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How Crypto-Backed Loans Work: Collateral, Interest, LTV and Liquidation

Crypto-backed loans let you borrow against cryptocurrency, but falling collateral prices and accruing interest can raise LTV until automatic liquidation occurs. Learn the mechanics, fees, repayment rules and risks.
From TheFinanceBase Team9 min to read
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A crypto-backed loan lets you borrow an asset such as USDC while pledging cryptocurrency as collateral. The lender or protocol holds an enforceable claim on that collateral until you repay principal, accrued interest and applicable fees. If the collateral loses value—or the debt grows enough to breach the market’s loan-to-value limit—the position can be liquidated automatically.

The exact interest model, eligible coins, fees, custody arrangement and liquidation threshold depend on the provider and market. Coinbase’s USDC loan interface, powered by Morpho on Base, is a concrete example of the mechanics; its terms should not be treated as universal rules for every lender or country.

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What a crypto-backed loan is

The basic transaction

You deposit or lock cryptocurrency and receive a different asset as debt. In Coinbase’s documented example, eligible customers borrow USDC against crypto collateral through Morpho on the Base network, with Coinbase supplying the user interface. The collateral remains encumbered under the product’s custody or smart-contract arrangement until the loan is settled. Once principal, interest and fees are paid, the collateral can be released according to the product terms. See the provider’s explanation of the structure at Coinbase Help.

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This is borrowing, not an investment yield. Taking a loan does not make the pledged coins earn interest for you. In a separate lender-side activity, USDC depositors supply liquidity to Morpho markets and borrowers’ interest accrues to those lenders. Lenders face protocol, liquidity and bad-debt risks of their own; the lender description is at Coinbase Help.

Why people borrow instead of selling

A borrower may want liquidity while retaining market exposure to the collateral asset. That trade-off is not free: you pay interest and fees, and a price decline can force a sale of the collateral at an unfavorable time. Borrowing therefore replaces an immediate sale with a leveraged obligation and a liquidation risk.

How the process works from application to repayment

  1. Check eligibility and terms. Confirm that your jurisdiction, account and chosen collateral are supported. Review the quoted rate, maximum borrowing amount, liquidation threshold, penalty, custody model and all fees before signing.
  2. Select collateral and loan asset. The platform displays which crypto assets can secure which loan markets. The asset you borrow may be a stablecoin, fiat-linked token or another cryptocurrency; availability is product-specific.
  3. Deposit or authorize collateral. Your coins are transferred to, or locked by, the stated custody or protocol arrangement. Read whether you retain withdrawal control or whether a smart contract controls the position.
  4. Set the borrowing amount. The interface calculates an opening LTV. Borrowing less than the maximum leaves a larger price buffer, while borrowing more increases liquidation sensitivity.
  5. Accept the rate and fees. Variable rates can change with market supply and demand. A processing fee may be added to principal, meaning you pay interest on that fee as well.
  6. Monitor the position. Track collateral value, outstanding principal, accrued interest, current LTV and the market’s liquidation LTV. A position can become riskier without any additional withdrawal if interest accrues or prices fall.
  7. Repay and release collateral. Make partial or full repayments where permitted. After the balance and applicable charges are cleared, collateral is returned or unlocked under the provider’s rules.

Collateral and loan-to-value (LTV)

What collateral does

Collateral is the crypto pledged to secure repayment. It gives the lender or protocol an asset that can be sold if the debt becomes too large relative to its value. The collateral is not a promise that you will avoid losses: its market price can move sharply, and liquidation can occur while prices are falling.

The LTV calculation

Coinbase defines loan-to-value as the outstanding loan—including accrued and unpaid interest—divided by the current market value of collateral. The formula is:

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LTV = (outstanding principal + accrued unpaid interest) ÷ current collateral value × 100

For example, $100 borrowed against $1,000 of collateral produces a 10% LTV. Coinbase presents that as an arithmetic illustration, not as a recommended borrowing level; the example appears at Coinbase Help.

