Bitcoin holders increasingly have ways to access liquidity without immediately selling their BTC. Instead, Bitcoin can be pledged as collateral for loans, allowing borrowers to receive stablecoins or other assets while maintaining economic exposure to BTC.
The model has expanded from centralized crypto lenders into on-chain protocols, where wrapped Bitcoin and newer native-BTC systems are making the asset usable across DeFi.
A Bitcoin-backed loan is typically overcollateralized. A borrower locks BTC worth more than the amount borrowed, receives assets such as USDC, and pays interest until the debt is repaid.
Coinbase, for example, provides access to loans through the Morpho protocol on Base. For Bitcoin loans, BTC is converted into Coinbase Wrapped BTC, or cbBTC, and deposited into a Morpho smart contract as collateral. Eligible users can borrow up to 5 million USDC against Bitcoin.
Unlike conventional bank lending, Coinbase says these collateral-based loans do not require a credit check. Interest rates are variable and respond to supply and demand in the underlying lending market.
Native Bitcoin does not directly operate inside Ethereum-based smart contracts. DeFi protocols have therefore historically relied on tokenized representations such as WBTC and cbBTC.
Coinbase says cbBTC is backed 1:1 by Bitcoin held in custody, allowing BTC value to be represented as an ERC-20 token and used across applications, including lending platforms.
Aave continues to expand Bitcoin-based collateral options. In 2026, its community considered assets including Circle’s cirBTC, while existing wrapped-BTC markets demonstrate demand for using Bitcoin as collateral against stablecoin debt.
The next stage could reduce dependence on wrappers and centralized custodians. Aave Labs proposed a Babylon-powered Bitcoin market for Aave V4 in May 2026. The design would allow native BTC to remain on Bitcoin while supporting borrowing, rather than moving the asset through a traditional wrapped token.
Babylon’s proposed Trustless Bitcoin Vaults lock BTC in Taproot UTXOs governed by on-chain conditions. The proposal specifically aims to avoid bridges, wrapped assets and custodians.
Borrowing against Bitcoin does not eliminate BTC volatility. If Bitcoin falls far enough, a borrower’s collateral can be liquidated. Coinbase’s Morpho integration, for example, states that liquidation occurs when outstanding debt reaches 86% of the collateral’s market value, with collateral sold to repay the loan and cover a penalty.
Aave similarly requires borrowers to monitor their health factor and add collateral or repay debt when positions approach liquidation thresholds.
Also Read: How Do Bitcoin ETFs Work? A Complete Beginner’s Guide
Using Bitcoin as collateral turns an otherwise idle asset into a source of liquidity without requiring an immediate sale. For long-term holders, this can provide access to stablecoins for payments, investing or other capital needs.
However, leverage introduces liquidation, smart-contract, custody and bridge risks. As native-BTC lending develops, DeFi may become less dependent on wrapped Bitcoin, but prudent collateral management will remain essential.
1. How does a Bitcoin-backed loan work?
A borrower locks BTC worth more than the value of the loan and receives an asset such as USDC in return. The collateral remains locked until the debt and applicable interest are repaid.
2. Why is wrapped Bitcoin used in DeFi lending?
Native BTC cannot directly interact with Ethereum-based smart contracts, so wrapped versions such as WBTC or cbBTC represent Bitcoin on compatible networks. These assets can then be deposited into lending protocols as collateral.
3. Can users borrow against Bitcoin without a credit check?
Some crypto lending platforms use overcollateralized loans instead of traditional credit assessments. The value of the deposited BTC determines borrowing capacity, while the collateral can be liquidated if its value falls too far.
4. What happens if Bitcoin falls while it is being used as collateral?
A sharp BTC decline can push the loan above its permitted loan-to-value threshold. The protocol may then automatically sell some or all of the collateral to repay the debt and any liquidation charges.
5. What is native BTC lending in DeFi?
Native BTC lending aims to let Bitcoin remain on the Bitcoin network while still supporting borrowing through onchain mechanisms. Emerging designs such as Babylon-based vaults seek to reduce dependence on wrapped tokens, bridges and centralized custodians.
Join our WhatsApp Channel to get the latest news, exclusives and videos on WhatsApp
_____________
Disclaimer: Analytics Insight does not provide financial advice or guidance on cryptocurrencies and stocks. Also note that the cryptocurrencies mentioned/listed on the website could potentially be risky, i.e. designed to induce you to invest financial resources that may be lost forever and not be recoverable once investments are made. This article is provided for informational purposes and does not constitute investment advice. You are responsible for conducting your own research (DYOR) before making any investments. Read more about the financial risks involved here.