Learn what crypto lending is, how it works, the difference between DeFi and CeFi platforms, key terms like LTV and liquidation, and how to get started.
Arkadii Kaminskyi
Arkadii Kaminskyi
Head of Operations at Sats Terminal
Head of Operations at Sats Terminal with 5 years of experience in crypto. Specializes in DeFi, yield farming, and borrowing — has reviewed 50+ crypto products.
If you have been hearing about people earning yield on their crypto or borrowing cash without selling their Bitcoin, you have probably wondered: what is crypto lending, and how does it actually work? In this guide, we break down everything a beginner needs to know about crypto lending in 2025, from the basic mechanics to the different platform types, the key terminology you will encounter, and a practical roadmap for getting started. Whether you are a long-term Bitcoin holder looking for liquidity or someone exploring decentralized finance for the first time, this guide is for you.
Crypto lending is a financial service that lets cryptocurrency holders either lend their digital assets to earn interest or use their crypto as collateral to borrow funds, typically stablecoins or fiat currency. Think of it as the crypto-native equivalent of a bank loan, except the collateral is digital, the process is often automated by smart contracts, and the barriers to entry are dramatically lower.
In a traditional bank, you might pledge your house as collateral to borrow money. In crypto lending, you pledge your Bitcoin, Ethereum, or other supported assets instead. The lender gets paid interest for providing capital, and the borrower gets access to liquidity without having to sell their holdings. This is especially appealing for long-term investors who believe their assets will appreciate but need cash now for expenses, investments, or other opportunities.
Crypto lending has grown into a multi-billion-dollar industry. By early 2025, total value locked across DeFi lending protocols alone exceeded $40 billion, and centralized lending platforms collectively managed billions more. The appeal is straightforward: it creates a marketplace where capital is allocated more efficiently, yields are often higher than traditional savings accounts, and access is not limited by geography, credit scores, or banking relationships.
At its core, crypto lending involves three participants: borrowers, lenders, and the platform or protocol that connects them. Here is the simplified flow:
What makes crypto lending unique is the concept of overcollateralization. Because crypto assets are volatile, most platforms require borrowers to deposit collateral worth significantly more than their loan. For example, if you want to borrow $10,000 in USDC, you might need to deposit $20,000 worth of Bitcoin. This protects lenders from losses if the collateral value drops.
If the value of the collateral falls below a certain threshold, the platform will issue a margin call or automatically liquidate part of the collateral to repay the loan. This automated risk management is one of the defining features of crypto lending, especially in DeFi, where smart contracts handle everything without human intervention.
For a much deeper dive into the step-by-step mechanics, read our full breakdown on how crypto lending works.
One of the first distinctions you will encounter in crypto lending is the difference between DeFi (decentralized finance) and CeFi (centralized finance) lending. Both achieve the same basic outcome, allowing people to lend and borrow crypto, but they differ fundamentally in how they operate.
CeFi lending platforms work similarly to traditional financial institutions. A company acts as the intermediary, accepting deposits, originating loans, setting interest rates, and managing risk. Examples of CeFi lending platforms include Ledn, Nexo, and Unchained.
How it works: You create an account, complete identity verification (KYC), deposit your crypto, and the platform handles everything else. You interact with the company, not directly with a smart contract or liquidity pool.
Pros of CeFi lending:
Cons of CeFi lending:
DeFi lending operates through smart contracts on blockchains like Ethereum, and increasingly on Bitcoin via Layer 2 networks and wrapped assets. There is no company in the middle. Instead, lending pools are governed by code, and anyone can participate as a lender or borrower without permission.
Major DeFi lending protocols include Aave, Compound, and newer Bitcoin-native options like Zest Protocol. If you are new to the concept, our beginner's guide to DeFi covers the broader ecosystem.
How it works: You connect a self-custody wallet (like MetaMask or a hardware wallet), deposit collateral into a smart contract, and borrow against it. Interest rates are typically set algorithmically based on supply and demand within the pool.
Pros of DeFi lending:
Cons of DeFi lending:
In reality, many borrowers in 2025 use a combination of both. They might use a DeFi protocol for short-term borrowing and a CeFi platform for larger, longer-term loans where they want human support and fixed rates.
Before you start lending or borrowing, you need to understand the core terminology. These terms come up constantly and understanding them is essential for making informed decisions.
Collateral is the crypto asset you pledge to secure a loan. If you are borrowing against Bitcoin, your BTC is the collateral. The collateral is locked in the platform or smart contract for the duration of the loan. You get it back when you repay the loan in full. If you fail to maintain adequate collateral, it may be liquidated.