LTV rises in either of two ways: the numerator grows when you borrow more or interest accrues, or the denominator shrinks when the collateral price falls. A stablecoin loan can therefore approach liquidation even when you never draw additional funds.

Liquidation LTV (LLTV) is market-specific

Each Morpho market sets a predetermined liquidation LTV, commonly called LLTV. Reaching that threshold allows the collateral to be liquidated automatically. Coinbase’s health documentation illustrates markets with LLTV examples of 86%, 77% and 62.5%. Those figures describe referenced markets, not industry-wide standards; another collateral asset or market can use a different threshold. Verify the value displayed for your specific loan at the live health screen.

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Measure What changes it Why it matters
Debt balance New borrowing and accrued interest Increases LTV even if collateral is unchanged
Collateral value Market price of the pledged crypto A price fall reduces the denominator and raises LTV
LLTV Market and collateral configuration Crossing it can permit automatic liquidation

Interest, fees and repayment rules

Variable-rate loans

In the Coinbase/Morpho example, variable rates move with supply and demand in the lending market and accrue against the outstanding balance. Coinbase says these loans have no set term or minimum payment, and partial or full repayment is allowed. A changing rate can increase the amount needed to keep LTV under control, so check the current quote rather than relying on the rate shown when you first borrowed. The product overview is at Coinbase Help.

Fixed-rate loans

A fixed-rate loan has a set maturity. Coinbase states that the balance must be repaid in full by that maturity and that paying early does not reduce the interest owed. This is a provider-specific rule; another lender may calculate an early-settlement adjustment differently. Read the repayment terms shown for the exact offer at Coinbase Help.

Processing and platform fees

Coinbase documents a one-time processing fee when a loan is taken or increased. Its published schedule charges 2% on the first $250,000 and 1% on amounts above $250,000. The fee is added to principal, so it also accrues interest; a platform fee may apply in addition. These are Coinbase terms that can change, not a market-wide fee schedule. Confirm the amount displayed before submitting the transaction at Coinbase Help.

Loan feature Documented Coinbase example Question to ask any provider
Rate Variable rate follows market supply and demand; fixed rate has a maturity Can the rate change, and how often?
Repayment Variable loans allow partial or full repayment; fixed loans require full payment by maturity Are minimum payments, a due date or an early-repayment charge imposed?
Processing fee 2% of the first $250,000 and 1% above that, added to principal Is the fee one-time, recurring or included in the balance?
Other charges A platform fee may apply Are there network, withdrawal, custody or liquidation fees?

How liquidation happens

The trigger

Liquidation becomes possible when the calculated LTV reaches the market’s LLTV. A falling collateral price and accumulating interest can combine to cross the line quickly. The protocol or lender may then sell enough collateral to cover the debt, interest and applicable charges. The sale can happen automatically, without waiting for a manual instruction from you.

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Penalties and remaining exposure

Coinbase’s collateral materials say a liquidation penalty can apply, with the threshold and penalty determined by the product and market. Liquidation can therefore cost more than simply repaying the balance: you may lose part of the collateral to the sale and penalty, and a rapidly moving market may produce an execution price different from the price shown in the interface. Details are described at Coinbase Help.

Ways to reduce LTV before the trigger

  • Repay part of the debt. Reducing principal lowers the numerator immediately, although accrued charges may still be due.
  • Add collateral. Increasing the collateral value raises the denominator, provided the platform accepts that asset and the transfer settles in time.
  • Keep a cash or crypto reserve. A reserve gives you a source of repayment during a price shock; do not assume you can sell the collateral at a favorable price.
  • Use alerts and conservative limits. Set notifications well below LLTV and avoid treating the maximum borrowing amount as a target.

Some products offer automatic collateral top-ups or other loan-protection features. Coinbase warns that a top-up can fail or be partial when funds are unavailable, and volatility or technical problems can prevent execution. Its plain-language warning is: “Loan protection helps lower liquidation risk, but it is not a guarantee against liquidation.” Read the feature terms at Coinbase Help.

