DAI is the world's leading decentralized, collateral-backed stablecoin that aims to maintain a value of $1. Unlike centralized stablecoins such as USDC or USDT, DAI is issued and governed by the Maker Protocolāa decentralized autonomous organization (DAO) running on Ethereum. As of 2026, DAI has become a cornerstone of DeFi, used in lending, borrowing, trading, and as a savings vehicle. This guide explains exactly how DAI works, what keeps it pegged to $1, its risks, and how it compares to other stablecoins.
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š Table of Contents
What Is DAI?
DAI is a decentralized, soft-pegged stablecoin running on the Ethereum blockchain. Its value is soft-pegged to the U.S. dollar, meaning 1 DAI is intended to be worth $1. Unlike fiat-backed stablecoins, DAI is not issued by a company holding dollars in a bank account. Instead, it is created through over-collateralized loans on the Maker Protocol. Users lock up other crypto assets (like ETH, WBTC, or stETH) as collateral and generate DAI as debt against that collateral. This mechanism ensures that DAI is always backed by more value in crypto assets than the amount of DAI in circulation.
š” Key Characteristics of DAI:
- Decentralized: No central issuer; governed by MKR token holders.
- Overācollateralized: Always backed by more than $1 of crypto assets per DAI.
- Transparent: All collateral and supply data is on-chain and auditable.
- Permissionless: Anyone can generate DAI by opening a vault.
- Global and censorshipāresistant.
DAIās $1 Peg Mechanism
The combination of minting/burning and the DAI Savings Rate keeps DAI close to $1.
How DAI Works: Collateralized Debt Positions (Vaults)
The core mechanism behind DAI is the Maker Vault (formerly known as Collateralized Debt Position, CDP). Hereās a step-by-step breakdown:
Lock Collateral
A user deposits approved collateral (e.g., ETH) into a Maker Vault. The value of collateral is denominated in USD at current market prices.
Generate DAI
Based on a collateralization ratio (minimum 150% for ETH), the user can generate a certain amount of DAI. For example, if you deposit $200 worth of ETH, you might be able to mint up to $133 DAI, keeping the ratio above 150%.
Use DAI
The newly minted DAI can be used anywhere: lending on Aave, providing liquidity, or simply holding. Itās a debt you owe to the vault.
Repay DAI + Stability Fee
To retrieve your collateral, you must return the DAI you borrowed plus a stability fee (annual percentage, paid in DAI or MKR depending on vault). The stability fee is a variable rate set by Maker governance.
Liquidation if Underācollateralized
If the value of your collateral falls too low (e.g., due to market volatility) and the collateralization ratio drops below the required minimum, the vault is liquidated. A liquidation penalty is applied, and the collateral is sold to cover the DAI debt.
š§ Advanced: MultiāCollateral DAI
Since the launch of MultiāCollateral DAI (MCD) in 2019, the system supports many types of collateral, each with its own risk parameters (liquidation ratio, stability fee, debt ceiling). Collateral types include ETH, WBTC, stETH, and even realāworld assets.
How DAI Maintains Its $1 Peg
DAIās peg is maintained through economic incentives rather than direct intervention. There are three main forces:
1. Arbitrage on Minting and Redemption
If DAI trades above $1 on exchanges, users can mint new DAI by locking collateral and selling that DAI for a profit. This increases supply and pushes price back down. If DAI trades below $1, arbitrageurs can buy DAI cheaply, repay vault debt, and unlock collateral worth more than $1, effectively burning DAI and reducing supply.
2. DAI Savings Rate (DSR)
The DSR is a variable interest rate paid to DAI holders who lock their DAI in the DSR contract. When demand for DAI is low (price below peg), Maker governance can raise the DSR to incentivize holding, reducing circulating supply. When price is above peg, the DSR can be lowered to encourage spending.
3. Stability Fee Adjustments
The stability fee (interest rate on borrowed DAI) can be adjusted to make borrowing more or less attractive, influencing the supply of DAI.
Peg Stability Module (PSM)
StabilizerThe PSM allows users to swap USDC (and other approved stablecoins) for DAI at a 1:1 ratio with minimal fees. This acts as a powerful arbitrage tool to keep DAI at $1. For instance, if DAI is $0.99, users can buy DAI and swap via PSM for USDC (redeemable for $1) and profit.