LTV is the ratio of your loan amount to the value of your collateral, expressed as a percentage. For example, if you deposit $20,000 in BTC and borrow $10,000 in USDC, your LTV is 50%. Lower LTVs are safer because there is more buffer before liquidation. Most platforms offer LTVs between 25% and 75%, with the sweet spot for safety being around 40-50%.
These terms describe the cost of borrowing or the return on lending:
When comparing lending returns, always check whether a platform is quoting APR or APY. In DeFi especially, quoted rates are often variable and can change rapidly based on market conditions.
Liquidation occurs when the value of your collateral drops below a platform-defined threshold (the liquidation LTV). For example, if your liquidation threshold is 80% LTV and your collateral value falls enough that your LTV reaches 80%, the platform or smart contract will automatically sell some or all of your collateral to repay the loan. This protects lenders but can result in significant losses for borrowers.
Understanding liquidation risk is critical. We cover this topic in depth in our article on crypto lending risks every borrower should know.
Because crypto is volatile, most loans are overcollateralized, meaning borrowers must deposit more in collateral than they receive in loan value. This is the opposite of an undercollateralized loan, which is standard in traditional finance where credit scores serve as a proxy for trustworthiness. In crypto, overcollateralization replaces the credit check.
A smart contract is a self-executing program on a blockchain that enforces the terms of an agreement automatically. In DeFi lending, smart contracts hold collateral, distribute loans, calculate interest, and trigger liquidations without any human intermediary.
Stablecoins are cryptocurrencies pegged to a stable asset, usually the US dollar. USDC, USDT, and DAI are the most common. When you borrow against your crypto, you typically receive stablecoins, which can then be converted to fiat, used in other DeFi protocols, or spent directly via crypto-compatible payment rails.
Crypto lending is not just for traders or DeFi power users. Its appeal spans a surprisingly wide range of profiles:
If you own Bitcoin or Ethereum and believe in its long-term appreciation, selling to cover expenses means giving up future upside and triggering a taxable event. Borrowing against your holdings lets you access liquidity while keeping your position intact. This is one of the most popular use cases for crypto lending in 2025.
For Bitcoin holders specifically, our complete guide to Bitcoin borrowing covers this strategy in detail.
On the lending side, depositing stablecoins or crypto into lending pools can generate yields that exceed traditional savings accounts. While rates fluctuate, stablecoin lending yields in 2025 typically range from 4% to 10% APY depending on the platform and market conditions. For lenders comfortable with the risk profile, this represents a meaningful alternative to holding cash.
Active traders use crypto borrowing to gain leverage, short assets, or access capital for arbitrage strategies without liquidating existing positions. By borrowing stablecoins against volatile assets, they can deploy capital more efficiently.
Companies holding crypto on their balance sheets can use lending to manage cash flow, fund operations, or earn yield on idle treasury assets. Institutional-grade platforms now offer custody solutions, compliance frameworks, and dedicated account management tailored to this audience.
In many jurisdictions, borrowing against your crypto is not a taxable event, whereas selling is. Crypto lending can serve as a tax-efficient way to access the value of your portfolio. Consult a tax professional for your specific situation, as regulations vary by jurisdiction and change frequently.
Crypto lending has grown rapidly because it solves real problems that traditional finance does not. Here are the primary benefits:
1. Access liquidity without selling. This is the single biggest draw. You get cash or stablecoins while maintaining your long-term crypto position. If Bitcoin goes from $90,000 to $150,000 while you have a loan, you still benefit from that appreciation because your collateral is returned when you repay.
2. No credit checks. Crypto loans are secured by collateral, not creditworthiness. There is no credit score requirement, no income verification, and no lengthy approval process. This opens financial services to millions of people who are underserved by traditional banks.
3. Speed. On DeFi platforms, you can borrow in minutes. Even CeFi platforms typically process loans within hours to a few days, compared to weeks for a traditional bank loan.
4. Global access. Crypto lending works the same whether you are in New York, Nairobi, or Tokyo. All you need is an internet connection and, for DeFi, a compatible wallet.
5. Competitive rates. With increased competition among protocols and platforms, borrowing rates in 2025 have become increasingly competitive, often ranging from 5% to 12% APR depending on the asset, platform, and LTV ratio.
6. Yield for lenders. On the supply side, crypto lending provides an opportunity to earn meaningful yield on idle assets, particularly stablecoins, which consistently offer returns well above traditional savings accounts.
7. Transparency. Especially in DeFi, every transaction, interest accrual, and liquidation is recorded on-chain and verifiable. You do not have to trust a black box; the code is the contract.
No financial product is risk-free, and crypto lending carries meaningful risks that every participant should understand before committing capital. Being aware of these risks is not a reason to avoid crypto lending, but it is essential for managing your exposure responsibly.