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Risks beyond a falling coin price

  • Smart-contract risk: A bug or exploit can interfere with collateral accounting, borrowing or repayment.
  • Cyberattack risk: An attack on a protocol, interface or custodian can disrupt access or cause losses.
  • Liquidity risk: If there are not enough buyers or lenders, withdrawals and liquidations may be delayed or execute at unfavorable prices.
  • Liquidation failure risk: Technical outages or stressed markets can prevent a protective action from executing when expected.
  • Counterparty and custody risk: A centralized provider and an on-chain protocol expose you to different operational and legal dependencies.
  • Rate risk: A variable rate can rise while you hold the loan, increasing both cost and LTV.

Coinbase identifies these categories for borrowers and lenders in its product materials; lenders can also face bad debt or delayed withdrawals when collateral falls below the debt or market liquidity is insufficient. See the borrower risks and the lender risks.

How to compare crypto-backed loan offers

Do not compare headline rates alone. Use the same collateral amount and borrowing amount, then evaluate the complete risk and cost structure.

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Comparison area What to verify
Loan asset and collateral Which coins can be pledged, which asset you receive, minimums, and concentration limits
Maximum LTV and LLTV Opening limit, liquidation threshold, warning bands and whether interest is included in the calculation
Liquidation process Who can liquidate, how much is sold, penalty percentage, auction or market execution, and any cure period
Rate structure Fixed or variable, maturity, rate-reset method, and how interest compounds
Fees Origination or processing, platform, network, custody, withdrawal, repayment and liquidation charges
Custody and technology Centralized custody, smart-contract addresses, audits, insurance language and withdrawal controls
Access and legal terms Country eligibility, account requirements, disclosures, tax forms and dispute process
Liquidity and failure handling Withdrawal queues, outage procedures, oracle dependencies and what happens during extreme volatility

A practical monitoring routine

  1. Record the opening collateral quantity, loan balance, rate, fees and LLTV in a spreadsheet or secure note.
  2. Check LTV and accrued interest at each rate reset and whenever the collateral price moves materially.
  3. Keep repayment funds outside the collateral position so a transfer does not depend on selling during a crash.
  4. Confirm that deposits, repayments and top-ups have settled on-chain or in the provider’s ledger; an initiated transaction is not necessarily a completed one.
  5. Recalculate the amount needed to reach a safer LTV after every partial repayment or additional draw.

If a provider’s backup workflow uses a self-custody wallet, remember that network fees may be required. Coinbase’s documented backup instructions refer to a self-custody wallet and ETH on Base for gas; follow the live instructions for your account at Coinbase Help.

Eligibility, taxes and records

Crypto-backed borrowing is not automatically available everywhere. Eligibility, supported assets, rates and liquidation settings can change by jurisdiction, account and market. Keep records of collateral transfers, loan draws, repayments, fees, interest and any liquidation. Borrowing does not, by itself, establish a universal tax result or guarantee that selling collateral later will be tax-free. Coinbase directs customers to maintain records and consult a tax professional; local law determines the treatment.

When the structure may or may not fit

It may fit when

  • You understand the collateral’s volatility and can supply additional collateral or repayment funds quickly.
  • You have a defined use for the borrowed asset and a realistic repayment source that does not depend on a rising crypto price.
  • You have compared the all-in cost, including processing fees, variable-rate risk and possible liquidation penalties.

It may not fit when

  • You would need to borrow near the maximum LTV to meet ordinary expenses.
  • You cannot tolerate losing the pledged crypto or cannot monitor the position.
  • Your repayment plan assumes the collateral will appreciate or that a top-up feature will always execute.

The central decision is not simply whether the quoted interest rate looks low. It is whether the potential cost of interest, fees and forced collateral sale is acceptable for the liquidity you receive, under the exact rules of the market you are using.

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.

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