MakerDAO raised Dai’s debt ceiling to 120 million after supply hit its cap

MakerDAO governance approved an executive proposal on November 8, 2019, that raised the debt ceiling for the existing Dai system from 100 million Dai to 120 million Dai. The same action reduced the annualized stability fee by 0.5 percentage point, from 5.5% to 5%.

The change removed a binding constraint that had prevented users from generating additional Dai against collateral. It did not create 20 million new tokens automatically: it authorized the system to support as much as 20 million more Dai if users opened or expanded collateralized debt positions.

Governance removed a hard limit

Outstanding Dai had reached the protocol’s 100 million ceiling on November 6, 2019. Under MakerDAO’s design, users generated Dai by locking ether in smart-contract positions. The debt ceiling limited the aggregate amount that those positions could create; once the ceiling was reached, new issuance required either repayment of existing debt or a governance-approved increase.

The Maker Foundation’s Interim Risk Team placed the executive proposal before MKR holders on November 7. Maker’s executive-vote process used MKR committed to a proposed system state. When a proposal accumulated enough support to displace the incumbent executive contract, the approved parameters could be activated on-chain.

The fee reduction was a separate monetary-policy decision bundled into the same executive action. The stability fee was an annualized charge applied to Dai debt, not a guaranteed investment return. Lowering it reduced the cost of maintaining a collateralized position and could encourage Dai generation, but the surviving record does not establish how much subsequent demand was caused by the half-point adjustment.

Why the milestone mattered

Reaching the ceiling demonstrated that the nearly two-year-old stablecoin system had encountered a capacity limit through use rather than through a company-directed token sale. The response also illustrated an early form of operational DeFi governance: holders of a governance asset authorized a change to a live protocol’s credit parameters.

Dai was structurally different from a custodial stablecoin represented as a claim on bank reserves. Its dollar-oriented price depended on overcollateralized positions, liquidation incentives, market demand and governance decisions. Raising the ceiling therefore expanded possible issuance as well as the protocol’s exposure to ether-backed debt. It did not certify the peg, eliminate liquidation risk or establish that every Dai could always be sold for exactly one dollar on every venue.

The episode also exposed a practical tension. A hard ceiling could contain growth and collateral exposure, but reaching it could restrict the creation of liquidity needed by market participants. Expanding the limit gave the system room to operate while leaving its smart-contract, oracle, collateral-price and governance-concentration risks intact.

A transition was already approaching

The vote came ten days before MakerDAO’s scheduled November 18, 2019 launch of Multi-Collateral Dai. The migration plan said the existing single-collateral system would continue in parallel for an unspecified period. Under the planned naming transition, the existing asset would become Sai, while the new multi-collateral asset would retain the Dai name.

That chronology matters: on November 8, the approved 120 million ceiling applied to the then-current single-collateral Dai system. It should not be confused with the separate collateral-specific and global limits planned for the new protocol.

Later confirmation and limits

A report published on November 11, 2019 confirmed that the proposal had been approved on Friday, November 8. The official proposal survives, but this reconstruction did not locate a durable primary page exposing the final vote totals and execution transaction together. The record supports the parameter changes and date, while leaving the precise execution time and distribution of voting power for further verification.