Dollar Vault has been replaced by Earn

To generate rewards on your Digital Dollars, use the Digital Dollars (USDC) program in Earn. See How do I use Earn?

If you still hold a Dollar Vault balance, your funds are safe and they remain on-chain until you move them. See Moving your legacy Dollar Vault balance below.

What was Dollar Vault?

Dollar Vault was a savings option within your non-custodial World Wallet, available to World ID-verified users. It held your Digital Dollars (USDC) in a locked smart contract, separate from your Spending balance, where they could generate yield from a third-party provider.

Your USDC could sit in one of two places:

1. Vault: Your USDC were locked via a decentralized smart contract until you chose to unlock them, and could generate yield from third-party providers.
2. Spending: Your USDC were ready for daily transactions.

Earn now fills the role Dollar Vault used to.

How Dollar Vault generated yield

Dollar Vault yield came from the Sky Protocol, not from World Money. When you deposited into a Dollar Vault, a decentralized smart contract swapped your Digital Dollars for sDAI — a token representing the value of the Dai Savings Rate (DSR) paid to depositors in the Sky Protocol.

This is why a legacy Dollar Vault balance appears on-chain as sDAI or Savings DAI rather than as USDC.

Yield on sDAI was tied directly to the Dai Savings Rate, which is variable and set by the Sky Protocol, not by World Money. Rates could change at any time, and any yield was subject to the third-party provider's terms and conditions.

Earn generates rewards differently: it uses Morpho, and shows you the current APY before you deposit.

Moving your legacy Dollar Vault balance

If you hold a balance in a legacy Dollar Vault, you'll see an upgrade prompt with two options:

• Upgrade to Earn: moves your balance into an Earn program, where it continues to generate rewards.

• Transfer to spending: moves it to your spending balance, where it's available to send, receive, or swap, and no longer generates rewards.

  

Note: In World Money, your USDC cash balance is labelled Dollars USDC. If you transfer a Dollar Vault balance to spending, that's where you'll find it.

Tap the prompt and follow the steps. Where the prompt appears depends on your app version.

Note: Transfers to your spending balance are processed immediately. Withdrawals from Earn work differently and timing depends on on-chain liquidity and protocol conditions, so they may not be immediate.

I can't find my Dollar Vault, or my balance shows as 0

Your funds are not lost. A legacy Vault balance stays on-chain as sDAI until you move it. Contact support with your app version, your operating system, and a screenshot of your Earn screen, and we'll locate it for you.

Translations may differ slightly from the original English content. For the most accurate information, please refer to the article's English version if any discrepancies occur.