What Are Crypto Loans? A Practical Guide

A crypto loan is a loan secured by digital assets. You pledge crypto—such as a token supported by the lender—and borrow another asset, often a stablecoin or fiat currency. If you repay under the agreed terms, you can generally recover your collateral. If you do not, or its value drops far enough, the provider may sell or liquidate it to cover the debt.

Borrowing against crypto can give you access to funds without selling your holdings immediately. But it does not remove market risk or make the loan free: you still owe what you borrowed, and interest, fees, or a fall in collateral value can make the arrangement costly.

Crypto loans are not all alike. Some are offered by centralized companies that hold assets and manage the account. Others operate through decentralized finance (DeFi) protocols, where smart contracts enforce rules on-chain. Compare the exact terms, collateral rules, and failure risks before deciding whether either type suits you.

The basic idea is collateral, debt, and a limit on how much you can borrow. A provider or protocol values your eligible collateral and sets a maximum borrowing amount. That limit is often expressed through a loan-to-value ratio (LTV): the loan amount divided by the value of the collateral.

For example, if collateral is worth $10,000 and you borrow $3,000, your starting LTV is 30%. This example explains the calculation, not a recommended borrowing level or a promise that any provider will accept those amounts. Prices and platform rules can change, so your LTV can rise even if you do nothing when your collateral loses value.

A simplified sequence looks like this:

1. Deposit or transfer supported collateral.
2. Borrow an amount within the provider’s limit.
3. Pay interest or other charges as agreed.
4. Repay the debt to release the collateral, or face enforcement if you breach the rules.

Read how the provider values collateral, which price feeds it uses, and what thresholds trigger warnings or liquidation. Those details matter more than a headline maximum LTV.

Most crypto loans are overcollateralized: you pledge assets worth more than the loan. That buffer helps protect the lender if prices fall, but it does not protect you from losses. A sharp drop can shrink the buffer and push your position toward a liquidation threshold.

The LTV at which a provider issues a warning may differ from the point at which it can liquidate collateral. In DeFi, smart contracts may automatically sell some or all of your collateral when protocol conditions are met. A fast market move, network congestion, or a price-feed problem can leave little time to respond. Centralized providers have their own processes and may reserve rights to act under their terms.

Before borrowing, find out:

• Your starting LTV and the liquidation threshold.
• Whether you can add collateral or repay part of the loan quickly.
• Whether liquidation incurs a penalty or extra costs.
• How collateral prices are determined and how alerts are delivered.

Do not plan to borrow right up to the maximum. A lower starting LTV can leave more room for price swings, but it cannot eliminate liquidation risk. Borrow only an amount you can repay without relying on a rising crypto price.

Crypto loans come in two broad formats. With a centralized provider, a company operates the service, sets eligibility and account rules, and may custody your collateral. You rely on its terms, operations, and ability to return assets. The convenience of an account-based service does not remove the risk that withdrawals are delayed, restricted, or unavailable.

With a DeFi loan, you connect a wallet and interact with a protocol’s smart contracts. Depending on the protocol, you may retain control of your wallet while the contracts hold or manage collateral. You are responsible for signing transactions, paying network fees, choosing the correct network, and understanding contract permissions. Bugs, exploits, faulty price feeds, and thin markets can still cause losses.

Protocols such as Aave, Aave V3, Compound V3, and Morpho Blue are examples of DeFi lending products. Their markets and rules are not interchangeable: supported assets, rates, collateral requirements, and liquidation mechanics can vary. A protocol’s existence is not a guarantee of safety or a recommendation to use it.

Compare who controls the assets, who can change the rules, what happens during an outage, and whether you have a clear route to repay and withdraw. In either format, read the specific product terms rather than assuming all crypto loans work the same way.

The cost is more than the advertised interest rate. A loan may involve a variable or fixed interest rate, an origination or service charge, a withdrawal fee, or a liquidation penalty. DeFi users may also pay network gas for deposits, borrowing, repayments, and withdrawals. These charges depend on the product and transaction conditions; there is no universal crypto-loan fee schedule.