1. Liquidation risk. If the value of your collateral drops sharply, your position may be liquidated, meaning the platform sells your collateral to cover the loan. In a flash crash, this can happen faster than you can react. Maintaining a conservative LTV ratio (below 50%) provides a larger buffer, but does not eliminate the risk.
2. Smart contract risk (DeFi). DeFi protocols are only as secure as their code. While major protocols like Aave and Compound have undergone extensive audits, exploits and vulnerabilities are still discovered. In 2024, DeFi hacks still accounted for hundreds of millions in losses across the ecosystem.
3. Platform/counterparty risk (CeFi). CeFi platforms can mismanage funds, become insolvent, or freeze withdrawals. The collapses of Celsius, Voyager, and BlockFi in 2022 remain cautionary tales. Due diligence on any CeFi platform is non-negotiable.
4. Interest rate volatility. In DeFi especially, borrowing rates are variable and can spike during high-demand periods. What starts as a 5% APR loan could temporarily jump to 20% or higher. Fixed-rate options exist on some platforms but are less common.
5. Regulatory uncertainty. The regulatory landscape for crypto lending continues to evolve. Changes in regulation could impact platform availability, tax treatment, or the legality of certain lending products in your jurisdiction.
6. Oracle risk. DeFi lending protocols rely on price oracles to determine the value of collateral. If an oracle provides incorrect data, it can trigger erroneous liquidations or enable exploits.
For an in-depth look at safety considerations, see our guide on whether crypto lending is safe and what you need to know.
Ready to explore crypto lending? Here is a practical roadmap for beginners looking to either borrow against their crypto or start lending.
Are you looking to borrow liquidity against crypto you hold? Or are you looking to earn yield by lending your assets? The answer determines which platforms and strategies are relevant for you. Borrowers focus on LTV ratios, interest rates, and liquidation thresholds. Lenders focus on yield, platform safety, and the risk profile of the lending pool.
Consider your risk tolerance, technical comfort level, and loan size. If you prefer a familiar interface, customer support, and are comfortable with KYC, CeFi may be the better starting point. If you value self-custody, transparency, and are willing to learn wallet management, DeFi opens up more options.
Many people start with CeFi for simplicity and explore DeFi once they are more comfortable with the ecosystem.
Not all platforms are created equal. Evaluate them based on:
Aggregators like Borrow by Sats Terminal can simplify this process by letting you compare loan terms across multiple protocols and platforms from a single interface, saving you the time of checking each one individually.
Especially if you are new, start with a small amount to understand the mechanics. Borrow at a low LTV (30-40%), familiarize yourself with the interface, and learn how interest accrues and how collateral management works before scaling up.
Once you have an active loan, do not set and forget. Monitor the price of your collateral relative to your loan. Set alerts for significant price drops. Know your liquidation price and have a plan for adding collateral or repaying part of the loan if the market moves against you.
Depending on your jurisdiction, the tax treatment of crypto lending income, borrowing, and liquidation can vary widely. In the US, lending income is generally taxable, and liquidation may be treated as a sale for capital gains purposes. Consult a tax professional before engaging in significant lending or borrowing activity.
The crypto lending market in 2025 looks very different from the Wild West era of 2021-2022. Several important trends are shaping the industry:
Post-2022 maturation. The collapses of major CeFi lenders like Celsius, BlockFi, and Voyager served as a painful but necessary correction. Surviving platforms have strengthened their risk management, transparency, and proof-of-reserves practices. Borrowers and lenders are more diligent, and the market is healthier for it.
DeFi dominance in lending. DeFi lending has regained and exceeded its previous highs, with protocols like Aave V3 and newer entrants offering increasingly sophisticated features including cross-chain lending, isolated markets for risk management, and improved capital efficiency.
Bitcoin-native lending growth. With the maturation of Bitcoin Layer 2 networks and protocols, Bitcoin holders now have more options for lending and borrowing without wrapping their BTC or moving it to other chains. This is a significant development for the largest crypto community.
Institutional entry. Traditional financial institutions are entering the crypto lending space, either directly or through partnerships. This is bringing more liquidity, tighter spreads, and increased regulatory clarity to the market.
Rate compression. As competition increases and the market matures, borrowing rates have generally trended downward. In 2025, competitive borrowing rates range from 5% to 12% APR for major collateral types, with some platforms offering sub-5% rates for conservative LTVs.
The net effect is a market that is more accessible, more competitive, and more resilient than it was even two years ago. For beginners, this means the infrastructure and guard rails are better than ever.
Common Questions
Crypto lending is legal in most jurisdictions, but regulations vary significantly. In the United States, the SEC has taken enforcement action against some lending products, particularly those offering yield to retail investors. DeFi lending protocols operate in a more ambiguous regulatory space. Always check the legal status in your jurisdiction before participating, and be aware that regulations are evolving.
