Crypto Loans: How Collateral, Interest, and Liquidation Work
Crypto loans allow a borrower to obtain funds by pledging digital assets, or allow lenders to supply assets in exchange for interest. The structure can be centralized, with a company holding assets and administering the loan, or decentralized, with smart contracts enforcing collateral and repayment rules.
Before comparing crypto loans, it helps to understand the mechanics behind the advertised rate. Borrowing cost, collateral requirements, liquidation thresholds, liquidity, platform risk, and withdrawal conditions can all affect the real outcome.
Most crypto borrowing is secured
Many crypto loans are overcollateralized. A borrower deposits assets worth more than the amount borrowed. The relationship between the debt and the collateral is usually expressed as a loan-to-value ratio, or LTV.
If collateral prices fall, the LTV rises. The platform may issue a warning or margin call, require more collateral, or automatically sell collateral once a liquidation threshold is reached. A fast market move can trigger liquidation before a borrower has time to respond. The borrower can lose part of the pledged asset and still face fees or remaining obligations, depending on the product terms.
The reverse risk also matters. If the borrowed asset appreciates relative to the collateral, repaying the same number of tokens can become more expensive in economic terms.
Centralized and decentralized loans use different trust models
A centralized lender typically handles custody, customer checks, underwriting rules, account statements, and liquidation. The borrower relies on the company’s solvency, security, internal controls, and contract. Access may depend on jurisdiction, account status, asset eligibility, and minimum loan size.
A decentralized lending protocol uses smart contracts to accept collateral, calculate interest, and permit borrowing. Transactions and pool balances may be visible onchain, but software does not eliminate risk. Contract bugs, governance changes, oracle failures, network congestion, and thin liquidity can disrupt a position.
The Commodity Futures Trading Commission’s DeFi report notes that lending protocols often use outside price feeds, or oracles, to value collateral and apply liquidation thresholds. A borrower should understand which oracle is used, how quickly prices update, and what safeguards apply during extreme volatility.
The quoted rate is only one cost
Loan listings may show a borrow annual percentage rate or annual percentage yield, a supply rate earned by lenders, and sometimes a net rate that accounts for rewards or offsets. These figures are not interchangeable. Variable rates can change with pool utilization, market demand, governance decisions, or company policy.
Other costs may include origination charges, platform fees, network gas, conversion spreads, early repayment terms, and liquidation penalties. Not every product uses every fee, so the contract or protocol documentation is the source of truth.
Term also matters. Some loans have a fixed maturity, while open-ended positions remain active as long as collateral and interest requirements are met. A low displayed annual rate can still be unsuitable if collateral must remain locked when the borrower needs liquidity.
Lenders face risks too
Supplying assets to a lending product is not the same as placing money in an insured bank deposit. Investor.gov warns that crypto interest-bearing accounts can expose customers to volatility, illiquidity, company failure, hacking, fraud, and limited recovery if something goes wrong.
In decentralized pools, lenders depend on smart-contract security, collateral quality, liquidation efficiency, and available liquidity. In centralized programs, they also take direct counterparty and custody risk. High yields may reflect real demand, incentives, leverage, or risks that are not obvious from the headline number.
A practical comparison checklist
Start with the asset being borrowed and the asset used as collateral. Then review initial LTV, warning or margin-call levels, liquidation LTV, rate type, term, and current liquidity. Check whether the loan is active and when the data was last synchronized or updated.
Next, identify who controls the collateral and how repayment works. For a protocol, review audits, oracle design, governance controls, upgrade permissions, and emergency procedures. For a company, review custody arrangements, legal entity, financial disclosures, withdrawal policy, and customer protections.
Finally, model adverse conditions. Consider how far collateral could fall before liquidation, how much additional collateral would be needed, and whether network congestion or account restrictions could prevent a timely response.
Key takeaways
- Most crypto borrowing relies on collateral worth more than the loan.
- Falling collateral prices can trigger margin calls or automatic liquidation.
- Centralized lenders add custody and company risk; decentralized protocols add smart-contract, oracle, governance, and liquidity risk.
- Borrow APR or APY does not capture every fee, restriction, or risk.
- Crypto lending and interest accounts generally do not provide the protections of insured bank deposits.
Crypto loans can provide liquidity without an immediate asset sale, but they exchange that convenience for leverage and liquidation exposure. Compare the complete structure, check current platform terms, and treat rate data as changeable. This article is informational and not financial advice.