A variable rate can change while you are borrowing, so the amount owed may grow faster or slower than expected. Check whether interest accrues continuously or on another schedule, how it is added to the balance, and whether the displayed rate is current or an estimate. For DeFi, check the live market for the specific asset and chain before signing a transaction.

Before you accept an offer, calculate the likely total repayment using the current terms, then consider how that could change if rates rise or the loan lasts longer. Also check:

• Minimum and maximum loan amounts.
• Repayment deadlines and early-repayment rules.
• Conversion or spread costs if you need fiat.
• Any costs to move collateral between wallets or networks.

If the provider does not clearly show the charges or repayment amount, pause. A low headline rate is not useful if other costs or changing terms make the real expense unclear.

The main risk is losing collateral, but it is not the only one. Crypto prices can fall quickly, leaving you with a loan balance that is large compared with the value of your assets. If collateral is liquidated, you may lose the asset at an unfavorable time and still need to check whether any debt or fees remain under the product’s rules.

You also face provider or protocol risk. A centralized company could restrict withdrawals or fail to return assets. A DeFi protocol could be affected by a smart-contract exploit, an oracle failure, governance changes, or insufficient liquidity. Stablecoins can lose their intended price peg, and the asset you borrow may itself fluctuate. Wallet mistakes or signing a malicious transaction can lead to irreversible loss.

Treat the collateral as unavailable for the duration of the loan. Do not borrow on the assumption that you can always withdraw it, refinance, or sell enough at a good price. Keep repayment funds separate if possible, and understand how to monitor the loan without sharing seed phrases or private keys.

Tax treatment depends on your location and the transaction details. Borrowing itself may be treated differently from selling, but later transfers, liquidation, or disposal of assets can have tax consequences. Keep records and ask a qualified tax professional about your own situation.

Use this checklist before depositing collateral or connecting a wallet:

1. Name the need. Decide how much you need, in which currency, and for how long. Compare a crypto loan with selling a portion of your holdings or other forms of borrowing.
2. Verify the service. Confirm you are using the intended provider or protocol, the correct app or interface, and the correct network. Never share a seed phrase or private key.
3. Read the rules. Confirm supported collateral, LTV limits, interest method, repayment terms, withdrawal conditions, liquidation thresholds, and penalties.
4. Stress-test the position. Ask what happens if collateral drops sharply, the rate rises, or you cannot access the service temporarily. Keep a buffer rather than borrowing the maximum.
5. Check the full cost. Include interest, service charges, network fees, conversion costs, and possible liquidation charges.
6. Plan repayment first. Identify where repayment funds will come from without relying on selling collateral at a favorable price.
7. Monitor after borrowing. Track LTV, rate changes, due dates, and protocol or provider notices. Keep enough funds available to repay or add collateral if needed.

If you cannot explain how repayment and liquidation work, do not proceed until you can.

A few common errors can turn borrowing into an avoidable loss:

• Borrowing the maximum offered. A high starting LTV leaves less room for a price drop. Set your own lower limit and consider how volatile the collateral can be.
• Treating a stablecoin as risk-free. Its value can move away from its target, and the protocol or issuer has separate risks. Check what you actually owe and what you have pledged.
• Ignoring changing rates. A variable rate can make the balance grow faster than expected. Recheck it throughout the loan, not only on the day you borrow.
• Assuming you can always withdraw. Custodians may restrict access; DeFi transactions depend on network and contract conditions. Keep a repayment plan that does not rely on immediate access to collateral.
• Confusing a wallet connection with safety. A wallet does not guarantee a protocol is secure. Verify transaction details, approvals, chain, and token before signing.
• Failing to budget for fees or taxes. Include transaction and service costs, keep records, and check local tax rules.

The practical test is simple: if the collateral falls, costs rise, or access is interrupted, can you still repay without borrowing more? If not, the loan may expose you to more risk than the liquidity is worth.