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What Is DeFi (Decentralised Finance)? Meaning & Example

A plain-English definition of DeFi (Decentralised Finance): what it means, how it works, and a simple example.

Quick answer

DeFi, or Decentralised Finance, refers to financial services like lending, borrowing and trading built on blockchain smart contracts without traditional intermediaries.

DeFi stands for Decentralised Finance. It is a collective term for financial applications built on blockchain networks, primarily Ethereum, that replicate services traditionally provided by banks, brokerages and exchanges, but using smart contracts instead of centralised intermediaries.

How DeFi works

Instead of a bank holding your deposit and lending it out, a DeFi lending protocol uses a smart contract. You deposit cryptocurrency into a liquidity pool, and borrowers take loans from that pool by providing collateral, typically more than the borrowed amount. Interest rates are set algorithmically based on supply and demand. Everything runs on code, on-chain, visible to anyone.

Key DeFi applications

  • Lending and borrowing: Aave and Compound allow users to earn interest on deposits and borrow against crypto collateral.
  • [Decentralised exchanges](/glossary/decentralized-exchange): Uniswap and SushiSwap let you trade tokens without an order book, using automated market makers.
  • [Yield farming](/glossary/yield-farming): providing liquidity to protocols in exchange for rewards, often paid in the protocol's own token.
  • [Stablecoins](/glossary/stablecoin): DAI is created through a DeFi protocol, MakerDAO, using crypto collateral.
  • Insurance: DeFi protocols like Nexus Mutual offer cover against smart contract failures.

DeFi vs traditional finance

FeatureTraditional financeDeFi
IntermediaryBank, brokerSmart contract
AccessKYC, account openingA crypto wallet
Operating hoursBusiness hours24/7, 365 days
TransparencyLimitedFully open-source and auditable
RecourseLegal system, deposit insuranceCode-based, limited recourse

DeFi and India

Indian users can access DeFi protocols using a crypto wallet, though most mainstream Indian exchanges focus on centralised trading. There is no DeFi-specific regulation in India. Gains earned through DeFi activities, whether from lending interest, liquidity provision or token appreciation, are taxable at 30% under Section 115BBH as Virtual Digital Assets.

Risks

  • Smart contract bugs: a vulnerability in the code can lead to loss of all deposited funds.
  • Impermanent loss: liquidity providers can lose value compared to simply holding the tokens.
  • Rug pulls: anonymous developers can drain liquidity pools and disappear.
  • Complexity: DeFi protocols interact with each other, and a failure in one can cascade through connected protocols.

DeFi (Decentralised Finance) FAQs

The questions people most often ask about DeFi (Decentralised Finance), answered for Indian readers.

Is DeFi legal in India?

There is no specific law banning or regulating DeFi in India. Indian users can interact with DeFi protocols using crypto wallets. All income earned through DeFi, whether lending interest, trading profits or farming rewards, is taxable as VDA income at 30%.

How is DeFi income taxed in India?

DeFi income from lending, staking, yield farming or trading is classified as Virtual Digital Asset income and taxed at a flat 30% under Section 115BBH. TDS of 1% applies when transacting through Indian exchanges. There is no distinction between DeFi and centralised exchange income in Indian tax law.

What is the difference between DeFi and CeFi?

DeFi uses smart contracts on a blockchain for financial services without a central authority. CeFi, or Centralised Finance, uses a company like an exchange or a bank to manage your funds. CeFi offers customer support and simpler interfaces but requires trust in the company.

Can I lose money in DeFi?

Yes. Risks include smart contract vulnerabilities, impermanent loss for liquidity providers, rug pulls by dishonest developers, and general cryptocurrency price volatility. DeFi has no deposit insurance or regulatory protection. Only invest amounts you can afford to lose entirely.

Do I need KYC for DeFi?

Most DeFi protocols do not require KYC because they operate through smart contracts on public blockchains. You only need a crypto wallet to interact with them. However, converting between INR and crypto on Indian exchanges to fund your DeFi activity does require KYC.

Related terms

Smart ContractLiquidity PoolYield FarmingDecentralised Exchange (DEX)StablecoinEthereum

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A note on accuracy: this definition is for general education, not personalised financial or tax advice. Figures are illustrative and rules can change. Confirm anything that affects a real decision.