How Crypto Loans Work: A Complete Guide (2026)

A crypto-backed loan lets you borrow money against the crypto you already own, without selling it. You lock up an asset like Bitcoin or Ether as collateral, receive cash or stablecoins in return, pay interest while the loan is open, and get your collateral back when you repay. It is one of the most useful — and most misunderstood — tools in crypto, and this guide walks through exactly how it works.

We built crypto.loans to compare these loans without the hype. Below, we explain the mechanics step by step, define the terms that actually matter, lay out the real risks, and help you decide whether borrowing against your crypto is right for you.

What is a crypto-backed loan?

A crypto-backed loan is a secured loan. Instead of a lender assessing your income and credit history, you simply pledge crypto worth more than the amount you want to borrow. That collateral secures the loan, so the lender takes on little risk and you get approved almost instantly — no credit check, no paperwork, no questions about what the money is for.

This is the mirror image of how traditional lending works. A bank loan is usually undercollateralized or unsecured: the bank lends based on your promise (and credit score) to repay. A crypto loan is overcollateralized: you must deposit more value than you borrow. Deposit $10,000 of Bitcoin and you might borrow $5,000 in stablecoins. The surplus is what protects the lender if prices move against you.

Why borrow instead of just selling? Because selling crypto means giving up future upside and, in many places, triggering a taxable event. Borrowing lets you unlock liquidity — to cover an expense, make an investment, or smooth out cash flow — while keeping your position intact. We cover the tax angle in depth in our crypto loan tax guide.

How a crypto loan works, step by step

Every crypto loan, whether on a slick centralized app or an on-chain protocol, follows the same four-stage life cycle.

1. Deposit collateral

You move crypto into the platform — either to a custodial account (CeFi) or into a smart contract you still control (DeFi). The platform values your collateral in real time and calculates how much you can borrow against it based on its maximum loan-to-value.

2. Receive your loan

You draw down cash or stablecoins up to your limit. On a DeFi protocol like Aave the funds arrive in your wallet in a single transaction; on a CeFi lender they can be wired to your bank or sent as stablecoins. Many platforms run an open-ended credit line, so you can borrow only what you need and draw more later.

3. Manage your LTV

While the loan is open, you watch one number: your loan-to-value (LTV) — the size of your loan divided by the current value of your collateral. As crypto prices move, your LTV moves with them. If your collateral falls in value, your LTV climbs toward the platform's liquidation threshold, and you may need to add collateral or repay part of the loan to stay safe. You can model this for any scenario with our loan calculator.

4. Repay and reclaim

Interest accrues for as long as the loan is open. When you repay the principal plus interest, your collateral is unlocked and returned to you. Most crypto loans have no fixed schedule and no early-repayment penalty — you repay whenever it suits you — though some fixed-term products require a single "bullet" repayment at maturity.

CeFi vs DeFi: two ways to borrow

There are two broad models for crypto lending, and the difference matters for your risk, rates, and experience.

• CeFi (centralized finance) lenders like Nexo and Ledn are companies. You create an account, pass KYC identity checks, and hand your collateral to the company to custody. In return you get customer support, fiat payouts to a bank, and a simple app.
• DeFi (decentralized finance) protocols like Compound and Aave are smart contracts. There is no company, no account, and no KYC. You connect a self-custodial wallet and borrow directly from a pool of liquidity. You keep control of your assets, but you also shoulder the technical risk yourself.

Each model has clear trade-offs around custody, rates, privacy, and protection. We compare them head to head in our DeFi vs CeFi loans guide.

Key terms you need to know

A handful of terms come up constantly. Get comfortable with these and the rest of crypto lending falls into place.

• Loan-to-value (LTV): Your loan amount as a percentage of your collateral's value. Borrow $4,000 against $10,000 of ETH and your LTV is 40%. Lower is safer.
• Liquidation: The forced sale of your collateral when your LTV breaches the platform's threshold. This is the single biggest risk of borrowing, and we explain it fully in what is liquidation.
• Collateral factor / max LTV: The maximum you are allowed to borrow against a given asset. Blue-chip assets like BTC and ETH get higher limits; volatile altcoins get lower ones.
• Interest rate (APR): The annualized cost of borrowing. DeFi rates are usually variable (set by supply and demand each block); CeFi rates are often fixed or tiered.
• Margin call: A warning that your LTV is too high and you need to act — add collateral or repay — before liquidation kicks in.
• Health factor: DeFi's version of a safety gauge. A health factor above 1 is safe; if it drops to 1, your position can be liquidated.

How interest and rates work

Crypto loan rates vary enormously depending on the model and your terms. DeFi money markets price algorithmically: the more of a pool's liquidity is borrowed, the higher the rate climbs. That makes DeFi rates the lowest on the market in quiet conditions but unpredictable when demand spikes. CeFi lenders set rates by policy — sometimes a flat fixed APR, sometimes a loyalty tier that rewards holding the platform's token or borrowing at a low LTV.

Here is how the platforms we track currently compare, ranked from the lowest borrow rate:

Rates change, so we verify and date every figure. You can always see the latest on our rate index, and dig into the lowest options in our lowest crypto loan rates guide.

The risks of crypto loans

Borrowing against crypto is powerful, but it is not free of risk. Be honest with yourself about all four before you commit.

• Liquidation risk. Crypto is volatile. A sharp drop can push your LTV past the liquidation threshold and force the sale of your collateral, often at the worst possible time and with a penalty. This is the risk that bites most borrowers.
• Smart-contract risk (DeFi). On-chain protocols are only as safe as their code. A bug or exploit could in principle drain funds. The leading protocols are heavily audited, but the risk is never zero.
• Counterparty risk (CeFi). When a company custodies your collateral, you are trusting its solvency. The 2022 collapses of Celsius and BlockFi showed what happens when a custodial lender misuses or loses customer assets. Look for proof-of-reserves and no-rehypothecation policies.
• Regulatory risk. Crypto lending rules differ by country and change often. Some products are restricted or unavailable in certain jurisdictions, and that can shift after you have already borrowed.

Who should consider a crypto loan?

Crypto loans make the most sense when you want liquidity but believe in your assets long-term. Specifically, they suit:

• Long-term holders who need cash but do not want to sell and lose their position or trigger capital gains tax.
• Tax-aware investors using a loan to access value without a disposal event (subject to local rules and professional advice).
• People with predictable repayment who can comfortably service or repay the loan and monitor their position.

Who should avoid them?

They are a poor fit — and can be dangerous — for:

• High-leverage seekers who borrow at maximum LTV to buy more crypto, amplifying both gains and the odds of liquidation.
• People who can't monitor positions. If you cannot react to a margin call within hours, a volatile market can liquidate you before you notice.
• Anyone borrowing money they cannot afford to repay. A crypto loan is still a loan; the collateral is yours and it is at risk.

Getting started

If a crypto loan fits your situation, the right platform depends on whether you value the lowest rate, self-custody, fiat access, or transparency. Start by comparing every option side by side on our compare page, then read the full review of any platform you are considering. For most beginners who want simple, low-rate stablecoin borrowing, a well-audited DeFi money market is a sensible first stop.

Compare borrowing on Compound

Whatever you choose, borrow conservatively, keep a healthy buffer below the liquidation threshold, and model your position before you click "borrow."