mae accepted its first crypto-collateralized product, a dual-loan structure from Better Home & Finance and Coinbase, and the first loan closed in Ann Arbor, Michigan in June 2026. Specialty lenders like Milo have offered non-conforming versions for years. But the phrase covers two different things, and knowing which one you are dealing with determines your down payment math, your rate, and your tax bill.

Key points

• "Crypto-backed mortgage" means either (a) crypto helping you qualify for a conventional loan or (b) a loan actually collateralized by your coins. The rules differ sharply.
• FHFA Decision No. 2025-360 (June 25, 2025) ordered Fannie Mae and Freddie Mac to draft proposals treating exchange-held crypto as reserve assets without dollar conversion. As of July 2026, the Fannie Mae Selling Guide still requires conversion to USD.
• The first Fannie Mae-accepted product (Better + Coinbase, March 2026) requires bitcoin collateral worth at least 250% of the down payment loan. Plan around the haircut, not your coin balance.
• Pledging crypto is not a taxable event under current IRS treatment. Selling it to fund a down payment is.

Two products share one name

When lenders, regulators, and headlines say "crypto-backed mortgage," they mean one of two structures.

Structure one: crypto helps you qualify for a conventional mortgage. Here the loan itself is ordinary. Your digital assets enter the file as reserves or as the documented source of your down payment. Under the current Fannie Mae Selling Guide (section B3-4.1-04, last updated by Announcement SEL-2022-04), virtual currency must be exchanged into U.S. dollars and held at a U.S. or state-regulated financial institution, with the funds verified in dollars before closing. Crypto cannot be used for the earnest money deposit at all. The FHFA directive discussed below aims to change this, but the change has not landed in the guide yet.

Structure two: a loan actually collateralized by your coins. Here you pledge bitcoin (or ETH, or USDC, depending on the lender) into custody, and the pledge secures either the whole mortgage or a companion loan that funds your down payment. You keep market exposure to the asset. You also keep its downside: if prices fall far enough or you stop paying, the lender can liquidate.

Competing articles routinely blur these two. Underwriting treats them differently, the IRS treats them differently, and your monthly payment comes out differently. Everything below keeps them separate.

What the FHFA directive changed, and what it did not

On June 25, 2025, Federal Housing Finance Agency Director William J. Pulte signed Decision No. 2025-360, ordering Fannie Mae and Freddie Mac to "prepare a proposal for consideration of cryptocurrency as an asset for reserves" in single-family mortgage risk assessment, without conversion to U.S. dollars. The order came with conditions:

• Only crypto that can be evidenced and stored on a U.S.-regulated centralized exchange counts.
• Each enterprise must build in adjustments for market volatility, meaning a haircut on the crypto's face value.
• Each must apply risk-based limits on the share of reserves made up of crypto. The directive requires caps to exist but does not set a number.
• Proposals need board approval before going to FHFA.

What has actually happened since? Less than the headlines implied. As of July 2026, the Fannie Mae Selling Guide's virtual currency section still carries its 2022 language requiring conversion to dollars, and no final FHFA-approved framework applies across both enterprises. The Senate Banking Committee has pressed Director Pulte with questions about volatility and consumer risk. Industry reporting through spring 2026 describes lenders waiting on final guidance rather than underwriting to draft proposals.

The one concrete milestone is a product, not a rule change. In March 2026, Fannie Mae agreed to accept a token-backed conforming mortgage designed by Better and Coinbase. The structure is clever precisely because it does not need the Selling Guide to change: the mortgage on the home is a standard conforming loan, and the crypto secures a separate loan.

Lenders offering crypto mortgages in mid-2026

Better + Coinbase (conforming, dual-loan). Launched March 26, 2026, first loan closed June 2026, with broad rollout planned through the summer. You receive two loans at closing: a conforming Fannie Mae mortgage on the home (15- or 30-year fixed) and a companion loan, secured by your pledged crypto plus a second lien on the property, that funds your cash down payment. Bitcoin collateral must be worth at least 250% of the down payment loan; USDC starts around 125%. Pledged assets sit in Better's custodial account on the Coinbase platform. Better states there are no volatility-triggered margin calls; liquidation happens only after roughly 60 days of payment delinquency, and the crypto is returned in full once the loan is repaid or refinanced. Coinbase One members can get a rebate of 1% of the loan amount, capped at $10,000, applied to closing costs or rate buydown.

Milo (non-conforming specialty lender). Milo has run a crypto mortgage program since 2022 and, per CoinDesk, crossed $100 million in originations by February 2026. Its published terms: pledge bitcoin or ether worth 1x the property value in exchange for up to 100% financing, loans starting at $275,000, advertised rates of 7-9% on a 30-year fixed, with collateral held by BitGo and Coinbase. The appeal is zero cash down; the cost is locking up crypto equal to the entire purchase price and paying a rate well above conforming.