DAI vs Centralized Stablecoins (USDC/USDT)
| Feature | DAI | USDC / USDT |
|---|---|---|
| Issuance | Decentralized, via Maker Protocol | Centralized companies (Circle, Tether) |
| Backing | Overācollateralized crypto assets (ETH, WBTC, etc.) | Cash and cash equivalents in bank accounts |
| Transparency | Onāchain, realātime proof of reserves | Monthly attestations, but not fully on-chain |
| Censorship Resistance | High ā no single entity can freeze funds | Low ā issuers can blacklist addresses |
| Counterparty Risk | Smart contract risk, governance risk | Bank failure, issuer insolvency |
| Adoption in DeFi | Universal, used as primary collateral | Universal, but with centralization concerns |
Key Use Cases in DeFi
DAI is deeply integrated into almost every DeFi protocol. Common uses include:
Lending & Borrowing
Platforms like Aave and Compound allow users to supply DAI to earn interest (variable or stable) or borrow against their deposits. DAI is often the most liquid stablecoin in lending markets.
Yield Farming & Liquidity Pools
DAI is a staple in liquidity pools on Uniswap, Curve, and other DEXs. Farmers earn trading fees and governance tokens by providing DAI paired with other assets.
Stable Savings (DSR)
Users can lock DAI in the DSR contract and earn a passive yield paid by stability fees and system surplus. As of 2026, the DSR remains one of the safest onāchain yields.
Payments & Remittances
Merchants and individuals use DAI for lowācost, borderless transfers without relying on banks. Its stability makes it practical for everyday use.
DAI Savings Rate (DSR)
The DSR is a unique feature of Maker. It allows any DAI holder to deposit their DAI into a smart contract and earn a variable interest rate, funded by the stability fees collected from vaults. The DSR rate is determined by MKR governance and has historically ranged from 0% to 8%+. In 2026, the DSR remains a key tool for stabilizing the peg and offering a riskāfree (protocolālevel) yield.
š¦ How to Use DSR
1. Go to the official Maker dApp or a frontend like Oasis.app.
2. Connect your wallet with DAI.
3. Approve and deposit DAI into the DSR contract.
4. Earn yield that accrues in real time. Withdraw anytime.
Risks of Holding and Using DAI
ā ļø Smart Contract Risk
MakerDAO has undergone multiple audits and has operated since 2017, but smart contract bugs remain possible. A critical vulnerability could lead to loss of funds.
ā ļø Collateral Volatility & Liquidation Cascades
If collateral assets (like ETH) crash rapidly, many vaults could become underācollateralized and get liquidated, potentially causing a supply shock and temporary depeg. This occurred during Black Thursday in March 2020, though the system survived.
ā ļø Governance Risk
MKR token holders control risk parameters. A malicious or incompetent governance proposal could harm the system. However, Maker has a robust governance process and time locks.
ā ļø Centralization of Collateral
Some collateral types like USDC in the PSM introduce centralization. If USDC were to freeze funds, it could impact DAIās backing. Maker has been diversifying into realāworld assets to mitigate this.
MakerDAO and MKR Token
MakerDAO is the decentralized organization that governs the Maker Protocol. Its native token, MKR, serves two main purposes:
- Governance: MKR holders vote on proposals, including adding new collateral types, adjusting risk parameters, and upgrading the system.
- Backstop Capital: If the system incurs bad debt (e.g., from liquidations not covering debt), new MKR is minted and auctioned to recapitalize the system. Conversely, surplus auctioned MKR is burned.
How to Obtain DAI
There are several ways to acquire DAI:
- Buy on a centralized exchange (Coinbase, Kraken, Binance) and withdraw to your wallet.
- Swap on a DEX like Uniswap or Curve using ETH, USDC, or other tokens.
- Generate DAI yourself by opening a vault on the Maker dApp. This requires overācollateralized crypto assets.
- Earn DAI as interest, payments, or rewards in DeFi.
The Future of DAI
MakerDAO continues to evolve. The "Endgame Plan" aims to scale DAI and make it more resilient and decentralized. Key developments include:
- Launch of NewStable and NewGovToken to align incentives.
- Introduction of realāworld assets (RWAs) as collateral, bridging traditional finance and DeFi.
- Expansion to Layer 2 networks for lower transaction costs.
Frequently Asked Questions
DAI is designed to be softāpegged to $1. It can trade slightly above or below $1, but strong arbitrage mechanisms and the DSR keep it very close to $1 in normal market conditions.
USDC is issued by Circle, a centralized company, and backed by dollars in bank accounts. DAI is issued by a decentralized protocol and backed by crypto collateral. DAI is permissionless; USDC can freeze funds.
Yes, severe market crashes or technical issues can cause a temporary depeg. However, the system is designed to recover via arbitrage and governance actions. Historical depegs have been shortālived.
If you generate DAI by locking collateral, it is a debt. You must repay the DAI plus stability fees to unlock your collateral. If you simply buy DAI on an exchange, you have no obligation.
If your vaultās collateralization ratio falls below the liquidation threshold, the vault is liquidated. The collateral is sold to cover the DAI debt, and you incur a penalty. Itās crucial to maintain a healthy ratio.