A Bitcoin-backed loan lets you borrow money or a stablecoin by pledging Bitcoin as collateral. You still owe the debt, and your Bitcoin is restricted under the loan’s rules until you meet the repayment and collateral-release conditions. If Bitcoin’s value falls enough to cross a contract’s thresholds, the lender or protocol may require more collateral or repayment—or sell some or all of the Bitcoin.
How a Bitcoin-backed loan works
You pledge Bitcoin to secure a loan, then receive the currency or stablecoin specified in the agreement. The collateral may be held by a lender or custodian, transferred into a platform-controlled arrangement, locked in a smart contract, or held in multisignature escrow. While the debt is outstanding, you generally cannot use the pledged Bitcoin as if it were freely available. Once you repay and satisfy the agreement’s other conditions, the collateral can be released. The exact arrangement and rights depend on the contract and custody model. The IMF’s issue note on crypto lending and borrowing describes these broad differences between centralized and decentralized platforms.
A loan is not a sale: you remain responsible for paying the debt, and the Bitcoin is collateral that can be sold if the agreement’s conditions allow it. A lower starting loan relative to the collateral’s value leaves more room for a price decline before a trigger is reached, but it does not eliminate market, custody, platform, or contract risk.
What LTV means and why it changes
Loan-to-value (LTV) compares the outstanding loan balance with the current value of the collateral:
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LTV = outstanding loan balance ÷ current collateral value
For example, Coinbase’s loan-health documentation illustrates a $100 loan against $1,000 of collateral as 10% LTV. Coinbase’s definition includes principal and accrued, unpaid interest in the balance. Coinbase loan-health documentation explains that a lower LTV indicates better loan health and reduces liquidation risk; it is not a guarantee against liquidation.
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- A Bitcoin price decline raises LTV: the loan balance is measured against a smaller collateral value.
- Accrued interest can raise LTV: if unpaid interest increases the amount owed, the numerator grows.
- Borrowing more can raise LTV: additional debt increases the balance relative to the collateral.
- Repaying debt or adding collateral can lower LTV: either action can improve the ratio, subject to the loan’s rules.
Do not confuse the highest LTV a provider permits at origination with a prudent borrowing level. To assess the buffer, identify the contract’s margin-call and liquidation thresholds, then consider how much collateral value could fall before each is reached and whether you could realistically add collateral or repay within the stated cure period.
What happens if Bitcoin’s price drops
A price drop can push a loan toward a margin call or liquidation threshold. A margin call generally gives the borrower notice to add collateral or pay down debt within a stated period. If the borrower does not cure the shortfall—or if the agreement allows action once a threshold is crossed—the lender or protocol may sell some or all of the collateral. The warning process, deadline, fees, sale method, and extent of any sale are contract-specific.
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The figures below are examples of particular products or agreements, not market-wide rules. They were described in sources checked on October 7, 2026; terms can change, so verify the agreement that applies to you.
| Product or agreement | Described thresholds and response | What the example does—and does not—show |
|---|---|---|
| Corporate facility described in a 2026 SEC filing | Initial margin ratio of 150% of the loan balance, equivalent to approximately 66.7% maximum LTV. At a 130% margin ratio, the lender issues a call requiring added Bitcoin or partial repayment within 24 hours. At 120%, if uncured, it may exercise rights that include liquidation. | The filing said that, as of July 31, 2026, a roughly 22.3% collateral-value decline with no repayment or added collateral would bring the facility to its 130% call ratio. This is a specific corporate facility, not a consumer benchmark. The filing describes valuation using a specified spot reference rate. SEC filing |
| Onramp / Arch terms described in Onramp’s help article | Origination LTV may be up to 50%; a 70% LTV triggers a margin call; partial liquidation may occur at 80%. The article says a partial sale may be limited to the amount it considers necessary to restore LTV to 50%. | Onramp says terms can vary with market conditions, loan size, and eligibility. These are its description of partner Arch terms, not a general lending standard. Onramp Help Center |
| BTCBacked | The provider describes warnings at 75%, 80%, and 85% LTV, liquidation at 90%, and a 5% fee on the original loan amount if liquidation occurs. | These are BTCBacked’s stated terms, not an independent assessment or universal rule. BTCBacked borrowing page |
| Coinbase / Morpho markets | Coinbase says the liquidation LTV is set for each Morpho market and varies by collateral asset. | Coinbase warns that loan protection is not a guarantee against liquidation, including when volatility or technical issues interfere. Check the terms for the specific market. Coinbase loan-health documentation |
These examples use different contract structures and ratios. A margin ratio is not the same measure as LTV: the SEC filing’s 150% margin ratio is approximately 66.7% LTV, while the other examples state LTV thresholds directly. Compare the definitions and triggers in the agreement rather than ranking providers by numbers that may not be directly equivalent.