What about Figure? Figure Lending actively offers crypto-backed personal loans (BTC, ETH, SOL as collateral, up to 75% LTV, 12-month terms), but that is not a mortgage. Some borrowers use such a loan to raise cash for a down payment, which lands them in seasoning and source-of-funds documentation questions with their mortgage underwriter. Treat it as a different product; our guide to how bitcoin loans work covers that structure.

Other entrants are circling. Newrez reportedly announced plans in late 2025 for its own crypto-backed program. Expect the roster to grow if FHFA finalizes reserve rules.

Worked example: a buyer with $500,000 in bitcoin

Meet a hypothetical buyer holding $500,000 in BTC (cost basis $150,000) who wants a $400,000 house and would rather not sell. The numbers below are illustrative, using terms the lenders publish.

Route A: Better/Coinbase dual loan. She targets 20% down, so the down payment loan is $80,000 and the conforming first mortgage is $320,000. Bitcoin collateral must cover 250% of the down payment loan: $80,000 × 2.50 = $200,000 of BTC pledged. She keeps $300,000 of BTC free, sells nothing, and recognizes no capital gain. She now services two loans: the $320,000 conforming mortgage at market rates plus the $80,000 collateralized loan. Underwriting still checks her income and DTI against both payments; the pledge replaces cash, not qualification.

Route B: Milo. She pledges BTC equal to the property value: $400,000 of her $500,000. In exchange she can finance up to 100% of the purchase, so $0 cash down, at an advertised 7-9% fixed. Roughly $400,000 at 8% over 30 years runs about $2,935/month in principal and interest before taxes and insurance, and 80% of her stack is locked in custody for as long as the loan needs it.

Route C: conventional loan, sell to fund. She sells $80,000 of BTC. With her basis, most of that sale is long-term gain; at a 15% federal capital gains rate on the appreciated portion, the tax cost lands in the $9,000-$11,000 range depending on her lot selection, before any state tax. She must also document the conversion trail to dollars per B3-4.1-04 and give up future upside on the sold coins.

Same buyer, same house, three very different balance sheets afterward.

Common mistakes that cost real money

Counting your coin balance as your down payment. The single most expensive planning error in 2026 is reading "use your bitcoin to buy a home" and assuming $100,000 of BTC funds a $100,000 down payment. Under the 250% collateralization rule, $100,000 of pledged bitcoin supports a down payment loan of only $40,000. Buyers who discover the haircut a week before their offer deadline end up selling coins in a hurry, which leads directly to the next mistake.

Selling to close when the plan assumed pledging. A pledge is tax-silent; a sale is not. If your financing falls through late and you liquidate appreciated crypto to save the deal, you crystallize a capital gain in that tax year, possibly at short-term rates, and possibly with estimated-tax penalties if nothing was withheld. As an Enrolled Agent, I see this version of the story every filing season. Build the sale scenario into your plan from day one, or keep a cash reserve so you never face a forced sale.

Assuming the FHFA directive is already the rule. It ordered proposals. It did not rewrite underwriting. If a loan officer tells you unconverted crypto now counts as Fannie Mae reserves, ask them to point to the Selling Guide section, because B3-4.1-04 still says dollars.

Ignoring liquidation mechanics. Terms differ by lender. Better ties liquidation to 60 days of delinquency rather than price moves; specialty products historically included collateral top-up provisions on deep drawdowns. Read the pledge agreement, not the marketing page.

Taxes: why pledging beats selling

The IRS treats digital assets as property. Its digital assets guidance lists selling, exchanging, or otherwise disposing of them as reportable, taxable events. Pledging collateral is none of those: you retain ownership while the custodian holds the asset, so no gain is recognized when the loan opens. That is the entire tax logic behind these products, and it mirrors the general rule for borrowing against bitcoin outside real estate.

Three tax edges to respect. First, a lender liquidation after default is your disposition; you owe tax on the gain even though you never touched the proceeds. Second, answer the digital asset question on Form 1040 accurately in any year you dispose of coins. Third, mortgage interest on the conforming first loan generally follows normal acquisition-debt deduction rules, but interest on a companion crypto-secured loan is a facts-and-circumstances question worth a professional's review before you count on the deduction.

Before signing anything, run your Loan Estimate through the CFPB's explainer tools and compare at least the conforming dual-loan route against a plain mortgage with a documented crypto-to-USD conversion. Sometimes the boring route wins.

Sources

• Fannie Mae Selling Guide, B3-4.1-04: Virtual Currency
• IRS: Digital Assets
• CFPB: Buying a House
• Better Mortgage: Crypto-Backed Mortgages
• Milo: Crypto-Backed Mortgage
• Ballard Spahr, Consumer Finance Monitor: FHFA directs Fannie Mae, Freddie Mac to develop plans to use cryptocurrency as assets without conversion to dollars
• Yahoo Finance: Better and Coinbase issue the first crypto-backed conventional mortgage
• CoinDesk: Crypto mortgage lender Milo surpasses $100 million in home loans