Savings DAI

What is sDAI?

sDAI (Savings DAI) is the yield-bearing version of [DAI](/insights/crypto/dai), MakerDAO's decentralized stablecoin. By depositing DAI into MakerDAO's DAI Savings Rate (DSR) contract, users receive sDAI tokens that automatically accrue yield from the protocol's revenue streams. This transforms idle DAI holdings into productive assets, earning returns that have ranged from 1% to over 15% APY depending on market conditions and governance decisions.

Unlike centralized yield-bearing stablecoins backed by Treasury bills, sDAI's yield comes from MakerDAO's protocol revenue, including stability fees paid by vault owners and returns from the protocol's investment strategies. This makes sDAI a fully decentralized yield solution that doesn't rely on traditional financial infrastructure.

Launched as part of MakerDAO's "Endgame" strategy, sDAI has become one of the most widely integrated yield-bearing stables in DeFi. Its ERC-4626 vault standard ensures compatibility across protocols, making it easy to use sDAI as collateral, in liquidity pools, or as a building block for more complex strategies.

Key Statistics

• Total Value Locked: $1.5B+ in the DSR contract
• Current Yield: ~5% APY (variable based on governance)
• Underlying: DAI stablecoin
• Contract Standard: ERC-4626 tokenized vault
• Supported Chains: Ethereum, Gnosis Chain (bridged)
• Issuer: MakerDAO (decentralized governance)

How sDAI Works

sDAI operates through MakerDAO's DAI Savings Rate mechanism. When you deposit DAI into the DSR contract, you receive sDAI representing your share of the total DAI deposited. The contract accumulates yield over time, causing the exchange rate between sDAI and DAI to increase.

The Exchange Rate Model

Unlike rebasing tokens, sDAI uses a price appreciation model:

• Initial rate: 1 sDAI = 1 DAI
• After 1 year at 5%: 1 sDAI = 1.05 DAI
• Your sDAI balance stays constant; its value increases

This approach offers several advantages:

• Gas Efficiency: No daily rebase transactions
• Tax Simplicity: Only taxable on conversion, not daily
• DeFi Compatible: Works with any ERC-20 supporting protocol
• ERC-4626 Standard: Native compatibility with vault aggregators

Yield Mechanism

Source of Yield

sDAI's yield comes from multiple MakerDAO revenue streams:

1. Stability Fees: Interest paid by vault users who mint DAI against collateral
2. RWA Revenue: Returns from MakerDAO's real-world asset investments
3. Protocol Surplus: Excess revenue directed to DSR by governance

Dynamic Rate Setting

The DSR rate is set by MakerDAO governance through votes:

Historical Rates

The DSR has varied significantly:

• 2020-2022: 0-1% (low rate environment)
• 2023: Increased to 5%+ (competitive response)
• 2024-present: 5-8% range (elevated rates)

Use Cases for sDAI

1. Passive DAI Yield

The simplest use case - convert DAI to sDAI and earn:

• No lock-up period required
• Withdraw to DAI anytime
• Automatic yield compounding

2. DeFi Collateral

sDAI is widely integrated as collateral:

• [Aave](/insights/protocols/aave): Supply sDAI to earn additional yield
• [Spark](/insights/protocols/spark-protocol): MakerDAO's own lending protocol
• [Morpho](/insights/protocols/morpho): Enhanced lending rates
• Earn yield on yield: Stack DSR returns with lending APY

3. Liquidity Provision

Provide sDAI in liquidity pools:

• Stablecoin Pools: sDAI/USDC, sDAI/USDT pairs
• Lower IL Risk: Stable-to-stable pairs minimize impermanent loss
• Double Yield: Earn LP fees + DSR in some integrations

4. Treasury Management

DAOs and protocols use sDAI for treasury:

• Earn yield on operational funds
• Decentralized, no counterparty risk
• Permissionless and transparent

How to Acquire sDAI

Direct Deposit (Recommended)

1. Acquire DAI from any source
2. Visit spark.fi or use MakerDAO's interface
3. Approve and deposit DAI
4. Receive sDAI at current exchange rate
5. Begin earning DSR yield immediately

DEX Trading

• [Uniswap](/insights/protocols/uniswap): sDAI/DAI and sDAI/USDC pools
• [Curve](/insights/protocols/curve): Optimized stablecoin pools
• 1inch: Aggregated best rates across DEXs

Yield Aggregators

• Spark Protocol: Combines sDAI with lending yields
• [Yearn](/insights/protocols/yearn): Automated sDAI strategies
• Various Vaults: Third-party yield optimization

Risk Considerations

Smart Contract Risk

sDAI relies on MakerDAO's battle-tested contracts:

• DSR contract has been live since 2019
• Billions in value secured
• Multiple audits completed
• However, smart contract risk never reaches zero

DAI Stability Risk

sDAI is only as stable as DAI:

• DAI maintains peg through over-collateralization
• Historical depegs have been minor and temporary
• Major crypto crashes could stress the system

Governance Risk

MakerDAO governance controls the DSR:

• Rate can be changed through votes
• Large stakeholders influence decisions
• Rate could be reduced if protocol revenue falls

Yield Variability

Unlike Treasury-backed stables:

• Yield not guaranteed or fixed
• Dependent on protocol performance
• Can change without notice based on governance

sDAI vs Other Yield Stablecoins

Frequently Asked Questions

The DSR rate is set by MakerDAO governance based on protocol revenue, market conditions, and strategic goals. It can change through governance votes.

sDAI carries the same risks as DAI plus smart contract risk of the DSR contract. However, the DSR contract is well-audited and battle-tested.

Yes, sDAI is integrated with major lending protocols including Aave, Spark, and Morpho. You can borrow against sDAI while continuing to earn DSR yield.

Simply withdraw from the DSR contract through Spark or directly interact with the contract. You receive DAI at the current exchange rate, which includes your accumulated yield.

Native sDAI exists on Ethereum. Bridged versions may exist on L2s, but verify the bridge's handling of yield accrual before using.

Tax treatment varies by jurisdiction. The yield accrues as price appreciation, which may have different tax implications than interest income. Consult a tax professional.

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