How Does DeFi Work Without Banks?
DeFi replaces banks and brokers with smart contracts — self-executing programs on the blockchain. Want to lend money? Deposit into a lending protocol and earn interest automatically. Want to borrow? Post collateral to a smart contract and receive a loan instantly. Want to trade? Use a decentralized exchange that matches orders through liquidity pools. All transactions are transparent, permissionless, and operate 24/7 without human gatekeepers.
What Are the Main DeFi Applications?
Key DeFi categories include: lending/borrowing platforms (Aave, Compound) where users earn interest or take collateralized loans; decentralized exchanges (Uniswap, Curve) for trading without intermediaries; yield farming and liquidity pools for earning returns by providing liquidity; stablecoins that maintain dollar pegs; and derivatives and insurance protocols. Together, these applications create a parallel financial system accessible to anyone with an internet connection.
What Are the Risks of DeFi?
DeFi carries significant risks including smart contract bugs that can lead to fund losses, impermanent loss for liquidity providers, flash loan attacks, and the absence of FDIC insurance or regulatory protections. Additionally, high gas fees on Ethereum can erode returns on smaller transactions. Users should thoroughly research protocols, start with small amounts, and understand that "trustless" does not mean "riskless."
Frequently asked questions
Is DeFi safe for beginners?
DeFi carries higher risk than traditional finance due to smart contract vulnerabilities, lack of consumer protections, and user error potential. Beginners should start with well-established protocols, use small amounts, and thoroughly understand each platform before committing significant funds.
Do you pay taxes on DeFi earnings?
Yes. In the US, DeFi interest, yield farming rewards, and trading profits are all taxable events. Lending income is typically treated as ordinary income, while swaps and sales may trigger capital gains. Tracking DeFi taxes is complex and often requires specialized software.