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Who holds the Bitcoin, and who controls it
Custody affects who can move the collateral and what may happen if a lender or service fails. Centralized platforms may take custody or ownership of deposited assets and administer lending; decentralized platforms may lock collateral through smart contracts. The IMF also notes that collateral may be liquidated to cover an unpaid loan and that charges can include origination, liquidation, and custody fees. Those broad descriptions do not establish your legal rights or the protections of a particular product. IMF issue note
BTCBacked says its collateral is held in 2-of-3 multisignature escrow, that the borrower holds one key and can store it on a hardware wallet, and that the collateral is not rehypothecated. These are the provider’s claims about its own arrangement; they should not be generalized to other lenders or treated as independent proof that funds are risk-free. BTCBacked borrowing page
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When reviewing any arrangement, establish:
- Who holds each key and who can authorize a transfer.
- Whether the lender can reuse or rehypothecate the collateral.
- What happens to the collateral if the lender becomes insolvent, or the service is unavailable.
- Whether and how on-chain activity can be verified.
- What steps, timing, and conditions apply to releasing Bitcoin after repayment.
A borrower-controlled key or hardware wallet may be relevant when the lender supports an escrow arrangement that gives the borrower a key. It is not necessary for every Bitcoin-backed loan, and it cannot prevent a contractually permitted liquidation after a price move.
Repayment, interest, fees, and maturity
Repayment terms determine how much you owe and when you can reclaim the collateral. Read the agreement for the interest calculation and payment schedule, maturity date, early repayment terms, extension or rollover rights, fees, and the precise sequence for collateral release. In particular, check whether payments reduce principal or only cover interest, whether the rate is fixed or variable, and whether a rollover is automatic or at the provider’s discretion.
| Example | Repayment and cost terms described by the source |
|---|---|
| Onramp / Arch, as described by Onramp | Fixed terms up to two years; early repayment without penalties; possible rollover after reassessment of collateral and terms. Onramp Help Center |
| Corporate facility in the 2026 SEC filing | Initial one-year term; prepayment allowed after three months without penalty; renewal provisions are described in the filing. SEC filing |
| BTCBacked | The provider describes a platform charge equal to 1.5% per year of the loan term, paid once, and a 5% liquidation fee if liquidation occurs. These are BTCBacked’s stated terms. BTCBacked borrowing page |
The examples are not interchangeable and do not establish a standard rate, term, or fee for Bitcoin-backed loans. Tax treatment depends on jurisdiction and individual circumstances; these loan terms alone do not establish whether borrowing has a particular tax outcome.
How to compare a Bitcoin-backed loan
Before pledging Bitcoin, compare the details that determine both the cost and the risk of losing access to collateral:
- Starting LTV: How much debt will be outstanding relative to collateral value, including how the provider calculates the balance?
- Call and cure terms: What triggers a margin call, how will you be notified, and how long do you have to add collateral or repay?
- Liquidation mechanics: What threshold permits a sale, can the sale be partial or full, and what fees apply?
- Price valuation: Which reference price or oracle is used, and how is the collateral valued during volatility or an outage?
- Rate, fees, and term: Is interest fixed or variable, what charges apply, when does the loan mature, and what are the early-payoff and rollover rules?
- Custody and control: Who holds the Bitcoin and keys, can the collateral be reused, and what are the insolvency and service-outage procedures?
- Eligibility and jurisdiction: Are the product and its terms available to you where you live, and do you qualify?
- Release process: What must be paid or verified before collateral is returned, and how long does release take?
Make sure the cure window is practical for you: a price-triggered notice is only useful if you can respond in time. Provider thresholds are product-specific; an example from one lender should not be treated as a safe borrowing limit for another.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
